RECOMBINANT INFLUENZA VIRUS-LIKE PARTICLES (VLPS) PRODUCED IN TRANSGENIC PLANTS EXPRESSING HEMAGGLUTININ

Abstract

influenza virus-like particles (VLPs) within a plant or a portion of a plant is provided. The method involves expression of influenza HA in plants and the purification by size exclusion chromatography. The invention is also directed towards a VLP comprising influenza HA protein and plants lipids. The invention is also directed to a nucleic acid encoding influenza HA as well as vectors. The VLPs may be used to formulate influenza vaccines, or may be used to enrich existing vaccines.

Description

[0001]This application is a Continuation-in-Part of and claims priority from PCT Application No. PCT/CA2008/001281, filed Jul. 11, 2008. This application also claims priority from Canadian Application No. 2,615,372 filed Jan. 21, 2008; and U.S. Application No. 61/022,775 filed Jan. 22, 2008.

FIELD OF INVENTION

[0002]The present invention relates to the production of virus-like particles. More specifically, the present invention is directed to the production of virus-like particles comprising influenza antigens.

BACKGROUND OF THE INVENTION

[0003]Influenza is the leading cause of death in humans due to a respiratory virus. Common symptoms include fever, sore throat, shortness of breath, and muscle soreness, among others. During flu season, influenza viruses infect 10-20% of the population worldwide, leading to 250-500,000 deaths annually

[0004]Influenza viruses are enveloped viruses that bud from the plasma membrane of infected mammalian and avian cells. They are classified into types A, B, or C, based on the nucleoproteins and matrix protein antigens present. Influenza type A viruses may be further divided into subtypes according to the combination of hemagglutinin (HA) and neuraminidase (NA) surface glycoproteins presented. HA governs the ability of the virus to bind to and penetrate the host cell. NA removes terminal sialic acid residues from glycan chains on host cell and viral surface proteins, which prevents viral aggregation and facilitates virus mobility. Currently, 16 HA (H1-H16) and 9 NA (N1-N9) subtypes are recognized. Each type A influenza virus presents one type of HA and one type of NA glycoprotein. Generally, each subtype exhibits species specificity; for example, all HA and NA subtypes are known to infect birds, while only subtypes H1, H2, H3, H5, H7, H9, H10, N1, N2, N3 and N7 have been shown to infect humans (Horimoto 2006; Suzuki 2005). Influenza viruses comprising H5, H7 and H9 are considered the most highly pathogenic forms of influenza A viruses, and are most likely to cause future pandemics.

[0005]Influenza pandemics are usually caused by highly transmittable and virulent influenza viruses, and can lead to elevated levels of illness and death globally. The emergence of new influenza A subtypes resulted in 4 major pandemics in the 20^th century. The Spanish flu, caused by an H1N1 virus, in 1918-1919 led to the deaths of over 50 million people worldwide between 1917 and 1920. Presently, the risk of the emergence of a new subtype, or of the transmission to humans of a subtype endemic in animals, is always present. Of particular concern is a highly virulent form of avian influenza (also called "bird flu"), outbreaks of which have been reported in several countries around the world. In many cases, this bird flu can result in mortality rates approaching 100% within 48 hours. The spread of the avian influenza virus (H5N1), first identified in Hong Kong in 1997, to other Asian countries and Europe has been postulated to be linked to the migratory patterns of wild birds.

[0006]The current method of combating influenza in humans is by annual vaccination. The vaccine is usually a combination of several strains that are predicted to be the dominant strains for the coming "flu-season". The prediction is coordinated by the World Health Organization. Generally, the number of vaccine doses produced each year is not sufficient to vaccinate the world's population. For example, Canada and the United-States obtain enough vaccines doses to immunize about one third of their population, while only 17% of the population of the European Union can be vaccinated. It is evident that current worldwide production of influenza vaccine would be insufficient in the face of a worldwide flu pandemic. Even if the necessary annual production could somehow be met in a given year, the dominant strains change from year to year, thus stockpiling at low-need times in the year is not practical. Economical, large scale production of an effective influenza vaccine is of significant interest to government and private industry alike.

[0007]The viral stocks for use in vaccines are produced in fertilized eggs. The virus particles are harvested, and for an inactivated viral vaccine, disrupted by detergent to inactivate. Live attenuated vaccines are made of influenza viruses that were adapted for growth at low temperature which means that at normal body temperature, the vaccine is attenuated. Such a vaccine is licensed in USA for use in individuals from 5 to 49 years of age. Inactivated whole virus vaccines are rendered harmless by inactivation with chemical agents and they have been produced in embryonic eggs or mammalian cell culture. All these types of vaccine show some specific advantages and disadvantages. One advantage of vaccines derived from whole viruses is the type of immunity induced by such vaccines. In general, split vaccines induce a strong antibody response while vaccines made of whole viruses induce both an antibody (humoral) and cellular response. Even though a functional antibody response is a criterion for licensure that correlates with protection induced by a vaccine, there is increasing evidence that a T-cell response is also important in influenza immunity--this may also provide better protection in the elderly.

[0008]In order to induce a cellular immune response, vaccines made of whole viruses were developed. Due to the high pathogenicity of the influenza strain (e.g. H5N1), these vaccines are produced in BL3+ facility. For highly pathogenic influenza strains such as H5N1, some manufacturers have modified the hemagglutinin gene sequence in order to reduce the pathogenicity of the influenza strain and to make it avirulent and more easily produced in embryonic eggs or mammalian cell culture. Others also use reassortant influenza strains in which the genetic sequences for the hemagglutinin and neuraminidase proteins are cloned in a high-yielding low pathogenic influenza donor strain (A/PR/8/34; Quan F-S et al, 2007). While these methods may produce useful vaccines, they do not provide a solution to the need for high-volume, low cost and fast production of vaccines in the scale necessary to meet the global need in a normal year, and would almost certainly be insufficient in the face of a pandemic.

[0009]Using this reverse genetic technology, one might also need to mutate the genetic sequence of the HA protein to make it avirulent. For highly pathogenic influenza strains, the production of whole virus vaccines either requires confinement procedures or the resulting vaccines do not exactly match the genetic sequence of the circulating virus. In the case of live-attenuated vaccines, there is still a risk that the administered vaccine can recombine with an influenza virus from the host, leading to a new influenza virus.

[0010]While this method maintains the antigenic epitope and post-translational modifications, there are a number of drawbacks to this method, including the risk of contamination due to the use of whole virus and variable yields depending on virus strain. Sub-optimal levels of protection may result from genetic heterogeneity in the virus due to its introduction into eggs. Other disadvantages includes extensive planning for obtaining eggs, contamination risks due to chemicals used in purification, and long production times. Also, persons hypersensitive to egg proteins may not be eligible candidates for receiving the vaccine.

[0011]In the case of a pandemic, split vaccine production is limited by the need to adapt the strain for growth in eggs and the variable production yields achieved. Although this technology has been used for years for the production of seasonal vaccines, it can hardly respond in a reasonable timeframe to a pandemic and worldwide manufacturing capacity is limited.

[0012]To avoid the use of eggs, influenza viruses have also been produced in mammalian cell culture, for example in MDCK or PERC.6 cells, or the like. Another approach is reverse genetics, in which viruses are produced by cell transformation with viral genes. These methods, however, also requires the use of whole virus as well as elaborate methods and specific culture environments.

[0013]Several recombinant products have been developed as recombinant influenza vaccine candidates. These approaches have focused on the expression, production, and purification of influenza type A HA and NA proteins, including expression of these proteins using baculovirus infected insect cells (Crawford et al, 1999; Johansson, 1999), viral vectors, and DNA vaccine constructs (Olsen et al., 1997).

[0014]Specifics of an influenza virus infection are well known. Briefly, the infectious cycle is initiated by the attachment of the virion surface HA protein to a sialic acid-containing cellular receptor (glycoproteins and glycolipids). The NA protein mediates processing of the sialic acid receptor, and virus penetration into the cell depends on HA-dependent receptor-mediated endocytosis. In the acidic confines of internalized endosomes containing an influenza virion, the HA protein undergoes conformational changes that lead to fusion of viral and cell membranes and virus uncoating and M2-mediated release of MI proteins from nucleocapsid-associated ribonucleoproteins (RNPs), which migrate into the cell nucleus for viral RNA synthesis. Antibodies to HA proteins prevent virus infection by neutralizing virus infectivity, whereas antibodies to NA proteins mediate their effect on the early steps of viral replication.

[0015]Crawford et al. (1999) disclose expression of influenza HA in baculovirus infected insect cells. The expressed proteins are described as being capable of preventing lethal influenza disease caused by avian H5 and H7 influenza subtypes. Johansson et al. (1999) teach that baculovirus-expressed influenza HA and NA proteins induce immune responses in animals superior to those induced by a conventional vaccine. Immunogenicity and efficacy of baculovirus-expressed hemagglutinin of equine influenza virus was compared to a homologous DNA vaccine candidate (Olsen et al., 1997). Collectively, these data demonstrate that a high degree of protection against influenza virus challenge can be induced with recombinant HA or NA proteins, using various experimental approaches and in different animal models.

[0016]Since previous research has shown that the surface influenza glycoproteins, HA and NA, are the primary targets for elicitation of protective immunity against influenza virus and that M1 provides a conserved target for cellular immunity to influenza, a new vaccine candidate may include these viral antigens as a protein macromolecular particle, such as virus-like particles (VLPs). As vaccine products, VLPs offer the advantage of being more immunogenic than subunit or recombinant antigens and are able to stimulate both humoral and cellular immune response (Grgacic and Anderson, 2006). Further, the particle with these influenza antigens may display conformational epitopes that elicit neutralizing antibodies to multiple strains of influenza viruses.

[0017]Production of a non-infectious influenza virus strain for vaccine purposes is one way to avoid inadvertent infection. Alternatively, virus-like particles (VLPs) as substitutes for the cultured virus have been investigated. VLPs mimic the structure of the viral capsid, but lack a genome, and thus cannot replicate or provide a means for a secondary infection.

[0018]Several studies have demonstrated that recombinant influenza proteins self-assemble into VLPs in cell culture using mammalian expression plasmids or baculovirus vectors (Gomez-Puertas et al., 1999; Neumann et al., 2000; Latham and Galarza, 2001). Gomez-Puertas et al. (1999) discloses that efficient formation of influenza VLP depends on the expression levels of several viral proteins. Neumann et al. (2000) established a mammalian expression plasmid-based system for generating infectious influenza virus-like particles entirely from cloned cDNAs. Latham and Galarza (2001) reported the formation of influenza VLPs in insect cells infected with recombinant baculovirus co-expressing HA, NA, M1, and M2 genes. These studies demonstrated that influenza virion proteins may self-assemble upon co-expression in eukaryotic cells.

[0019]Gomez-Puertas et al. (2000) teach that, in addition to the hemagglutinin (HA), the matrix protein (M1) of the influenza virus is essential for VLP budding from insect cells. However, Chen et al. (2007) teach that M1 might not be required for VLP formation, and observed that efficient release of M1 and VLPs required the presence of HA and sialidase activity provided by NA. The NA cleaves the sialic acids of the glycoproteins at the surface of the cells producing the VLPs, and releasing the VLPs in the medium.

[0020]Quan et al 2007 teaches that a VLP vaccine produced in a baculovirus expression system (insect cell) induces a protective immunity against some strains of influenza virus (A/PR8/34 (H1N1)). The VLPs studied by Quan were observed to bud from the plasma membrane, and were considered to be of the correct size and morphology, similar to those obtained in a mammalian system (MDCK cells).

[0021]PCT Publications WO 2004/098530 and WO 2004/098533 teach expression of Newcastle Disease Virus HN or Avian Influenza A/turkey/Wisconsin/68 (H5N9) in transformed NT-1 (tobacco) cells in culture. Compositions comprising the plant cell culture-expressed polypeptides elicit varying immune responses in rabbits and chickens.

[0022]Enveloped viruses may obtain their lipid envelope when `budding` out of the infected cell and obtain the membrane from the plasma membrane, or from that of an internal organelle. Influenza virus particles and VLPs bud from the plasma membrane of the host cell. In mammalian or baculovirus cell systems, for example, influenza buds from the plasma membrane (Quan et al 2007). Only a few enveloped viruses are known to infect plants (for example, members of the Topoviruses and Rhabdoviruses). Of the known plant enveloped viruses, they are characterized by budding from internal membranes of the host cell, and not from the plasma membrane. Although a small number of recombinant VLPs have been produced in plant hosts, none were derived from the plasma membrane, raising the question whether plasma membrane-derived VLPs, including influenza VLPs can be produced in plants.

[0023]Current influenza VLP production technologies rely on the co-expression of multiple viral proteins, and this dependence represents a drawback of these technologies since in case of a pandemic and of yearly epidemics, response time is crucial for vaccination. A simpler VLP production system, for example, one that relies on the expression of only one or a few viral proteins without requiring expression of non-structural viral proteins is desirable to accelerate the development of vaccines.

[0024]In order to protect the world population from influenza and to stave off future pandemics, vaccine manufacturers will need to develop effective, rapid methods producing vaccine doses. The current use of fertilized eggs to produce vaccines is insufficient and involves a lengthy process.

SUMMARY OF THE INVENTION

[0025]It is an object of the invention to provide improved influenza virus like particles (VLPs).

[0026]According to the present invention there is provided a nucleic acid comprising a nucleotide sequence encoding an antigen from an enveloped virus operatively linked to a regulatory region active in a plant. The antigen may be an influenza hemagglutinin (HA).

[0027]The HA may comprise a native, or a non-native signal peptide; the non-native signal peptide may be a protein disulfide isomerase signal peptide.

[0028]The HA encoded by the nucleic acid may be a type A influenza, a type B influenza, or is a subtype of type A influenza, selected from the group comprising H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, and H16. In some aspects of the invention, the HA encoded by the nucleic acid may be from a type A influenza, and selected from the group comprising H1, H2, H3, H5, H6, H7 and H9.

[0029]The present invention also provides a method of producing influenza virus like particles (VLPs) in a plant comprising: [0030]a) introducing a nucleic acid encoding an antigen from an enveloped virus, for example an influenza hemagglutinin (HA), operatively linked to a regulatory region active in the plant, into the plant, or portion thereof, and [0031]b) incubating the plant or a portion therefore under conditions that permit the expression of the nucleic acid, thereby producing the VLPs.

[0032]The method may further comprise the steps of harvesting the plant and purifying or separating the VLPs from the plant tissue.

[0033]The method may further comprise, in the step of introducing (step a), a nucleic acid comprising a nucleotide sequence encoding on e or more than one chaperon protein.

[0034]The one or more than one chaperone proteins may be selected from the group comprising Hsp40 and Hsp70.

[0035]The present invention includes the above method wherein, in the step of introducing (step a), the nucleic acid may be either transiently expressed in the plant, or stably expressed in the plant. Furthermore, the VLPs may be purified using size exclusion chromatography.

[0036]According to another aspect of the present invention, there is provided a method of producing influenza virus like particles (VLPs) in a plant comprising providing a plant, or a portion of a plant, comprising a nucleic acid comprising a nucleotide sequence encoding an antigen from an enveloped virus operatively linked to a regulatory region active in a plant, and incubating the plant or portion of the plant under conditions that permit the expression of the nucleic acid, thereby producing the VLPs.

[0037]The method may further comprise the steps of harvesting the plant and purifying or separating the VLPs from the plant tissue.

[0038]The present invention includes the above method, wherein following the step of providing, a nucleic acid comprising a nucleotide sequence encoding one or more than one chaperone protein operatively linked to a regulatory region active in a plant is introduced, and the plant or portion of the plant incubated under conditions that permit expression of the nucleic acid, thereby producing the VLPs.

[0039]The one or more than one chaperone proteins may be selected from the group comprising Hsp40 and Hsp70.

[0040]The present invention includes the above method wherein, in the step of introducing (step a), the nucleic acid encoding the HA is stably expressed in the plant. Furthermore, the VLPs may be purified using size exclusion chromatography.

[0041]The present invention also provides a virus like particle (VLP) comprising an influenza virus HA protein and one or more than one lipid derived from a plant.

[0042]The HA protein of the VLP may be of a type A influenza, a type B influenza, or is a subtype of type A influenza HA selected from the group consisting of H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, and H16. In some aspects of the invention, the HA is from a type A influenza, selected from the group comprising H1, H2, H3, H5, H6, H7 and H9.

[0043]Also included in the present invention is a composition comprising an effective dose of a VLP, the VLP comprising an influenza virus HA protein, one or more than one plant lipid, and a pharmaceutically acceptable carrier.

[0044]The present invention also contemplates fragments or portions of HA proteins that form VLPs in a plant.

[0045]The present invention also pertains to a VLP comprising an influenza virus HA bearing plant-specific N-glycans, or modified N-glycans. The HA protein of the VLP may be of a type A influenza, a type B influenza, or is a subtype of type A influenza HA selected from the group consisting of H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, and H16. In some aspects of the invention, the HA is from a type A influenza, selected from the group comprising H1, H2, H3, H5, H6, H7 and H9.

[0046]The VLP may comprise an HA protein of one, or more than one subtype, including H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15 or H16 or fragment or portion thereof. Examples of subtypes comprising such HA proteins include A/New Calcdonia/20/99 (H1N1)A/Indonesia/5/2006 (H5N1), A/chicken/New York/1995, A/herring gull/DE/677/88 (H2N8), A/Texas/32/2003, A/mallard/MN/33/00, A/duck/Shanghai/1/2000, A/northern pintail/TX/828189/02, A/Turkey/Ontario/6118/68 (H8N4), A/shoveler/Iran/G54/03, A/chicken/Germany/N/1949 (H10N7), A/duck/England/56 (H11N6), A/duck/Alberta/60/76 (H12N5), A/Gull/Maryland/704/77 (H13N6), A/Mallard/Gurjev/263/82, A/duck/Australia/341/83 (H15N8), A/black-headed gull/Sweden/5/99 (H16N3), B/Lee/40, C/Johannesburg/66, A/PuertoRico/8/34 (H1N1), A/Brisbane/59/2007 (H1N1), A/Solomon Islands 3/2006 (H1N1), A/Brisbane 10/2007 (H3N2), A/Wisconsin/67/2005 (H3N2), B/Malaysia/2506/2004, B/Florida/4/2006, A/Singapore/1/57 (H2N2), A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), A/Teal/HongKong/W312/97 (H6N1), A/Equine/Prague/56 (H7N7), A/HongKong/1073/99 (H9N2)).

[0047]In an aspect of the invention, the HA protein may be an H1, H2, H3, H5, H6, H7 or H9 subtype. In an another aspect, the H1 protein may be from the A/New Calcdonia/20/99 (H1N1), A/PuertoRico/8/34 (H1N1), A/Brisbane/59/2007 (H1N1), or A/Solomon Islands 3/2006 (H1N1) strain. The H3 protein may also be from the A/Brisbane 10/2007 (H3N2) or A/Wisconsin/67/2005 (H3N2) strain. In a further aspect of the invention, the H2 protein may be from the A/Singapore/1/57 (H2N2) strain. The H5 protein may be from the A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), or A/Indonesia/5/2005 strain. In an aspect of the invention, the H6 protein may be from the A/Teal/HongKong/W312/97 (H6N1) strain. The 117 protein may be from the A/Equine/Prague/56 (H7N7) strain. In an aspect of the invention, the H9 protein is from the A/HongKong/1073/99 (H9N2) strain. In a further aspect of the invention, the HA protein may be from an influenza virus may be a type B virus, including B/Malaysia/2506/2004 or B/Florida/4/2006. Examples of amino acid sequences of the HA proteins from H1, H2, H3, H5, H6, H7, H9 or B subtypes include SEQ ID NOs: 48-59.

[0048]The influenza virus HA protein may be H5 Indonesia.

[0049]The present invention also provides nucleic acid molecules comprising sequences encoding an HA protein. The nucleic acid molecules may further comprise one or more regulatory regions operatively linked to the sequence encoding an HA protein. The nucleic acid molecules may comprise a sequence encoding an H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, H16, B or C. In another aspect of the invention, the HA protein encoded by the nucleic acid molecule may be an H1, H2, H3, H5, H6, H7, H9, or B subtype. The H1 protein encoded by the nucleic acid molecule is from the A/New Calcdonia/20/99 (H1N1), A/PuertoRico/8/34 (H1N1), A/Brisbane/59/2007 (H1N1), or A/Solomon Islands 3/2006 (H1N1) strain. In an aspect of the invention, the H3 protein encoded by the nucleic acid molecule may be from the A/Brisbane 10/2007 (H3N2), or A/Wisconsin/67/2005 (H3N2) strain. In a further aspect of the invention, the H2 protein encoded by the nucleic acid molecule may be from the A/Singapore/1/57 (H2N2) strain. The H5 protein encoded by the nucleic acid molecule may also be from the A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), or A/Indonesia/5/2005 strain. In an aspect of the invention, the H6 protein encoded by the nucleic acid molecule may be from the A/Teal/HongKong/W312/97 (H6N1) strain. The H7 protein encoded by the nucleic acid molecule may also be from the A/Equine/Prague/56 (H7N7) strain. Additionally, the H9 protein encoded by the nucleic acid molecule may be from the A/HongKong/1073/99 (H9N2) strain. The HA protein from B subtype encoded by the nucleic acid may be from the B/Florida/4/2006, or B/Malaysia/2506/2004 strain. Examples of sequences of nucleic acid molecules encoding such HA proteins from H1, H12, H3, H5, H6, H7, H9 or B subtypes include SEQ ID NOs: 36-47 and 60-73.

[0050]The nucleic acid sequence may encode the influenza virus HA protein H5 Indonesia.

[0051]Regulatory regions that may be operatively linked to a sequence encoding an HA protein include those that are operative in a plant cell, an insect cell or a yeast cell. Such regulatory regions may include a plastocyanin regulatory region, a regulatory region of Ribulose 1,5-bisphosphate carboxylase/oxygenase (RuBisCO), chlorophyll a/b binding protein (CAB), ST-LS1, a polyhedrin regulatory region, or a gp64 regulatory region. Other regulatory regions include a 5' UTR, 3' UTR or terminator sequences. The plastocyanin regulatory region may be an alfalfa plastocyanin regulatory region; the 5' UTR, 3'UTR or terminator sequences may also be alfalfa sequences.

[0052]A method of inducing immunity to an influenza virus infection in a subject, is also provided, the method comprising administering the virus like particle comprising an influenza virus HA protein, one or more than one plant lipid, and a pharmaceutically acceptable carrier. The virus like particle may be administered to a subject orally, intradermally, intranasally, intramuscularly, intraperitoneally, intravenously, or subcutaneously.

[0053]The present invention also pertains to a virus like particle (VLP) comprising one or more than one protein derived from a virus selected from the group consisting of Influenza, Measles, Ebola, Marburg, and HIV, and one or more than one lipid derived from a non-sialylating host production cell. The HIV protein may be p24, gp120 or gp41; the Ebolavirus protein may be VP30 or VP35; the Marburg virus protein may be Gp/SGP; the Measles virus protein may be H-protein or F-protein.

[0054]Additionally the present invention relates to a virus like particle (VLP) comprising an influenza virus HA protein and one or more than one host lipid. For example if the host is insect, then the virus like particle (VLP) may comprise an influenza virus HA protein and one or more than one insect lipid, or if the host is a yeast, then the virus like particle (VLP) may comprise an influenza virus HA protein and one or more than one yeast lipid.

[0055]The present invention also relates to compositions comprising VLPs of two or more strains or subtypes of influenza. The two or more subtypes or strains may be selected from the group comprising: A/New Calcdonia/20/99 (H1N1)A/Indonesia/5/2006 (H5N1), A/chicken/New York/1995, A/herring gull/DE/677/88 (H2N8), A/Texas/32/2003, A/mallard/MN/33/00, A/duck/Shanghai/1/2000, A/northern pintail/TX/828189/02, A/Turkey/Ontario/6118/68 (H8N4), A/shoveler/Iran/G54/03, A/chicken/Germany/N/1949 (H10N7), A/duck/England/56 (H11N6), A/duck/Alberta/60/76 (H12N5), A/Gull/Maryland/704/77 (H13N6), A/Mallard/Gurjev/263/82, A/duck/Australia/341/83 (H15N8), A/black-headed gull/Sweden/5/99 (H16N3), B/Lee/40, C/Johannesburg/66, A/PuertoRico/8/34 (H1N1), A/Brisbane/59/2007 (H1N1), A/Solomon Islands 3/2006 (H1N1), A/Brisbane 10/2007 (H3N2), A/Wisconsin/67/2005 (H3N2), B/Malaysia/2506/2004, B/Florida/4/2006, A/Singapore/1/57 (H2N2), A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), A/Teal/HongKong/W312/97 (H6N1), A/Equine/Prague/56 (H7N7) or A/HongKong/1073/99 (H9N2)). The two or more subtypes or strains of VLPs may be present in about equivalent quantities; alternately one or more of the subtypes or strains may be the majority of the strains or subtypes represented.

[0056]The present invention pertains to a method for inducing immunity to influenza virus infection in an animal or target organism comprising administering an effective dose of a vaccine comprising one or more than one VLP, the VLP produced using a non-sialyating host, for example a plant host, an insect host, or a yeast host. The vaccine may be administered orally, intradermally, intranasally, intramusclarly, intraperitoneally, intravenously, or subcutaneously. The target organism may be selected from the group comprising humans, primates, horses, pigs, birds (avian) water fowl, migratory birds, quail, duck, geese, poultry, chicken, camel, canine, dogs, feline, cats, tiger, leopard, civet, mink, stone marten, ferrets, house pets, livestock, mice, rats, seal, whales and the like.

[0057]The present invention provides a method for producing VLPs containing hemagglutinin (HA) from different influenza strains in a suitable host capable of producing a VLP, for example, a plant, insect, or yeast. VLPs that are produced in plants contain lipids of plant origin, VLPs produced in insect cells comprise lipids from the plasma membrane of insect cells (generally referred to as "insect lipids"), and VLPs produced in yeast comprise lipids from the plasma membrane of yeast cells (generally referred to as "yeast lipids").

[0058]The present invention also pertains to a plant, plant tissue or plant cell comprising a nucleic acid comprising a nucleotide sequence encoding an antigen from an enveloped virus operatively linked to a regulatory region active in a plant. The antigen may be an influenza hemagglutinin (HA).

[0059]The plant may further comprise a nucleic acid comprising a nucleotide sequence encoding one or more than one chaperone proteins operatively linked to a regulatory region active in a plant. The one or more than one chaperon proteins may be selected from the group comprising Hsp40 and Hsp70.

[0060]The production of VLPs in plants presents several advantages over the production of these particles in insect cell culture. Plant lipids can stimulate specific immune cells and enhance the immune response induced. Plant membranes are made of lipids, phosphatidylcholine (PC) and phosphatidylethanolamine (PE), and also contain glycosphingolipids that are unique to plants and some bacteria and protozoa. Sphingolipids are unusual in that they are not esters of glycerol like PC or PE but rather consist of a long chain amino alcohol that forms an amide linkage to a fatty acid chain containing more than 18 carbons. PC and PE as well as glycosphingolipids can bind to CD1 molecules expressed by mammalian immune cells such as antigen-presenting cells (APCs) like dentritic cells and macrophages and other cells including B and T lymphocytes in the thymus and liver (Tsuji M., 2006). Furthermore, in addition to the potential adjuvant effect of the presence of plant lipids, the ability of plant N-glycans to facilitate the capture of glycoprotein antigens by antigen presenting cells (Saint-Jore-Dupas, 2007), may be advantageous of the production of VLPs in plants.

[0061]Without wishing to be bound by theory, it is anticipated that plant-made VLPs will induce a stronger immune reaction than VLPs made in other manufacturing systems and that the immune reaction induced by these plant-made VLPs will be stronger when compared to the immune reaction induced by live or attenuated whole virus vaccines.

[0062]Contrary to vaccines made of whole viruses, VLPs provide the advantage as they are non-infectious, thus restrictive biological containment is not as significant an issue as it would be working with a whole, infectious virus, and is not required for production. Plant-made VLPs provide a further advantage again by allowing the expression system to be grown in a greenhouse or field, thus being significantly more economical and suitable for scale-up.

[0063]Additionally, plants do not comprise the enzymes involved in synthesizing and adding sialic acid residues to proteins. VLPs may be produced in the absence of neuraminidase (NA), and there is no need to co-express NA, or to treat the producing cells or extract with sialidase (neuraminidase), to ensure VLP production in plants.

[0064]The VLPs produced in accordance with the present invention do not comprise M1 protein which is known to bind RNA. RNA is a contaminant of the VLP preparation and is undesired when obtaining regulatory approval for the VLP product.

[0065]This summary of the invention does not necessarily describe all features of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0066]These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings wherein:

[0067]FIG. 1A shows a sequence of an alfalfa plastocyanin-based expression cassette used for the expression of H1 from strain A/New Calcdonia/20/99 (H1N1) in accordance with an embodiment of the present invention (SEQ ID NO:8). Protein disulfide isomerase (PDI) signal peptide is underlined. BglII (AGATCT) and Sad (GAGCTC) restriction sites used for cloning are shown in bold. FIG. 1B shows a schematic diagram of functional domains of influenza hemagglutinin. After cleavage of HA0, HA1 and HA2 fragments remain bound together by a disulfide bridge.

[0068]FIG. 2A shows a representation of plasmid 540 assembled for the expression of HA subtype H1 from strain A/New Calcdonia/20/99 (H1N1). FIG. 2B shows a representation of plasmid 660 assembled for the expression of HA subtype H5 from strain A/Indonesia/5/2005 (H5N1).

[0069]FIG. 3 shows a size exclusion chromatography of protein extracts from leaves producing hemagglutinin H1 or H5. FIG. 3A show the elution profile of Blue Dextran 2000 (triangles) and proteins (diamonds). FIG. 3B shows immunodetection (western blot; anti H1) of H1 (A/New Calcdonia/20/99 (H1N1)) elution fractions following size exclusion chromatography (S500HR beads). FIG. 3C show the elution profile of H5; Blue Dextran 2000 (triangles) and proteins (diamonds). FIG. 3D shows immunodetection (western blot; anti H5) of H5 (A/Indonesia/5/2005 (H5N1)) elution fractions following size exclusion chromatography (S500HR beads).

[0070]FIG. 4A shows the sequence encoding the N terminal fragment of H1 (A/New Calcdonia/20/99 (H1N1)) (SEQ ID NO:1). FIG. 4B shows the sequence encoding the C terminal fragment of H1 (A/New Calcdonia/20/99 (H1N1)) (SEQ ID NO:2).

[0071]FIG. 5 shows the complete sequence encoding HA0 of H1 (A/New Calcdonia/20/99 (H1N1)) (SEQ ID NO:28).

[0072]FIG. 6 shows the sequence encoding H5 (A/Indonesia/5/2005 (H5N1)) flanked by a HindIII site immediately upstream of the initial ATG, and a Sad site immediately downstream of the stop (TAA) codon (SEQ ID NO:3)

[0073]FIG. 7A shows the sequence of the primer Plasto-443c (SEQ ID NO:4). FIG. 7B shows the sequence of primer SpHA(Ind)-Plasto.r (SEQ ID NO:5). FIG. 7C shows the sequence of primer Plasto-SpHA(Ind).c (SEQ ID NO:6). FIG. 7D shows the sequence of primer HA(Ind)-Sac.r (SEQ ID NO:7).

[0074]FIG. 8a shows the amino acid sequence of the H1 (A/New Calcdonia/20/99 (H1N1)) peptide sequence (SEQ ID NO:9). FIG. 8B shows the amino acid sequence of H5 (A/Indonesia/5/2005 (H5N1)) peptide sequence (SEQ ID NO:10). Native signal peptide is indicated in bold.

[0075]FIG. 9 shows the nucleotide sequence of HA of influenza A subtype H7 (SEQ ID No: 11).

[0076]FIG. 10A shows the nucleotide sequence of Influenza A HA, subtype H2 (SEQ ID NO:12). FIG. 10B shows the nucleotide sequence of Influenza A HA subtype H3 (SEQ ID NO:13). FIG. 10C shows the nucleotide sequence of Influenza A HA subtype H4 (SEQ ID NO:14). FIG. 10D shows the nucleotide sequence of Influenza A HA subtype H5 (SEQ ID NO:15). FIG. 10E shows the nucleotide sequence of Influenza A HA subtype H6 (SEQ ID NO:16). FIG. 10F shows the nucleotide sequence of Influenza A HA subtype H8 (SEQ ID NO:17). FIG. 10G shows the nucleotide sequence of Influenza A HA subtype H9 (SEQ ID NO:18). FIG. 10H shows the nucleotide sequence of Influenza A HA subtype H10 (SEQ ID NO:19). FIG. 10I shows the nucleotide sequence of Influenza A HA subtype H11 (SEQ ID NO:20). FIG. 10J shows the nucleotide sequence of Influenza A HA subtype H12 (SEQ ID NO:21). FIG. 10K shows the nucleotide sequence of Influenza A HA subtype H13 (SEQ ID NO:22). FIG. 10L shows the nucleotide sequence of Influenza A HA subtype H14 (SEQ ID NO:23). FIG. 10M shows the nucleotide sequence of Influenza A HA subtype H15 (SEQ ID NO:24). FIG. 10N shows the nucleotide sequence of Influenza A HA subtype H16 (SEQ ID NO:25). FIG. 10O shows the nucleotide sequence of Influenza B HA (SEQ ID NO:26). FIG. 10P shows the nucleotide sequence of Influenza C HA (SEQ ID NO:27). FIG. 10Q shows the nucleotide sequence of primer XmaI-pPlas.c (SEQ ID NO: 29). FIG. 10R shows the nucleotide sequence of primer SacI-ATG-pPlas.r (SEQ ID NO: 30). FIG. 10S shows the nucleotide sequence of primer SacI-PlasTer.c (SEQ ID NO: 31). FIG. 10T shows the nucleotide sequence of primer EcoRI-PlasTer.r (SEQ ID NO: 32).

[0077]FIG. 11 shows a schematic representation of several constructs as used herein. Construct 660 comprises the nucleotide sequence to encode the HA subtype H5 (A/Indonesia/5/2005 (H5N1)) under operatively linked to the plastocyanin promoter (plasto) and terminator (Pter); construct 540 comprises the nucleotide sequence to encode the HA subtype H1 (A/New Calcdonia/20/99 (H1N1)) in combination with an alfalfa protein disulfide isomerase signal peptide (SP PDI), and is operatively linked to a plastocyanin promoter (Plasto) and terminator (Pter); construct 544 assembled for the expression of HA subtype H1 (A/New Calcdonia/20/99 (H1N1)), the nucleotide sequence encoding H1 is combined with an alfalfa protein disulfide isomerase signal peptide (SP PDI) and an GCN4pII leucine zipper (in place of the transmembrane domain and cytoplasmic tail of HI) and operatively linked to the plastocyanin promoter (Plasto) and terminator (Pter); and construct 750 for the expression of M1 coding region from influenza A/PR/8/34 is combined to the tobacco etch virus (TEV) 5'UTR, and operatively linked with the double 35S promoter and Nos terminator.

[0078]FIG. 12 shows immunodetection of H5 (A/Indonesia/5/2005 (H5N1)), using anti-H5 (Vietnam) antibodies, in protein extracts from N. benthamiana leaves transformed with construct 660 (lane 3). Commercial H5 from influenza A/Vietnam/1203/2004 was used as positive control of detection (lane 1), and a protein extract from leaves transformed with an empty vector were used as negative control (lane 2).

[0079]FIG. 13 shows characterization of hemagglutinin structures by size exclusion chromatography. Protein extract from separate biomasses producing H5 (A/Indonesia/5/2005 (H5N1)), H1 (A/New Calcdonia/20/99 (H1N1)), soluble H1, or H1 and M1 were separated by gel filtration on S-500 HR. Commercial H1 (A/New Calcdonia/20/99 (H1N1)) in the form of rosettes was also fractionated (H1 rosette). FIG. 13A shows elution fractions analyzed for relative protein content (Relative Protein Level--a standard protein elution profile of a biomass fractionation is shown). Blue Dextran 2000 (2 MDa reference standard) elution peak is indicated. FIG. 13B shows elution fractions analyzed for the presence of hemagglutinin by immunoblotting with anti-H5 (Vietnam) antibodies (for H5). FIG. 13C shows elution fractions analyzed for anti-influenza A antibodies for H1. FIG. 13D shows elution fractions analyzed for anti-influenza A antibodies for soluble H1. FIG. 13E shows elution fractions analyzed for anti-influenza A antibodies for H1 rosette. FIG. 13F shows elution fractions analyzed for anti-influenza A antibodies for H1+M1.

[0080]FIG. 14 shows concentration of influenza H5 (A/Indonesia/5/2005 (H5N1)) structures by sucrose gradient centrifugation and electron microscopy examination of hemagglutinin-concentrated fractions. FIG. 14A shows characterization of fractions from sucrose density gradient centrifugation. Each fraction was analyzed for the presence of H5 by immunoblotting using anti-H5 (Vietnam) antibodies (upper panel), and for their relative protein content and hemagglutination capacity (graph). FIG. 14B shows negative staining transmission electron microscopy examination of pooled fractions 17, 18 and 19 from sucrose gradient centrifugation. The bar represents 100 nm.

[0081]FIG. 15 shows purification of influenza H5 VLPs. FIG. 15A shows Coomassie Blue stained SDS-PAGE analysis of protein content in the clarification steps--lane 1, crude extract; lane 2, pH 6-adjusted extract; lane 3, heat-treated extract; lane 4, DE-filtrated extract; the fetuin affinity purification steps: lane 5, load; lane 6, flowthrough; lane 7, elution (10× concentrated). FIG. 15B shows negative staining transmission electron microscopy examination of the purified H5 VLP sample. The bar represents 100 nm. FIG. 15 C shows isolated H5 VLP enlarged to show details of the structure. FIG. 15D shows the H5 VLP product on a Coomassie-stained reducing SDS-PAGE (lane A) and Western blot (lane B) using rabbit polyclonal antibody raised against HA from strain A/Vietnam/1203/2004 (H5N1).

[0082]FIG. 16 shows a nucleotide sequence for Influenza A virus (A/New Calcdonia/20/99 (H1N1)) hemagglutinin (HA) gene, complete cds. GenBank Accession No. AY289929 (SEQ ID NO: 33)

[0083]FIG. 17 shows a nucleotide sequence for Medicago sativa mRNA for protein disulfide isomerase. GenBank Accession No. Z11499 (SEQ ID NO: 34).

[0084]FIG. 18 shows a nucleotide sequence for Influenza A virus (A/Puerto Rico/8/34 (H1N1)) segment 7, complete sequence. GenBank Accession No. NC_--002016.1 (SEQ ID NO: 35).

[0085]FIG. 19 shows localization of VLP accumulation by positive staining transmission electron microscopy observation of H5 producing tissue. CW: cell wall, ch: chloroplast, pm: plasma membrane, VLP: virus-like particle. The bar represents 100 nm.

[0086]FIG. 20 shows induction of serum antibody responses 14 days after boost in Balb/c mice vaccinated with plant-made influenza 1-15 VLP (A/Indonesia/5/2005 (H5N1)) or recombinant soluble H5 (A/Indonesia/5/2005 (H5N1)). FIG. 20(A) Antibody responses of mice immunized through intramuscular injection. FIG. 20(B) Antibody responses of mice immunized through intranasal administration. Antibody responses were measured against inactivated whole H5N1 viruses (A/Indonesia/5/05). GMT: geometric mean titer. Values are the GMT (ln) of reciprocal end-point titers of five mice per group. Bars represent mean deviation. * p<0.05 compared to recombinant soluble 115.

[0087]FIG. 21 shows hemagglutination inhibition antibody response (HAI) 14 days after boost in Balb/c mice vaccinated with plant-made influenza H5 VLP (A/Indonesia/5/2005 (H5N1)) or recombinant soluble H5 (A/Indonesia/5/2005 (H5N1)). FIG. 21(A) Antibody responses of mice immunized through intramuscular injection. FIG. 21(B) Antibody responses of mice immunized through intranasal administration. HAI antibody responses were measured using inactivated whole H5N1 viruses (A/Indonesia/5/05). GMT: geometric mean titer. Values are the GMT (ln) of reciprocal end-point titers of five mice per group. Bars represent mean deviation. * p<0.05 and ** p<0.01 compared to recombinant soluble H5.

[0088]FIG. 22 shows the effect of adjuvant on immunogenicity of the VLPs in Balb/c mice. FIG. 22(A) Effect of alum on mice immunized through intramuscular injection.

[0089]FIG. 22(B) Effect of Chitosan on mice immunized through intranasal administration. HAI antibody responses were measured using inactivated whole H5N1 viruses (A/Indonesia/5/05). GMT: geometric mean titer. Values are the GMT (ln) of reciprocal end-point titers of five mice per group. Bars represent mean deviation. * p<0.05 compared to the corresponding recombinant soluble 115.

[0090]FIG. 23 shows antibody response to H5 VLP (A/Indonesia/5/2005 (H5N1)) administration. FIG. 23(A) Anti-Indonesia/5/05 immunoglobulin isotype in mice immunized through intramuscular administration, 30 days after boost. Values are the GMT (log₂) of reciprocal end-point titers of five mice per group. ELISA performed using whole inactivated H5N1 (A/Indonesia/5/2005) viruses as the coating agent. Bars represent mean deviation. * p<0.05, ** p<0.001 compared to the corresponding recombinant soluble H5 (A/Indonesia/5/2005 (H5N1)). FIG. 23(B) Antibody titers against whole inactivated viruses (A/Indonesia/5/2005 (H5N1) and (A/Vietnam/1194/04 (H5N1))). All groups are statistically different to negative control.

[0091]FIG. 24 shows antibody titer against homologous whole inactivated viruses (A/Indonesia/5/05), 14 days weeks after first dose (week 2), 14 days after boost (week 5) or 30 days after boost (week 7) from Balb/c mice immunized with H5 VLP (A/Indonesia/5/2005 (H5N1)). GMT: geometric mean titer. Values are the GMT (ln) of reciprocal end-point titers of five mice per group. * p<0.05 compared to recombinant soluble 115.

[0092]FIG. 25 shows in vitro cross-reactivity of serum antibodies from Balb/c mice immunized with H5 VLP (A/Indonesia/5/2005 (H5N1)) 30 days after boost. (A) Antibody titers whole inactivated viruses. (B) Hemagglutination-inhibition titers against various whole inactivated viruses. Values are the GMT (In) of reciprocal end-point titers of five mice per group. Bars represent mean deviation. All groups are statistically different to negative control. * p<0.05 compared to the corresponding recombinant soluble H5. All values less than 10 were given an arbitrary value of 5 (1.6 for ln) and are considered negative.

[0093]FIG. 26 shows efficacy of the plant made H5 VLP (A/Indonesia/5/2005 (H5N1)). (A) Survival rate of mice after challenge with 1000 LD₅₀ (4.09×10⁶ CCID₅₀) of the influenza strain A/Turkey/582/06 (H5N1) (B) Body weight of immunised mice after challenge. Values are the mean body weight of surviving mice

[0094]FIG. 27 shows origin of plant-derived influenza VLPs. (A) Polar lipid composition of purified influenza VLPs. Lipids contained in an equivalent of 40 μg of proteins, were extracted from VLP as described, separated by HP-TLC, and compared to the migration profile of lipids isolated from highly purified tobacco plasma membrane (PM). Lipid abbreviations are as following: DGDG, Digalactosyldiacylglycerol; gluCER, glucosyl-ceramide; PA, phosphatic acid; PC, phosphatidylcholine; PE, phosphatidylethanolamine; PG, phosphatidylglycerol; PI, phosphatidylinositol; PS, phosphatidylserine; SG, Steryl-glycoside. (B) Neutral lipid composition of purified influenza VLPs. Lipids contained in an equivalent of 20 μg of proteins were extracted from VLP as described, separated by HP-TLC and compared to the migration of sitosterol. (C) Immunodetection of the plasma membrane marker proton pump ATPase (PMA) in purified VLPs and highly-purified PM from tobacco leaves (PM_L) and BY2 tobacco cells (PM_BY2). Eighteen micrograms of protein were loaded in each lane.

[0095]FIG. 28 shows the sequence spanning from DraIII to SacI sites of clone 774-nucleotide sequence of A/Brisbane/59/2007 (H1N1) (SEQ ID NO: 36). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0096]FIG. 29 shows the sequence spanning from DraIII to SacI sites of clone 775-nucleotide sequence of A/Solomon Islands 3/2006 (H1N1) (SEQ ID NO: 37). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0097]FIG. 30 shows the sequence spanning from DraIII to SacI sites of clone 776-nucleotide sequence of A/Brisbane 10/2007 (H3N2) (SEQ ID NO: 38). The coding sequence is flanked by a plastocyanin regulatory region, starting with a Drain restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0098]FIG. 31 shows the sequence spanning from DraIII to Sad sites of clone 777-nucleotide sequence of A/Wisconsin/67/2005 (H3N2) (SEQ ID NO: 39). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0099]FIG. 32 shows the sequence spanning from DraIII to Sad sites of clone 778-nucleotide sequence of B/Malaysia/2506/2004 (SEQ ID NO: 40). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0100]FIG. 33 shows the sequence spanning from DraIII to Sad sites of clone 779-nucleotide sequence of B/Florida/4/2006 (SEQ ID NO: 41). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0101]FIG. 34 shows the sequence spanning from DraIII to Sad sites of clone 780-nucleotide sequence of A/Singapore/1/57 (H2N2) (SEQ ID NO: 42). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0102]FIG. 35 shows the sequence spanning from DraIII to SacI sites of clone 781-nucleotide sequence of A/Anhui/1/2005 (H5N1) (SEQ ID NO: 43). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0103]FIG. 36 shows the sequence spanning from DraIII to Sad sites of clone 782-nucleotide sequence of A/Vietnam/1194/2004 (H5N1) (SEQ ID NO: 44). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0104]FIG. 37 shows the sequence spanning from DraIII to SacI sites of clone 783-nucleotide sequence of A/Teal/HongKong/W312/97 (H6N1) (SEQ ID NO: 45). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0105]FIG. 38 shows the sequence spanning from DraIII to Sad sites of clone 784--nucleotide sequence of A/Equine/Prague/56 (H7N7) (SEQ ID NO: 46). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a SacI site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0106]FIG. 39 shows the sequence spanning from DraIII to SacI sites of clone 785--nucleotide sequence of A/HongKong/1073/99 (H9N2) (SEQ ID NO: 47). The coding sequence is flanked by a plastocyanin regulatory region, starting with a DraIII restriction site at the 5' end and by a stop codon and a Sad site at the 3' end. Restriction sites are underlined; ATG is in bold and underlined.

[0107]FIG. 40A shows the amino acid sequence (SEQ ID NO: 48) of the polypeptide translated from clone 774 (A/Brisbane/59/2007 (H1N1)). The open reading frame of clone 774 starts with the ATG indicated in FIG. 28. FIG. 40B shows the amino acid sequence (SEQ ID NO: 49) of the polypeptide translated from clone 775 (A/Solomon Islands 3/2006 (H1N1)). The open reading frame of clone 775 starts with the ATG indicated in FIG. 29.

[0108]FIG. 41A shows the amino acid sequence (SEQ ID NO: 50) of the polypeptide translated from clone 776 (A/Brisbane/10/2007 (H3N2)). The open reading frame of clone 776 starts with the ATG indicated in FIG. 30. FIG. 41B shows the amino acid sequence (SEQ ID NO: 51) of the polypeptide translated from clone 777 (A/Wisconsin/67/2005 (H3N2)). The open reading frame of clone 777 starts with the ATG indicated in FIG. 31.

[0109]FIG. 42A shows the amino acid sequence (SEQ ID NO: 52) of the polypeptide translated from clone 778 (B/Malaysia/2506/2004). The open reading frame of clone 778 starts with the ATG indicated in FIG. 32. FIG. 42B shows the amino acid sequence (SEQ ID NO: 53) of the polypeptide translated from clone 779 (B/Florida/4/2006). The open reading frame of clone 779 starts with the ATG indicated in FIG. 33.

[0110]FIG. 43A shows the amino acid sequence (SEQ ID NO: 54) of the polypeptide translated from clone 780 (A/Singapore/1/57 (H2N2)). The open reading frame of clone 780 starts with the ATG indicated in FIG. 34. FIG. 43B shows the amino acid sequence (SEQ ID NO: 55) of the polypeptide translated from clone 781 (A/Anhui/1/2005 (H5N1)). The open reading frame of clone 781 starts with the ATG indicated in FIG. 35.

[0111]FIG. 44A shows the amino acid sequence (SEQ ID NO: 56) of the polypeptide translated from clone 782 (A/Vietnam/1194/2004 (H5N1)). The open reading frame of clone 782 starts with the ATG indicated in FIG. 36. FIG. 44B shows the amino acid sequence (SEQ ID NO: 57) of the polypeptide translated from clone 783 (A/Teal/HongKong/W312/97 (H6N1)). The open reading frame of clone 783 starts with the ATG indicated in FIG. 37.

[0112]FIG. 45A shows the amino acid sequence (SEQ ID NO: 58) of the polypeptide translated from clone 784 (A/Equine/Prague/56 (H7N7)). The open reading frame of clone 784 starts with the ATG indicated in FIG. 38. FIG. 45B shows the amino acid sequence (SEQ ID NO: 59) of the polypeptide translated from clone 785 (A/HongKong/1073/99 (H9N2)). The open reading frame of clone 785 starts with the ATG indicated in FIG. 39.

[0113]FIG. 46 shows immunodetection (western blot) of elution fractions 7-17 of plant-produced VLPs, following size exclusion chromatography. The elution peak (fraction 10) of BlueDextran is indicated by the arrow. Hemagglutinin subtypes H1, H2, H3, H5, H6 and H9 are shown. Hemagglutinin is detected in fractions 7-14, corresponding to the elution of VLPs.

[0114]FIG. 47 shows an immunoblot analysis of expression of a series of hemagglutinin from annual epidemic strains. Ten and twenty micrograms of leaf protein extracts were loaded in lanes 1 and 2, respectively, for plants expressing HA from various influenza strains (indicated at the top of the immunoblots).

[0115]FIG. 48a shows an immunoblot analysis of expression of a series of H5 hemagglutinins from potential pandemic strains. Ten and twenty micrograms of protein extracts were loaded in lanes 1 and 2, respectively. FIG. 48B shows an immunoblot analysis of expression of H2, H7 and H9 hemagglutinin from selected influenza strains. Ten and twenty micrograms of protein extracts were loaded in lanes 1 and 2, respectively.

[0116]FIG. 49 shows an immunoblot of H5 from strain A/Indonesia/5/2005 in protein extracts from Nicotiana tabacum leaves, agroinfiltrated with AGL1/660. Two plants (plant 1 and plant 2) were infiltrated and 10 and 20 μg of soluble protein extracted from each plant were loaded in lanes 1 and 2, respectively.

[0117]FIG. 50 shows the in vitro cross-reactivity of serum antibodies. Hemagglutination-inhibition (HI) titers in ferret sera, 14 days (A) after 1^st immunization and (B) after 2nd boost with plant-made influenza H5 VLP (A/Indonesia/5/2005 (H5N1)). HAI antibody responses were measured using the following inactivated whole H5N1 viruses: A/turkey/Turkey/1/05, A/Vietnam/1194/04, A/Anhui/5/05 and the homologous strain A/Indonesia/5/05. Values are the GMT (log₂) of reciprocal end-point titers of five ferrets per group. Diagonal stripe--A/Indonesia/6/06 (clade 2.1.3); checked--A/turkey/Turkey/1/05 (clade 2.2); white bar--A/Vietnam/1194/04 (clade 1); black bar A/Anhui/5/05. Responders are indicated. Bars represent mean deviation.

[0118]FIG. 51 shows the nucleic acid sequence (SEQ ID NO: 60) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H5 from A/Indonesia/5/2005 (Construct #660), alfalfa plastocyanin 3' UTR and terminator sequences

[0119]FIG. 52 shows the nucleic acid sequence (SEQ ID NO: 61) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H1 from A/New Calcdonia/20/1999 (Construct #540), alfalfa plastocyanin 3' UTR and terminator sequences

[0120]FIG. 53 shows the nucleic acid sequence (SEQ ID NO: 62) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H1 from A/Brisbane/59/2007 (construct #774), alfalfa plastocyanin 3' UTR and terminator sequences.

[0121]FIG. 54 shows the nucleic acid sequence (SEQ ID NO: 63) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H1 from A/Solomon Islands/3/2006 (H1N1) (construct #775), alfalfa plastocyanin 3' UTR and terminator sequences.

[0122]FIG. 55 shows the nucleic acid sequence (SEQ ID NO: 64)of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H2 from A/Singapore/1/57 (H2N2) (construct #780), alfalfa plastocyanin 3' UTR and terminator sequences.

[0123]FIG. 56 shows the nucleic acid sequence (SEQ ID NO: 65) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H5 from A/Anhui/1/2005 (H5N1) (Construct#781), alfalfa plastocyanin 3' UTR and terminator sequences

[0124]FIG. 57 shows the nucleic acid sequence (SEQ ID NO: 66) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H5 from A/Vietnam/1194/2004 (H5N1) (Construct #782), alfalfa plastocyanin 3' UTR and terminator sequences

[0125]FIG. 58 shows the nucleic acid sequence (SEQ ID NO: 67) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H6 from A/Teal/Hong Kong/W312/97 (H6N1) (Construct #783), alfalfa plastocyanin 3' UTR and terminator sequences.

[0126]FIG. 59 shows the nucleic acid sequence (SEQ ID NO: 68) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H9 from A/Hong Kong/1073/99 (H9N2) (Construct #785), alfalfa plastocyanin 3' UTR and terminator sequences.

[0127]FIG. 60 shows the nucleic acid sequence (SEQ ID NO: 69) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H3 from A/Brisbane/10/2007 (H3N2), alfalfa plastocyanin 3' UTR and terminator sequences.

[0128]FIG. 61 shows the nucleic acid sequence (SEQ ID NO: 70) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H3 from A/Wisconsin/67/2005 (H3N2), alfalfa plastocyanin 3' UTR and terminator sequences.

[0129]FIG. 62 shows the nucleic acid sequence (SEQ ID NO: 71) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H7 from A/Equine/Prague/56 (H7N7), alfalfa plastocyanin 3' UTR and terminator sequences.

[0130]FIG. 63 shows the nucleic acid sequence (SEQ ID NO: 72) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of HA from B/Malaysia/2506/2004, alfalfa plastocyanin 3' UTR and terminator sequences.

[0131]FIG. 64 shows the nucleic acid sequence (SEQ ID NO: 73) of an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of HA from B/Florida/4/2006, alfalfa plastocyanin 3' UTR and terminator sequences.

[0132]FIG. 65 shows a consensus amino acid sequence (SEQ ID NO: 74) for HA of A/New Calcdonia/20/99 (H1N1) (encoded by SEQ ID NO: 33), A/Brisbane/59/2007 (H1N1) (SEQ ID NO: 48), A/Solomon Islands/3/2006 (H1N1) (SEQ ID NO: 49) and SEQ ID NO: 9. X1 (position 3) is A or V; X2 (position 52) is D or N; X3 (position 90) is K or R; X4 (position 99) is K or T; X5 (position 111) is Y or H; X6 (position 145) is V or T; X7 (position 154) is E or K; X8 (position 161) is R or K; X9 (position 181) is V or A; X10 (position 203) is D or N; X11 (position 205) is R or K; X12 (position 210) is T or K; X13 (position 225) is R or K; X14 (position 268) is W or R; X15 (position 283) is T or N; X16 (position 290) is E or K; X17 (position 432) is I or L; X18 (position 489) is N or D.

[0133]FIG. 66 shows amino acid sequence (SEQ ID NO: 75) of H1 New Calcdonia (AAP34324.1) encoded by SEQ ID NO: 33.

[0134]FIG. 67 shows the amino acid sequence (SEQ ID NO: 76) of H1 Puerto Rico (NC_--0409878.1) encoded by SEQ ID NO: 35

[0135]FIG. 68 shows the nucleic acid sequence of a portion of expression cassette number 828, from Pad (upstream promoter) to AscI (immediately downstream NOS terminator). CPMV HT 5'UTR sequence underlined with mutated ATG. ApaI restriction site (immediately upstream of ATG of protein coding sequence to be express, in this case C5-1 kappa light chain.)

[0136]FIG. 69 shows the nucleic acid sequence of a portion of construct number 663, from HindIII (in the multiple cloning site, upstream of the plastocyanin promoter) to EcoRI (immediately downstream of the plastocyanin terminator). H5 (from A/Indonesia/5/2005) coding sequence in fusion with PDI SP is underlined.

[0137]FIG. 70 shows the nucleic acid sequence of a portion of construct number 787, from HindIII (in the multiple cloning site, upstream of the plastocyanin promoter) to EcoRI (immediately downstream of the plastocyanin terminator). H1 (from A/Brisbane/59/2007) coding sequence in fusion with PDI SP is underlined.

[0138]FIG. 71 shows the nucleic acid sequence of a portion of construct number 790, from HindIII (in the multiple cloning site, upstream of the plastocyanin promoter) to EcoRI (immediately downstream of the plastocyanin terminator). H3 (from A/Brisbane/10/2007) coding sequence in fusion with PDI SP is underlined.

[0139]FIG. 72 shows the nucleic acid sequence of a portion of construct number 798, from HindIII (in the multiple cloning site, upstream of the plastocyanin promoter) to EcoRI (immediately downstream of the plastocyanin terminator). HA from B/Florida/4/2006 coding sequence in fusion with PDI SP is underlined.

[0140]FIG. 73 shows the nucleic acid sequence of a portion of construct number 580, from Pad (upstream of the 35S promoter) to AscI (immediately downstream of the NOS terminator). Coding sequence of H1 (from A/New Calcdonia/20/1999) in fusion with PDI SP is underlined.

[0141]FIG. 74 shows the nucleic acid sequence of a portion of construct number 685, from PacI (upstream of the 35S promoter) to AscI (immediately downstream of the NOS terminator). Coding sequence of H5 from A/Indonesia/5/2005 is underlined.

[0142]FIG. 75 shows the nucleic acid sequence of a portion of construct number 686, from Pad (upstream of the 35S promoter) to AscI (immediately downstream of the NOS terminator). Coding sequence of H5 from A/Indonesia/5/2005 in fusion with PDI SP is underlined.

[0143]FIG. 76 shows the nucleic acid sequence of a portion of construct number 732, from Pad (upstream of the 35S promoter) to AscI (immediately downstream of the NOS terminator). Coding sequence of H1 from A/Brisbane/59/2007 is underlined.

[0144]FIG. 77 shows the nucleic acid sequence of a portion of construct number 733, from Pad (upstream of the 35S promoter) to AscI (immediately downstream of the NOS terminator). Coding sequence of H1 from A/Brisbane/59/2007 in fusion with PDI SP is underlined.

[0145]FIG. 78 shows the nucleic acid sequence of a portion of construct number 735, from Pad (upstream of the 35S promoter) to AscI (immediately downstream of the NOS terminator). Coding sequence of H3 from A/Brisbane/10/2007 is underlined.

[0146]FIG. 79 shows the nucleic acid sequence of a portion of construct number 736, from Pad (upstream of the 35S promoter) to AscI (immediately downstream of the NOS terminator). Coding sequence of H3 from A/Brisbane/10/2007 in fusion with PDI SP is underlined

[0147]FIG. 80 shows the nucleic acid sequence of a portion of construct number 738, from Pad (upstream of the 35S promoter) to AscI (immediately downstream of the NOS terminator). Coding sequence of HA from B/Florida/4/2006 is underlined.

[0148]FIG. 81 shows the nucleic acid sequence of a portion of construct number 739, from Pad (upstream of the 35S promoter) to AscI (immediately downstream of the NOS terminator). Coding sequence of HA from B/Florida/4/2006 in fusion with PDI SP is underlined.

[0149]FIG. 82 shows a nucleic acid sequence encoding Msj1 (SEQ ID NO: 114).

[0150]FIG. 83 shows the nucleic acid sequence of a portion of construct number R850, from HindIII (in the multiple cloning site, upstream of the promoter) to EcoRI (immediately downstream of the NOS terminator). HSP40 coding sequence is underlined.

[0151]FIG. 84 shows the nucleic acid sequence of a portion of construct number R860, from HindIII (in the multiple cloning site, upstream of the promoter) to EcoRI (immediately downstream of the NOS terminator). HSP70 coding sequence is underlined.

[0152]FIG. 85 shows the nucleic acid sequence of a portion of construct number R870, from HindIII (in the multiple cloning site, upstream of the promoter) to EcoRI (immediately downstream of the NOS terminator). HSP40 coding sequence is in underlined italic and HSP70 coding sequence is underlined. A) nucleotides 1-5003; B) nucleotides 5004-9493.

[0153]FIG. 86 shows a schematic representation of construct R472.

[0154]FIG. 87 shows an immunoblot analysis of expression of HA using a signal peptide from alfalfa protein disulfide isomerase. Twenty micrograms of leaf protein extract obtained from 3 separate plants were loaded on the SDS-PAGE except for the H1 (A/New Calcdonia/20/99 (H1N1)) where five micrograms were used. The indicated controls (whole inactivated virus (WIV) of homologous strain)were spiked in five or twenty micrograms of mock-infiltrated plants. a) Expression of H1 from A/New Calcdonia/20/99), b) expression of H1 from A/Brisbane/59/2007, c) expression of H3 from A/Brisbane/10/2007, d) expression of H5 from A/Indonesia/5/2005, e) expression of HA from B/Florida/4/2006. The arrows indicate the immunoband corresponding to HA0. SP WT: native signal peptide, PS PDI: alfalfa PDI signal peptide.

[0155]FIG. 88 shows a comparison of HA expression strategies by immunoblot analysis of leaf protein extracts. HA was produced using plastocyanin- or CPMV-HT-based cassettes. For CPMV-HT, the wild-type HA signal peptide and the signal peptide from alfalfa PDI were also compared. Twenty micrograms of protein extract were loaded on the SDS-PAGE for HA subtype analyzed except for the H1 New Calcdonia for which five micrograms of proteins were loaded. a) Expression of H1 from A/New Calcdonia/20/1999, b) expression of H1 from A/Brisbane/59/2007, c) expression of H3 from A/Brisbane/10/2007, d) expression of H5 from A/Indonesia/5/2005, and e) expression of B from B/Florida/4/2006. The arrows indicate the immunoband corresponding to HA0; specific Agrobacterium strains comprising the specific vectors used for HA expression are indicated at the top of the lanes.

[0156]FIG. 89 shows an immunoblot of HA accumulation when co-expressed with Hsp 40 and Hsp70. H1 New Calcdonia (AGL1/540) and H3 Brisbane (AGL1/790) were expressed alone or co-expressed with AGL1/R870. HA accumulation level was evaluated by immunoblot analysis of protein extracts from infiltrated leaves. Whole inactivated virus (WIV) of strain A/New Calcdonia/20/99 or Brisbane/10/2007 were used as controls.

DETAILED DESCRIPTION

[0157]The present invention relates to the production of virus-like particles. More specifically, the present invention is directed to the production of virus-like particles comprising influenza antigens.

[0158]The following description is of a preferred embodiment.

[0159]The present invention provides a nucleic acid comprising a nucleotide sequence encoding an antigen from an enveloped virus, for example, the influenza hemagglutinin (HA), operatively linked to a regulatory region active in a plant.

[0160]Furthermore, the present invention provides a method of producing virus like particles (VLPs) in a plant. The method involves introducing a nucleic acid encoding an antigen operatively linked to a regulatory region active in the plant, into the plant, or portion of the plant, and incubating the plant or a portion of the plant under conditions that permit the expression of the nucleic acid, thereby producing the VLPs.

[0161]VLPs may be produced from influenza virus, however, VLPs may also be produced from other plasma membrane derived virus including but not limited to Measles, Ebola, Marburg, and HIV.

[0162]The invention includes VLPs of all types of influenza virus which may infect humans, including for example, but not limited to the very prevalent A (H1N1) sub-type (e.g. A/New Calcdonia/20/99 (H1N1)), the A/Indonesia/5/05 sub-type (H5N1) (SEQ ID NO: 60) and the less common B type (for example SEQ ID NO:26, FIG. 10O), and C type (SEQ ID NO:27, FIG. 10P), and to HAs obtained from other influenza subtypes. VLPs of other influenza subtypes are also included in the present invention, for example, A/Brisbane/59/2007 (H1N1; SEQ ID NO:48), A/Solomon Islands/3/2006 (H1N1; SEQ ID NO:49), A/Singapore/1/57 (H2N2; SEQ ID NO:54), A/Anhui/1/2005 (H5N1; SEQ ID NO:55), A/Vietnam/1194/2004 (H5N1; SEQ ID NO:56), A/Teal/Hong Kong/W312/97 (H6N1; SEQ ID NO:57), A/Hong Kong/1073/99 (H9N2; SEQ ID NO:59), A/Brisbane/10/2007 (H3N2; SEQ ID NO:50), A/Wisconsin/67/2005 (H3N2; SEQ ID NO:51), A/Equine/Prague/56 (H7N7; SEQ ID NO:58), B/Malaysia/2506/2004 (SEQ ID NO:52), or B/Florida/4/2006 (SEQ ID NO:53).

[0163]The present invention also pertains to influenza viruses which infect other mammals or host animals, for example humans, primates, horses, pigs, birds, avian water fowl, migratory birds, quail, duck, geese, poultry, chicken, camel, canine, dogs, feline, cats, tiger, leopard, civet, mink, stone marten, ferrets, house pets, livestock, mice, rats, seal, whale and the like.

[0164]Non limiting examples of other antigens that may be expressed in plasma membrane derived viruses include, the Capsid protein of HIV-p24; gp120, gp41-envelope proteins, the structural proteins VP30 and VP35; Gp/SGP (a glycosylated integral membrane protein) of Filoviruses, for example Ebola or Marburg, or the H protein, and F protein of Paramyxoviruses, for example, Measles.

[0165]The invention also includes, but is not limited to, influenza derived VLPs that obtain a lipid envelope from the plasma membrane of the cell in which the VLP proteins are expressed. For example, if the VLP is expressed in a plant-based system, the VLP may obtain a lipid envelope from the plasma membrane of the cell.

[0166]Generally, the term "lipid" refers to a fat-soluble (lipophilic), naturally-occurring molecules. The term is also used more specifically to refer to fatty-acids and their derivatives (including tri-, di-, and monoglycerides and phospholipids), as well as other fat-soluble sterol-containing metabolites or sterols. Phospholipids are a major component of all biological membranes, along with glycolipids, sterols and proteins. Examples of phospholipids include phosphatidylethanolamine, phosphatidylcholine, phosphatidylinositol, phosphatidylserine, phosphatidylglycerol and the like. Examples of sterols include zoosterols (for example, cholesterol) and phytosterols (for example, sitosterol) and steryl-glucoside. Over 200 phytosterols have been identified in various plant species, the most common being campesterol, stigmasterol, ergosterol, brassicasterol, delta-7-stigmasterol, delta-7-avenasterol, daunosterol, sitosterol, 24-methylcholesterol, cholesterol or beta-sitosterol. As one of skill in the art would understand, the lipid composition of the plasma membrane of a cell may vary with the culture or growth conditions of the cell or organism from which the cell is obtained.

[0167]Cell membranes generally comprise lipid bilayers, as well as proteins for various functions. Localized concentrations of particular lipids may be found in the lipid bilayer, referred to as `lipid rafts`. Without wishing to be bound by theory, lipid rafts may have significant roles in endo and exocytosis, entry or egress of viruses or other infectious agents, inter-cell signal transduction, interaction with other structural components of the cell or organism, such as intracellular and extracellular matrices.

[0168]With reference to influenza virus, the term "hemagglutinin" or "HA" as used herein refers to a glycoprotein found on the outside of influenza viral particles. HA is a homotrimeric membrane type I glycoprotein, generally comprising a signal peptide, an HAI domain, and an HA2 domain comprising a membrane-spanning anchor site at the C-terminus and a small cytoplasmic tail (FIG. 1B). Nucleotide sequences encoding HA are well known and are available--see, for example, the BioDefence Public Health base (Influenza Virus; see URL: biohealthbase.org) or National Center for Biotechnology Information (see URL: ncbi.nlm.nih.gov), both of which are incorporated herein by reference.

[0169]The term "homotrimer" or "homotrimeric" indicates that an oligomer is formed by three HA protein molecules. Without wishing to be bound by theory, HA protein is synthesized as monomeric precursor protein (HA0) of about 75 kDa, which assembles at the surface into an elongated trimeric protein. Before trimerization occurs, the precursor protein is cleaved at a conserved activation cleavage site (also referred to as fusion peptide) into 2 polypeptide chains, HA1 and HA2 (comprising the transmembrane region), linked by a disulfide bond. The HAI segment may be 328 amino acids in length, and the HA2 segment may be 221 amino acids in length. Although this cleavage may be important for virus infectivity, it may not be essential for the trimerization of the protein. Insertion of HA within the endoplasmic reticulum (ER) membrane of the host cell, signal peptide cleavage and protein glycosylation are co-translational events. Correct refolding of HA requires glycosylation of the protein and formation of 6 intra-chain disulfide bonds. The HA trimer assembles within the cis- and trans-Golgi complex, the transmembrane domain playing a role in the trimerization process. The crystal structures of bromelain-treated HA proteins, which lack the transmembrane domain, have shown a highly conserved structure amongst influenza strains. It has also been established that HA undergoes major conformational changes during the infection process, which requires the precursor HA0 to be cleaved into the 2 polypeptide chains HA1 and HA2. The HA protein may be processed (i.e., comprise HA1 and HA2 domains), or may be unprocessed (i.e. comprise the HA0 domain).

[0170]The present invention pertains to the use of an HA protein comprising the transmembrane domain and includes HA1 and HA2 domains, for example the HA protein may be HA0, or processed HA comprising HA1 and HA2. The HA protein may be used in the production or formation of VLPs using a plant, or plant cell, expression system.

[0171]The HA of the present invention may be obtained from any subtype. For example, the HA may be of subtype H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, H16 or of influenza type B. The recombinant HA of the present invention may also comprise an amino acid sequence based on the sequence any hemagglutinin known in the art-see, for example, the BioDefence Public Health base (Influenza Virus; see URL: biohealthbase.org) or National Center for Biotechnology Information (see URL: ncbi.nlm.nih.gov). Furthermore, the HA may be based on the sequence of a hemagglutinin that is isolated from one or more emerging or newly-identified influenza viruses.

[0172]The present invention also includes VLPs that comprise HAs obtained from one or more than one influenza subtype. For example, VLPs may comprise one or more than one HA from the subtype H1 (encoded by SEQ ID NO:28), H2 (encoded by SEQ ID NO:12), H3 (encoded by SEQ ID NO:13), H4 (encoded by SEQ ID NO:14), H5 (encoded by SEQ ID NO:15), H6 (encoded by SEQ ID NO:16), H17 (encoded by SEQ ID NO:11), H8 (encoded by SEQ ID NO:17), H9 (encoded by SEQ ID NO:18), H10 (encoded by SEQ ID NO:19), H11 (encoded by SEQ ID NO:20), H12 (encoded by SEQ ID NO:21), H13 (encoded by SEQ ID NO:27), H14 (encoded by SEQ ID NO:23), H15 (encoded by SEQ ID NO:24), H16 (encoded by SEQ ID NO:25), or influenza type B (encoded by SEQ ID NO: 26), or a combination thereof. One or more that one HA from the one or more than one influenza subtypes may be co-expressed within a plant or insect cell to ensure that the synthesis of the one or more than one HA results in the formation of VLPs comprising a combination of HAs obtained from one or more than one influenza subtype. Selection of the combination of HAs may be determined by the intended use of the vaccine prepared from the VLP. For example a vaccine for use in inoculating birds may comprise any combination of HA subtypes, while VLPs useful for inoculating humans may comprise subtypes one or more than one of subtypes H1, H2, H3, H5, H7, H9, H10, N1, N2, N3 and N7. However, other HA subtype combinations may be prepared depending upon the use of the inoculum.

[0173]Therefore, the present invention is directed to a VLP comprising one or more than one HA subtype, for example two, three, four, five, six, or more HA subtypes.

[0174]The present invention also provides for nucleic acids encoding hemagglutinins that form VLPs when expressed in plants.

[0175]Exemplary nucleic acids may comprise nucleotide sequences of hemagglutinin from selected strains of influenza subtypes. For example, an A (H1N1) sub-type such as A/New Calcdonia/20/99 (H1N1) (SEQ ID NO: 33), the A/Indonesia/5/05 sub-type (H5N1) (comprising construct #660; SEQ ID NO: 60) and the less common B type (for example SEQ ID NO:26, FIG. 10O), and C type (SEQ ID NO:27, FIG. 10P), and to HAs obtained from other influenza subtypes. VLPs of other influenza subtypes are also included in the present invention, for example, A/Brisbane/59/2007 (H1N1; SEQ ID NO:36), A/Solomon Islands/3/2006 (H1N1; SEQ ID NO:37), A/Singapore/1/57 (H2N2; SEQ ID NO:42), A/Anhui/1/2005 (H5N1; SEQ ID NO:43), A/Vietnam/1194/2004 (H5N1; SEQ ID NO:44), A/Teal/Hong Kong/W312/97 (H6N1; SEQ ID NO:45), A/Hong Kong/1073/99 (H9N2; SEQ ID NO:47), A/Brisbane/10/2007 (H3N2; SEQ ID NO:38), A/Wisconsin/67/2005 (H3N2; SEQ ID NO:39), A/Equine/Prague/56 (H7N7; SEQ ID NO:46), B/Malaysia/2506/2004 (SEQ ID NO:40), or B/Florida/4/2006 (SEQ ID NO:41).

[0176]Correct folding of the hemagglutinins may be important for stability of the protein, formation of multimers, formation of VLPs and function of the HA (ability to hemagglutinate), among other characteristics of influenza hemagglutinins. Folding of a protein may be influenced by one or more factors, including, but not limited to, the sequence of the protein, the relative abundance of the protein, the degree of intracellular crowding, the availability of cofactors that may bind or be transiently associated with the folded, partially folded or unfolded protein, the presence of one or more chaperone proteins, or the like.

[0177]Heat shock proteins (Hsp) or stress proteins are examples of chaperone proteins, which may participate in various cellular processes including protein synthesis, intracellular trafficking, prevention of misfolding, prevention of protein aggregation, assembly and disassembly of protein complexes, protein folding, and protein disaggregation. Examples of such chaperone proteins include, but are not limited to, Hsp60, Hsp65, Hsp 70, Hsp90, Hsp100, Hsp20-30, Hsp10, Hsp100-200, Hsp100, Hsp90, Lon, TF55, FKBPs, cyclophilins, ClpP, GrpE, ubiquitin, calnexin, and protein disulfide isomerases. See, for example, Macario, A. J. L., Cold Spring Harbor Laboratory Res. 25:59-70. 1995; Parsell, D. A. & Lindquist, S. Ann. Rev. Genet. 27:437-496 (1993); U.S. Pat. No. 5,232,833. In some examples, a particular group of chaperone proteins includes Hsp40 and Hsp70.

[0178]Examples of Hsp70 include Hsp72 and Hsc73 from mammalian cells, DnaK from bacteria, particularly mycobacteria such as Mycobacterium leprae, Mycobacterium tuberculosis, and Mycobacterium bovis (such as Bacille-Calmette Guerin: referred to herein as Hsp71). DnaK from Escherichia coli, yeast, and other prokaryotes, and BiP and Grp78 from eukaryotes, such as A. thaliana (Lin et al. 2001 (Cell Stress and Chaperones 6:201-208). A particular example of an Hsp70 is A. thaliana Hsp70 (encoded by SEQ ID NO: 122, or SEQ ID NO: 123). Hsp70 is capable of specifically binding ATP as well as unfolded polypeptides and peptides, thereby participating in protein folding and unfolding as well as in the assembly and disassembly of protein complexes.

[0179]Examples of Hsp40 include DnaJ from prokaryotes such as E. coli and mycobacteria and HSJ1, HDJ1 and Hsp40 from eukaryotes, such as alfalfa (Frugis et al., 1999. Plant Molecular Biology 40:397-408). A particular example of an Hsp40 is M. sativa MsJ1 (encoded by SEQ ID NO: 121, 123 or 114). Hsp40 plays a role as a molecular chaperone in protein folding, thermotolerance and DNA replication, among other cellular activities.

[0180]Among Hsps, Hsp70 and its co-chaperone, Hsp40, are involved in the stabilization of translating and newly synthesized polypeptides before the synthesis is complete. Without wishing to be bound by theory, Hsp40 binds to the hydrophobic patches of unfolded (nascent or newly transferred) polypeptides, thus facilitating the interaction of Hsp70-ATP complex with the polypeptide. ATP hydrolysis leads to the formation of a stable complex between the polypeptide, Hsp70 and ADP, and release of Hsp40. The association of Hsp70-ADP complex with the hydrophobic patches of the polypeptide prevents their interaction with other hydrophobic patches, preventing the incorrect folding and the formation of aggregates with other proteins (reviewed in Hartl, FU. 1996. Nature 381:571-579).

[0181]Again, without wishing to be bound by theory, as protein production increases in a recombinant protein expression system, the effects of crowding on recombinant protein expression may result in aggregation and/or reduced accumulation of the recombinant protein resulting from degradation of misfolded polypeptide. Native chaperone proteins may be able to facilitate correct folding of low levels of recombinant protein, but as the expression levels increase, native chaperones may become a limiting factor. High levels of expression of hemagglutinin in the agroinfiltrated leaves may lead to the accumulation of hemagglutinin polypeptides in the cytosol, and co-expression of one or more than one chaperone proteins such as Hsp70, Hsp40 or both Hsp70 and Hsp40 may increase stability in the cytosol of the cells expressing the polypeptides cells, thus reducing the level of misfolded or aggregated hemagglutinin polypeptides, and increasing the number of polypeptides accumulate as stable hemagglutinin, exhibiting tertiary and quaternary structural characteristics that allow for hemagglutination and/or formation of virus-like particles.

[0182]Therefore, the present invention also provides for a method of producing influenza VLPs in a plant, wherein a first nucleic acid encoding an influenza HA is co-expressed with a second nucleic acid encoding a chaperone. The first and second nucleic acids may be introduced to the plant in the same step, or may be introduced to the plant sequentially. The present invention also provides for a method of producing influenza VLPs in a plant, where the plant comprises the first nucleic acid, and the second nucleic acid is subsequently introduced.

[0183]The present invention also provides for a plant comprising a nucleic acid encoding one, or more than one influenza hemagglutinin and a nucleic acid encoding one or more than one chaperones.

[0184]Processing of an N-terminal signal peptide (SP) sequence during expression and/or secretion of influenza hemagglutinins has been proposed to have a role in the folding process. The term "signal peptide" refers generally to a short (about 5-30 amino acids) sequence of amino acids, found generally at the N-terminus of a hemagglutinin polypeptide that may direct translocation of the newly-translated polypeptide to a particular organelle, or aid in positioning of specific domains of the polypeptide. The signal peptide of hemagglutinins target the translocation of the protein into the endoplasmic reticulum and have been proposed to aid in positioning of the N-terminus proximal domain relative to a membrane-anchor domain of the nascent hemagglutinin polypeptide to aid in cleavage and folding of the mature hemagglutinin. Removal of a signal peptide (for example, by a signal peptidase), may require precise cleavage and removal of the signal peptide to provide the mature hemagglutinin--this precise cleavage may be dependent on any of several factors, including a portion or all of the signal peptide, amino acid sequence flanking the cleavage site, the length of the signal peptide, or a combination of these, and not all factors may apply to any given sequence.

[0185]A signal peptide may be native to the hemagglutinin being expressed, or a recombinant hemagglutinin comprising a signal peptide from a first influenza type, subtype or strain with the balance of the hemagglutinin from a second influenza type, subtype or strain. For example the native SP of HA subtypes H1, H2, H3, H5, H6, H7, H9 or influenza type B may be used to express the HA in a plant system.

[0186]A signal peptide may also be non-native, for example, from a structural protein or hemagglutinin of a virus other than influenza, or from a plant, animal or bacterial polypeptide. An exemplary signal peptide is that of alfalfa protein disulfide isomerase (PDISP) (nucleotides 32-103 of Accession No. Z11499; SEQ ID NO: 34; FIG. 17; amino acid sequence MAKNVAIFGLLFSLLLLVPSQIFAEE).

[0187]The present invention also provides for an influenza hemagglutinin comprising a native, or a non-native signal peptide, and nucleic acids encoding such hemagglutinins.

[0188]Influenza HA proteins exhibit a range of similarities and differences with respect to molecular weight, isoelectric point, size, glycan complement and the like. The physico-chemical properties of the various hemagglutinins may be useful to allow for differentiation between the HAs expressed in a plant, insect cell or yeast system, and may be of particular use when more than one HA is co-expressed in a single system. Examples of such physico-chemical properties are provided in Table 1.

TABLE-US-00001 TABLE 1 Physico-chemical properties of influenza hemagglutinins AA Glycans Molecular Weight (kDA) Isoelectric point Clone No Type Influenza strains HA0 HA1 HA2 HA0 HA1 HA2 HA0 HA0¹ HA1 HA1¹ HA2 HA2¹ HA0 HA1 HA2 774 H1 A/Brisbane/59/2007 548 222 9 2 61 75 25 28 6.4 5.3 775 H1 A/Solomon 548 222 9 2 61 75 25 28 6.1 5.3 Islands/3/2006 776 H3 A/Brisbane/10/2007 550 221 12 1 62 80 25 27 8.5 5.2 777 H3 A/Wisconsin/67/2005 550 221 11 1 62 79 25 27 8.8 5.3 778 B B/Malaysia/2506/2004 570 223 12 4 62 80 24 30 8.0 4.5 779 B B/Florida/4/2006 569 223 10 3 62 77 24 29 8.0 4.5 780 H2 A/Singapore/1/57 547 222 6 2 62 71 25 28 6.0 4.9 781 H5 A/Anhui/1/2005 551 222 7 2 62 73 25 28 6.2 4.7 782 H5 A/Vietnam/1194/2004 552 222 7 2 63 74 25 28 6.4 4.8 783 H6 A/Teal/Hong 550 222 8 3 62 75 25 30 5.7 5.6 Kong/W312/97 784 H7 A/Equine/Prague/56 552 221 6 2 62 71 25 28 8.9 4.9 785 H9 A/Hong 542 199 9 2 61 75 23 26 8.4 5.3 Kong/1073/99

[0189]The present invention also includes nucleotide sequences SEQ ID NO:28; SEQ ID NO:3; SEQ ID NO:11, encoding HA from H1, H5 or H7, respectively. The present invention also includes a nucleotide sequence that hybridizes under stringent hybridisation conditions to SEQ ID NO:28; SEQ ID NO:3; SEQ ID NO:11. The present invention also includes a nucleotide sequence that hybridizes under stringent hybridisation conditions to a compliment of SEQ ID NO:28; SEQ ID NO:3; SEQ ID NO:1. These nucleotide sequences that hybridize to SEQ ID or a complement of SEQ ID encode a hemagglutinin protein that, when expressed forms a VLP, and the VLP induces production of an antibody when administered to a subject. For example, expression of the nucleotide sequence within a plant cell forms a VLP, and the VLP may be used to produce an antibody that is capable of binding HA, including mature HA, HA0, HAL or HA2 of one or more influenza types or subtypes. The VLP, when administered to a subject, induces an immune response.

[0190]The present invention also includes nucleotide sequences SEQ ID NO:12 SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, SEQ ID NO: 19, SEQ ID NO: 20, SEQ ID NO: 21, SEQ ID NO: 22, SEQ ID NO: 23, SEQ ID NO: 24, SEQ ID NO: 25, SEQ ID NO: 26, SEQ ID NO:27, SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47. The present invention also includes a nucleotide sequence that hybridizes under stringent hybridisation conditions to SEQ ID NO:12 SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, SEQ ID NO: 19, SEQ ID NO: 20, SEQ ID NO: 21, SEQ ID NO: 22, SEQ ID NO: 23, SEQ ID NO: 24, SEQ ID NO: 25, SEQ ID NO: 26, SEQ ID NO:27, SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47. The present invention also includes a nucleotide sequence that hybridizes under stringent hybridisation conditions to a compliment of SEQ ID NO:12 SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, SEQ ID NO: 19, SEQ ID NO: 20, SEQ ID NO: 21, SEQ ID NO: 22, SEQ ID NO: 23, SEQ ID NO: 24, SEQ ID NO: 25, SEQ ID NO: 26, SEQ ID NO:27, SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47. These nucleotide sequences that hybridize to SEQ ID NO:12 SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, SEQ ID NO: 19, SEQ ID NO: 20, SEQ ID NO: 21, SEQ ID NO: 22, SEQ ID NO: 23, SEQ ID NO: 24, SEQ ID NO: 25, SEQ ID NO: 26, SEQ ID NO:27, SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47 or a complement of SEQ ID NO:12 SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, SEQ ID NO: 19, SEQ ID NO: 20, SEQ ID NO: 21, SEQ ID NO: 22, SEQ ID NO: 23, SEQ ID NO: 24, SEQ ID NO: 25, SEQ ID NO: 26, SEQ ID NO:27, SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47 encode a hemagglutinin protein that, when expressed forms a VLP, and the VLP induces production of an antibody when administered to a subject. For example, expression of the nucleotide sequence within a plant cell forms a VLP, and the VLP may be used to produce an antibody that is capable of binding HA, including mature HA, HA0, HAL or HA2 of one or more influenza types or subtypes. The VLP, when administered to a subject, induces an immune response.

[0191]In some embodiments, the present invention also includes nucleotide sequences SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47, encoding HA from H1, H2, H3, H5, H7 or H9 subtypes of influenza A, or HA from type B influenza. The present invention also includes a nucleotide sequence that hybridizes under stringent hybridisation conditions to SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47. The present invention also includes a nucleotide sequence that hybridizes under stringent hybridisation conditions to a compliment of SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47. These nucleotide sequences that hybridize to SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47 or a complement of SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47 encode a hemagglutinin protein that, when expressed forms a VLP, and the VLP induces production of an antibody when administered to a subject. For example, expression of the nucleotide sequence within a plant cell forms a VLP, and the VLP may be used to produce an antibody that is capable of binding HA, including mature HA, HA0, HAL or HA2 of one or more influenza types or subtypes. The VLP, when administered to a subject, induces an immune response.

[0192]Hybridization under stringent hybridization conditions is known in the art (see for example Current Protocols in Molecular Biology, Ausubel et al., eds. 1995 and supplements; Maniatis et al., in Molecular Cloning (A Laboratory Manual), Cold Spring Harbor Laboratory, 1982; Sambrook and Russell, in Molecular Cloning: A Laboratory Manual, 3^rd edition 2001; each of which is incorporated herein by reference). An example of one such stringent hybridization conditions may be about 16-20 hours hybridization in 4×SSC at 65° C., followed by washing in 0.1×SSC at 65° C. for an hour, or 2 washes in 0.1×SSC at 65° C. each for 20 or 30 minutes. Alternatively, an exemplary stringent hybridization condition could be overnight (16-20 hours) in 50% formamide, 4×SSC at 42° C., followed by washing in 0.1×SSC at 65° C. for an hour, or 2 washes in 0.1×SSC at 65° C. each for 20 or 30 minutes, or overnight (16-20 hours), or hybridization in Church aqueous phosphate buffer (7% SDS; 0.5M NaPO₄ buffer pH 7.2; 10 mM EDTA) at 65° C., with 2 washes either at 50° C. in 0.1×SSC, 0.1% SDS for 20 or 30 minutes each, or 2 washes at 65° C. in 2×SSC, 0.1% SDS for 20 or 30 minutes each.

[0193]Additionally, the present invention includes nucleotide sequences that are characterized as having about 70, 75, 80, 85, 87, 90, 91, 92, 93 94, 95, 96, 97, 98, 99, 100% or any amount therebetween, sequence identity, or sequence similarity, with the nucleotide sequence encoding HA from H1 (SEQ ID NO:28), H5 (SEQ ID NO:3) or H7 (SEQ ID NO:11), wherein the nucleotide sequence encodes a hemagglutinin protein that when expressed forms a VLP, and that the VLP induces the production of an antibody. For example, expression of the nucleotide sequence within a plant cell forms a VLP, and the VLP may be used to produce an antibody that is capable of binding HA, including mature HA, HA0, HAL or HA2. The VLP, when administered to a subject, induces an immune response.

[0194]Additionally, the present invention includes nucleotide sequences that are characterized as having about 70, 75, 80, 85, 87, 90, 91, 92, 93 94, 95, 96, 97, 98, 99, 100% or any amount therebetween, sequence identity, or sequence similarity, with the nucleotide sequence of SEQ ID NO:12 SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, SEQ ID NO: 19, SEQ ID NO: 20, SEQ ID NO: 21, SEQ ID NO: 22, SEQ ID NO: 23, SEQ ID NO: 24, SEQ ID NO: 25, SEQ ID NO: 26, SEQ ID NO:27, SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47, wherein the nucleotide sequence encodes a hemagglutinin protein that when expressed forms a VLP, and that the VLP induces the production of an antibody. For example, expression of the nucleotide sequence within a plant cell forms a VLP, and the VLP may be used to produce an antibody that is capable of binding HA, including mature HA, HA0, HAL or HA2. The VLP, when administered to a subject, induces an immune response.

[0195]Additionally, the present invention includes nucleotide sequences that are characterized as having about 70, 75, 80, 85, 87, 90, 91, 92, 93 94, 95, 96, 97, 98, 99, 100% or any amount therebetween, sequence identity, or sequence similarity, with the nucleotide sequence of SEQ ID NO: 33, SEQ ID NO: 35, SEQ ID NO: 36, SEQ ID NO:37, SEQ ID NO:38, SEQ ID NO:39, SEQ ID NO:40, SEQ ID NO:41, SEQ ID NO:42, SEQ ID NO:43, SEQ ID NO:44, SEQ ID NO:45, SEQ ID NO:46 or SEQ ID NO:47, wherein the nucleotide sequence encodes a hemagglutinin protein that when expressed forms a VLP, and that the VLP induces the production of an antibody. For example, expression of the nucleotide sequence within a plant cell forms a VLP, and the VLP may be used to produce an antibody that is capable of binding HA, including mature HA, HA0, HAL or HA2. The VLP, when administered to a subject, induces an immune response.

[0196]Similarly, the present invention includes HAs associated with the following subtypes H1 (encoded by SEQ ID NO:28), H2 (encoded by SEQ ID NO:12), H3 (encoded by SEQ ID NO:13), H4 (encoded by SEQ ID NO:14), H5 (encoded by SEQ ID NO:15), H6 (encoded by SEQ ID NO:16), H7 (encoded by SEQ ID NO:11), H8 (encoded by SEQ ID NO:17), H9 (encoded by SEQ ID NO:18), H10 (encoded by SEQ ID NO:19), H11 (encoded by SEQ ID NO:20), H12 (encoded by SEQ ID NO:21), H13 (encoded by SEQ ID NO:27), H14 (encoded by SEQ ID NO:23), H15 (encoded by SEQ ID NO:24), H16 (encoded by SEQ ID NO:25), or influenza type B (encoded by SEQ ID NO: 26); see FIGS. 10A to 10O), and nucleotide sequences that are characterized as having from about 70 to 100% or any amount therebetween, 80 to 100% or any amount there between, 90-100% or any amount therebetween, or 95-100% or any amount therebetween, sequence identity with H1 (SEQ ID NO:28), H2 (SEQ ID NO:12), H3 (SEQ ID NO:13), H4 (SEQ ID NO:14), H5 (SEQ ID NO:15), H6 (SEQ ID NO:16), H7 (SEQ ID NO:11), H8 (SEQ ID NO:17), H9 (SEQ ID NO:18), H10 (SEQ ID NO:19), H11 (SEQ ID NO:20), H12 (SEQ ID NO:21), H13 (SEQ ID NO:27), H14 (SEQ ID NO:23), H15 (SEQ ID NO:24), H16 (SEQ ID NO:25), wherein the nucleotide sequence encodes a hemagglutinin protein that when expressed forms a VLP, and that the VLP induces the production of an antibody. For example, expression of the nucleotide sequence within a plant cell forms a VLP, and the VLP may be used to produce an antibody that is capable of binding HA, including mature HA, HA0, HAL or HA2. The VLP, when administered to a subject, induces an immune response.

[0197]An "immune response" generally refers to a response of the adaptive immune system. The adaptive immune system generally comprises a humoral response, and a cell-mediated response. The humoral response is the aspect of immunity that is mediated by secreted antibodies, produced in the cells of the B lymphocyte lineage (B cell). Secreted antibodies bind to antigens on the surfaces of invading microbes (such as viruses or bacteria), which flags them for destruction. Humoral immunity is used generally to refer to antibody production and the processes that accompany it, as well as the effector functions of antibodies, including Th2 cell activation and cytokine production, memory cell generation, opsonin promotion of phagocytosis, pathogen elimination and the like. The terms "modulate" or "modulation" or the like refer to an increase or decrease in a particular response or parameter, as determined by any of several assays generally known or used, some of which are exemplified herein.

[0198]A cell-mediated response is an immune response that does not involve antibodies but rather involves the activation of macrophages, natural killer cells (NK), antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen. Cell-mediated immunity is used generally to refer to some Th cell activation, Tc cell activation and T-cell mediated responses. Cell mediated immunity is of particular importance in responding to viral infections.

[0199]For example, the induction of antigen specific CD8 positive T lymphocytes may be measured using an ELISPOT assay; stimulation of CD4 positive T-lymphocytes may be measured using a proliferation assay. Anti-influenza antibody titres may be quantified using an ELISA assay; isotypes of antigen-specific or cross reactive antibodies may also be measured using anti-isotype antibodies (e.g. anti-IgG, IgA, IgE or IgM).Methods and techniques for performing such assays are well-known in the art.

[0200]A hemagglutination inhibition (HI, or HAI) assay may also be used to demonstrate the efficacy of antibodies induced by a vaccine, or vaccine composition can inhibit the agglutination of red blood cells (RBC) by recombinant HA. Hemagglutination inhibitory antibody titers of serum samples may be evaluated by microtiter HAI (Aymard et al 1973). Erythrocytes from any of several species may be used--e.g. horse, turkey, chicken or the like. This assay gives indirect information on assembly of the HA trimer on the surface of VLP, confirming the proper presentation of antigenic sites on HAs.

[0201]Cross-reactivity HAI titres may also be used to demonstrate the efficacy of an immune response to other strains of virus related to the vaccine subtype. For example, serum from a subject immunized with a vaccine composition of a first strain (e.g. VLPs of A/Indonesia 5/05) may be used in an HAI assay with a second strain of whole virus or virus particles (e.g. A/Vietnam/1194/2004), and the HAI titer determined.

[0202]Cytokine presence or levels may also be quantified. For example a T-helper cell response (Th1/Th2) will be characterized by the measurement of IFN-γ and IL-4 secreting cells using by ELISA (e.g. BD Biosciences OptEIA kits). Peripheral blood mononuclear cells

[0203](PBMC) or splenocytes obtained from a subject may be cultured, and the supernatant analyzed. T lymphocytes may also be quantified by fluorescence-activated cell sorting (FACS), using marker specific fluorescent labels and methods as are known in the art.

[0204]A microneutralization assay may also be conducted to characterize an immune response in a subject, see for example the methods of Rowe et al., 1973. Virus neutralization titers may be obtained several ways, including: 1) enumeration of lysis plaques (plaque assay) following crystal violet fixation/coloration of cells; 2) microscopic observation of cell lysis in culture; 3) ELISA and spectrophotometric detection of NP virus protein (correlate with virus infection of host cells)

[0205]Sequence identity or sequence similarity may be determined using a nucleotide sequence comparison program, such as that provided within DNASIS (for example, using, but not limited to, the following parameters: GAP penalty 5, #of top diagonals 5, fixed GAP penalty 10, k-tuple 2, floating gap 10, and window size 5). However, other methods of alignment of sequences for comparison are well-known in the art for example the algorithms of Smith & Waterman (1981, Adv. Appl. Math. 2:482), Needleman & Wunsch (J. Mol. Biol. 48:443, 1970), Pearson & Lipman (1988, Proc. Nat'l. Acad. Sci. USA 85:2444), and by computerized implementations of these algorithms (e.g. GAP, BESTFIT, FASTA, and BLAST), or by manual alignment and visual inspection.

[0206]The term "hemagglutinin domain" refers to a peptide comprising either the HA0 domain, or the HA 1 and HA2 domains (alternately referred to as HA1 and HA2 fragments). HA0 is a precursor of the HA1 and HA2 fragments. The HA monomer may be generally subdivided in 2 functional domains--the stem domain and the globular head, or head domain. The stem domain is involved in infectivity and pathogenicity of the virus via the conformational change it may undergo when exposed to acidic pH. The stem domain may be be further subdivided into 4 subdomains or fragments--the fusion sub-domain or peptide (a hydrophobic stretch of amino acids involved in fusion with the host membrane in the acidic pH conformational state); the stem sub-domain (may accommodate the two or more conformations), the transmembrane domain or sub-domain (TmD) (involved in the affinity of the HA for lipid rafts), and the cytoplasmic tail (cytoplasmic tail sub-domain) (Ctail) (involved in secretion of HA). The globular head is divided in 2 subdomains, the RB subdomain and the vestigial esterase domain (E). The E subdomain may be partially or fully buried and not exposed at the surface of the globular head, thus some antibodies raised against HA bind to the RB subdomain.

[0207]The term "virus like particle" (VLP), or "virus-like particles" or "VLPs" refers to structures that self-assemble and comprise structural proteins such as influenza HA protein. VLPs are generally morphologically and antigenically similar to virions produced in an infection, but lack genetic information sufficient to replicate and thus are non-infectious. In some examples, VLPs may comprise a single protein species, or more than one protein species. For VLPs comprising more than one protein species, the protein species may be from the same species of virus, or may comprise a protein from a different species, genus, subfamily or family of virus (as designated by the ICTV nomenclature). In other examples, one or more of the protein species comprising a VLP may be modified from the naturally occurring sequence. VLPs may be produced in suitable host cells including plant and insect host cells. Following extraction from the host cell and upon isolation and further purification under suitable conditions, VLPs may be purified as intact structures.

[0208]The VLPs produced from influenza derived proteins, in accordance with the present invention do not comprise M1 protein. The M1 protein is known to bind RNA (Wakefield and Brownlee, 1989) which is a contaminant of the VLP preparation. The presence of RNA is undesired when obtaining regulatory approval for the VLP product, therefore a VLP preparation lacking RNA may be advantageous.

[0209]The VLPs of the present invention may be produced in a host cell that is characterized by lacking the ability to sialylate proteins, for example a plant cell, an insect cell, fungi, and other organisms including sponge, coelenterara, annelida, arthoropoda, mollusca, nemathelminthea, trochelmintes, plathelminthes, chaetognatha, tentaculate, chlamydia, spirochetes, gram-positive bacteria, cyanobacteria, archaebacteria, or the like. See, for example Glycoforum (URL: glycoforum.gr.jp/science/word/evolution/ES-A03E.html) or Gupta et al., 1999. Nucleic Acids Research 27:370-372; or Toukach et al., 2007. Nucleic Acids Research 35:D280-D286; or URL:glycostructures.jp (Nakahara et al., 2008. Nucleic Acids Research 36:D368-D371; published online Oct. 11, 2007 doi:10.1093/NAR/gkm833). The VLPs produced as described herein do not typically comprise neuramindase (NA). However, NA may be co-expressed with HA should VLPs comprising HA and NA be desired.

[0210]A VLP produced in a plant according to some aspects of the invention may be complexed with plant-derived lipids. The VLP may comprise an HA0, HA1 or HA2 peptide. The plant-derived lipids may be in the form of a lipid bilayer, and may further comprise an envelope surrounding the VLP. The plant derived lipids may comprise lipid components of the plasma membrane of the plant where the VLP is produced, including, but not limited to, phosphatidylcholine (PC), phosphatidylethanolamine (PE), glycosphingolipids, phytosterols or a combination thereof. A plant-derived lipid may alternately be referred to as a `plant lipid`. Examples of phytosterols are known in the art, and include, for example, stigmasterol, sitosterol, 24-methylcholesterol and cholesterol--see, for example, Mongrand et al., 2004.

[0211]VLPs may be assessed for structure and size by, for example, hemagglutination assay, electron microscopy, or by size exclusion chromatography.

[0212]For size exclusion chromatography, total soluble proteins may be extracted from plant tissue by homogenizing (Polytron) sample of frozen-crushed plant material in extraction buffer, and insoluble material removed by centrifugation. Precipitation with PEG may also be of benefit. The soluble protein is quantified, and the extract passed through a Sephacryl® column. Blue Dextran 2000 may be used as a calibration standard. Following chromatography, fractions may be further analyzed by immunoblot to determine the protein complement of the fraction.

[0213]Without wishing to be bound by theory, the capacity of HA to bind to RBC from different animals is driven by the affinity of HA for sialic acids α2,3 or α2,3 and the presence of these sialic acids on the surface of RBC. Equine and avian HA from influenza viruses agglutinate erythrocytes from all several species, including turkeys, chickens, ducks, guinea pigs, humans, sheep, horses and cows; whereas human HAs will bind to erythrocytes of turkey, chickens, ducks, guina pigs, humans and sheep (see also Ito T. et al, 1997, Virology, vol 227, p 493-499; and Medeiros R et al, 2001, Virology, vol 289 p. 74-85). Examples of the species reactivity of HAs of different influenza strains is shown in Tables 2A and 2B.

TABLE-US-00002 TABLE 2A Species of RBC bound by HAs of selected seasonal influenza strains. Seasonal Strain No Origin Horse Turkey H1 A/Brisbane/59/2007 774 Human + ++ (H1N1) A/Solomon Islands/3/2006 775 Human + ++ (H1N1) H3 A/Brisbane/10/2007 776 Human + ++ (H3N2) A/Wisconsin/67/2005 777 Human + ++ (H3N2) B B/Malaysia/2506/2004 778 Human + ++ B/Florida/4/2006 779 Human + ++

TABLE-US-00003 TABLE 2B Species of RBC bound by HAs of selected pandemic influenza strains Pandemic Strain No Origin Horse Turkey H2 A/Singapore/1/57 (H2N2) 780 Human + ++ H5 A/Anhui/1/2005 781 Hu-Av ++ + (H5N1) A/Vietnam/1194/2004 782 Hu-Av ++ + (H5N1) H6 A/Teal/Hong Kong/ 783 Avian ++ + W312/97 (H6N1) H7 A/Equine/Prague/56 784 Equine ++ ++ (H7N7) H9 A/Hong Kong/1073/99 785 Human ++ + (H9N2)

[0214]A fragment or portion of a protein, fusion protein or polypeptide includes a peptide or polypeptide comprising a subset of the amino acid complement of a particular protein or polypeptide, provided that the fragment can form a VLP when expressed. The fragment may, for example, comprise an antigenic region, a stress-response-inducing region, or a region comprising a functional domain of the protein or polypeptide. The fragment may also comprise a region or domain common to proteins of the same general family, or the fragment may include sufficient amino acid sequence to specifically identify the full-length protein from which it is derived.

[0215]For example, a fragment or portion may comprise from about 60% to about 100%, of the length of the full length of the protein, or any amount therebetween, provided that the fragment can form a VLP when expressed. For example, from about 60% to about 100%, from about 70% to about 100%, from about 80% to about 100%, from about 90% to about 100%, from about 95% to about 100%, of the length of the full length of the protein, or any amount therebetween. Alternately, a fragment or portion may be from about 150 to about 500 amino acids, or any amount therebetween, depending upon the HA, and provided that the fragment can form a VLP when expressed. For example, a fragment may be from 150 to about 500 amino acids, or any amount therebetween, from about 200 to about 500 amino acids, or any amount therebetween, from about 250 to about 500 amino acids, or any amount therebetween, from about 300 to about 500 or any amount therebetween, from about 350 to about 500 amino acids, or any amount therebetween, from about 400 to about 500 or any amount therebetween, from about 450 to about 500 or any amount therebetween, depending upon the HA, and provided that the fragment can form a VLP when expressed. For example, about 5, 10, 20, 30, 40 or 50 amino acids, or any amount therebetween may be removed from the C terminus, the N terminus or both the N and C terminus of an HA protein, provided that the fragment can form a VLP when expressed.

[0216]Numbering of amino acids in any given sequence are relative to the particular sequence, however one of skill can readily determine the `equivalency` of a particular amino acid in a sequence based on structure and/or sequence. For example, if 6 N terminal amino acids were removed when constructing a clone for crystallography, this would change the specific numerical identity of the amino acid (e.g. relative to the full length of the protein), but would not alter the relative position of the amino acid in the structure.

[0217]Comparisons of a sequence or sequences may be done using a BLAST algorithm (Altschul et al., 1990. J. Mol. Biol 215:403-410). A BLAST search allows for comparison of a query sequence with a specific sequence or group of sequences, or with a larger library or database (e.g. GenBank or GenPept) of sequences, and identify not only sequences that exhibit 100% identity, but also those with lesser degrees of identity. Nucleic acid or amino acid sequences may be compared using a BLAST algorithm. Furthermore the identity between two or more sequences may be determined by aligning the sequences together and determining the % identity between the sequences. Alignment may be carried out using the BLAST Algorithm (for example as available through GenBank; URL: ncbi.nlm.nih.gov/cgi-bin/BLAST/ using default parameters: Program: blastn; Database: nr; Expect 10; filter: default; Alignment: pairwise; Query genetic Codes: Standard(1)), or BLAST2 through EMBL URL: embl-heidelberg.de/Services/index.html using default parameters: Matrix BLOSUM62; Filter: default, echofilter: on, Expect: 10, cutoff: default; Strand: both; Descriptions: 50, Alignments: 50; or FASTA, using default parameters), or by manually comparing the sequences and calculating the % identity.

[0218]The present invention describes, but is not limited to, the cloning of a nucleic acid encoding HA into a plant expression vector, and the production of influenza VLPs from the plant, suitable for vaccine production. Examples of such nucleic acids include, for example, but are not limited to, an influenza A/New Calcdonia/20/99 (H1N1) virus HA (e.g. SEQ ID NO: 61), an HA from A/Indonesia/5/05 sub-type (H5N1) (e.g. SEQ ID NO: 60), A/Brisbane/59/2007 (H1N1) (e.g. SEQ ID NO: 36, 48, 62), A/Solomon Islands/3/2006 (H1N1) (e.g. SEQ ID NO: 37, 49, 63), A/Singapore/1/57 (H2N2) (e.g. SEQ ID NO: 42, 54, 64), A/Anhui/1/2005 (H5N1) (e.g. SEQ ID NO: 43, 55, 65), A/Vietnam/1194/2004 (H5N1) (e.g. SEQ ID NO: 44, 56, 66), A/Teal/Hong Kong/W312/97 (H6N1) (e.g. SEQ ID NO: 45, 57, 67), A/Hong Kong/1073/99 (H9N2) (e.g. SEQ ID NO: 47, 59, 68), A/Brisbane/10/2007 (H3N2) (e.g. SEQ ID NO: 38, 50, 69), A/Wisconsin/67/2005 (H3N2) (e.g. SEQ ID NO: 39, 51, 70), A/Equine/Prague/56 (H7N7) (e.g. SEQ ID NO: 46, 58, 71), B/Malaysia/2506/2004 (e.g. SEQ ID NO: 40, 52, 72), B/Florida/4/2006 (e.g. SEQ ID NO: 41, 53, 73). The corresponding clone or construct numbers for these strains is provided in Table 1. Nucleic acid sequences corresponding to SEQ ID NOs: 36-47 comprise a plastocyanin upstream and operatively linked to the coding sequence of the HA for each of the types or subtypes, as illustrated in FIGS. 28-39. Nucleic acid sequences corresponding to SEQ ID NO: 60-73 comprise an HA expression cassette comprising alfalfa plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of an HA, alfalfa plastocyanin 3' UTR and terminator sequences, as illustrated in FIGS. 51-64.

[0219]The VLPs may also be used to produce reagents comprised of recombinant influenza structural proteins that self-assemble into functional and immunogenic homotypic macromolecular protein structures, including subviral influenza particles and influenza VLP, in transformed hosts cells, for example plant cells or insect cells.

[0220]Therefore, the invention provides for VLPs, and a method for producing viral VLPs in a plant expression system, from the expression of a single envelope protein. The VLPs may be influenza VLPs, or VLPs produced from other plasma membrane-derived virus including, but not limited to, Measles, Ebola, Marburg, and HIV.

[0221]Proteins from other enveloped viruses, for example but not limited to Filoviridae (e.g. Ebola virus, Marburg virus, or the like), Paramyxoviridae (e.g. Measles virus, Mumps virus, Respiratory syncytial virus, pneumoviruses, or the like), Retroviridae (e.g. Human Immunodeficiency Virus-1, Human Immunodeficiency Virus-2, Human T-Cell Leukemia Virus-1, or the like), Flaviviridae (e.g. West Nile Encephalitis, Dengue virus, Hepatitis C virus, yellow fever virus, or the like), Bunyaviridae (e.g. Hantavirus or the like), Coronaviridae (e.g. coronavirus, SARS, or the like), as would be known to those of skill in the art, may also be used. Non limiting examples of antigens that may be expressed in plasma membrane derived viruses include, the capsid protein of HIV-p24; HIV glycoproteins gp120 or gp41, Filovirus proteins including VP30 or VP35 of Ebolavirus or Gp/SGP of Marburg virus or the H protein or F protein of the Measles paramyxovirus. For example, P24 of HIV (e.g. GenBank reference gi:19172948) is the protein obtained by translation and cleavage of the gag sequence of the HIV virus genome (e.g. GenBank reference gi:9629357); gp120 and gp41 of HIV are glycoproteins obtained by translation and cleavage of the gp160 protein (e.g. GenBank reference gi:9629363), encoded by env of the HIV virus genome. VP30 of Ebolavirus (GenPept Reference gi: 55770813) is the protein obtained by translation of the vp30 sequence of the Ebolavirus genome (e.g. GenBank Reference gi:55770807); VP35 of Ebolavirus (GenPept Reference gi:55770809) is the protein obtained by translation of the vp35 sequence of the Ebolavirus genome. Gp/SGP of Marburg virus (GenPept Reference gi:296965) is the protein obtained by translation of the (sequence) of the Marburg virus genome (GenBank Reference gi:158539108). H protein (GenPept Reference gi: 9626951) is the protein of the H sequence of the Measles virus genome (GenBank Reference gi: 9626945); F protein (GenPept reference gi: 9626950) is the protein of the F sequence of the Measles virus genome.

[0222]However, other envelope proteins may be used within the methods of the present invention as would be know to one of skill in the art.

[0223]The invention, therefore, provides for a nucleic acid molecule comprising a sequence encoding HIV-p24, HIV-gp120, HIV-gp41, Ebolavirus-VP30, Ebolavirus-VP35, Marburg virus Gp/SGP, Measles virus-H protein or -F protein. The nucleic acid molecule may be operatively linked to a regulatory region active in an insect, yeast or plant cell, or in a particular plant tissue.

[0224]The present invention further provides the cloning of a nucleic acid encoding an HA, for example but not limited to, human influenza A/Indonesia/5/05 virus HA (H5N1) into a plant or insect expression vector (e.g. baculovirus expression vector) and production of influenza vaccine candidates or reagents comprised of recombinant influenza structural proteins that self-assemble into functional and immunogenic homotypic macromolecular protein structures, including subviral influenza particles and influenza VLP, in transformed plant cells or transformed insect cells.

[0225]The nucleic acid encoding the HA of influenza subtypes, for example but not limited to, A/New Calcdonia/20/99 (H1N1), A/Indonesia/5/05 sub-type (H5N1), A/Brisbane/59/2007 (H1N1), A/Solomon Islands/3/2006 (H1N1), A/Singapore/1/57 (H2N2), A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), A/Teal/Hong Kong/W312/97 (H6N1), A/Hong Kong/1073/99 (H9N2), A/Brisbane/10/2007 (H3N2), A/Wisconsin/67/2005 (H3N2), A/Equine/Prague/56 (H7N7), B/Malaysia/2506/2004, B/Florida/4/2006 may be expressed, for example, using a Baculovirus Expression System in an appropriate cell line, for example, Spodoptera frugiperda cells (e.g. Sf-9 cell line; ATCC PTA-4047). Other insect cell lines may also be used.

[0226]The nucleic acid encoding the HA may, alternately, be expressed in a plant cell, or in a plant. The nucleic acid encoding HA may be synthesized by reverse transcription and polymerase chain reaction (PCR) using HA RNA. As an example, the RNA may be isolated from human influenza A/New Calcdonia/20/99 (H1N1) virus or human influenza A/Indonesia/5/05 (H5N1) virus, or other influenza viruses e.g. A/Brisbane/59/2007 (H1N1), A/Solomon Islands/3/2006 (H1N1), A/Singapore/1/57 (H2N2), A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), A/Teal/Hong Kong/W312/97 (H6N1), A/Hong Kong/1073/99 (H9N2), A/Brisbane/10/2007 (H3N2), A/Wisconsin/67/2005 (H3N2), A/Equine/Prague/56 (H7N7), B/Malaysia/2506/2004, B/Florida/4/2006, or from cells infected with an influenza virus. For reverse transcription and PCR, oligonucleotide primers specific for HA RNA, for example but not limited to, human influenza A/New Calcdonia/20/99 (H1N1) virus HA sequences or human influenza A/Indonesia/5/05 (H5N1) virus HA0 sequences, or HA sequences from influenza subtypes A/Brisbane/59/2007 (H1N1), A/Solomon Islands/3/2006 (H1N1), A/Singapore/1/57 (H2N2), A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), A/Teal/Hong Kong/W312/97 (H6N1), A/Hong Kong/1073/99 (H9N2), A/Brisbane/10/2007 (H3N2), A/Wisconsin/67/2005 (H3N2), A/Equine/Prague/56 (H7N7), B/Malaysia/2506/2004, B/Florida/4/2006 may be used. Additionally, a nucleic acid encoding HA may be chemically synthesized using methods as would known to one of skill in the art.

[0227]The resulting cDNA copies of these genes may be cloned in a suitable expression vector as required by the host expression system. Examples of appropriate expression vectors for plants are described below, alternatively, baculovirus expression vector, for example, pFastBacl (InVitrogen), resulting in pFastBacl-based plasmids, using known methods, and information provided by the manufacturer's instructions may be used.

[0228]The present invention is further directed to a gene construct comprising a nucleic acid encoding HA, as described above, operatively linked to a regulatory element that is operative in a plant. Examples of regulatory elements operative in a plant cell and that may be used in accordance with the present invention include but are not limited to a plastocyanin regulatory region (U.S. Pat. No. 7,125,978; which is incorporated herein by reference), or a regulatory region of Ribulose 1,5-bisphosphate carboxylase/oxygenase (RuBisCO; U.S. Pat. No. 4,962,028; which is incorporated herein by reference), chlorophyll a/b binding protein (CAB; Leutwiler et al; 1986; which is incorporated herein by reference), ST-LS1 (associated with the oxygen-evolving complex of photosystem II and described by Stockhaus et al. 1987, 1989; which is incorporated herein by reference). An example of a plastocyanin regulatory region is a sequence comprising nucleotides 10-85 of SEQ ID NO: 36, or a similar region of any one of SEQ ID NOS: 37-47. A regulatory element or regulatory region may enhance translation of a nucleotide sequence to which is it operatively linked--the nucleotide sequence may encode a protein or polypeptide. Another example of a regulatory region is that derived from the untranslated regions of the Cowpea Mosaic Virus (CPMV), which may be used to preferentially translate the nucleotide sequence to which it is operatively linked. This CPMV regulatory region comprises a CMPV-HT system--see, for example, Sainsbury et al, 2008, Plant Physiology 148: 1212-1218.

[0229]If the construct is expressed in an insect cell, examples of regulatory elements operative in an insect cell include but are not limited to the polyhedrin promoter (Possee and Howard 1987. Nucleic Acids Research 15:10233-10248), the gp64 promoter (Kogan et al, 1995. J Virology 69:1452-1461) and the like.

[0230]Therefore, an aspect of the invention provides for a nucleic acid comprising a regulatory region and a sequence encoding an influenza HA. The regulatory region may be a plastocyanin regulatory element, and the influenza HA may be selected from a group of influenza strains or subtypes, comprising A/New Calcdonia/20/99 (H1N1), A/Indonesia/5/05 sub-type (H5N1), A/Brisbane/59/2007 (H1N1), A/Solomon Islands/3/2006 (H1N1), A/Singapore/1/57 (H2N2), A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), A/Teal/Hong Kong/W312/97 (H6N1), A/Hong Kong/1073/99 (H9N2), A/Brisbane/10/2007 (H3N2), A/Wisconsin/67/2005 (H3N2), A/Equine/Prague/56 (H7N7), B/Malaysia/2506/2004, B/Florida/4/2006. Nucleic acid sequences comprising a plastocyanin regulatory element and an influenza HA are exemplified herein by SEQ ID NOs: 36-47.

[0231]It is known that there may be sequence differences in the sequence of influenza hemagglutinin amino acids sequences, or the nucleic acids encoding them, when influenza virus is cultured in eggs, or mammalian cells, (e.g. MDCK cells) or when isolated from an infected subject. Non-limiting examples of such differences are illustrated herein, including Example 18. Furthermore, as one of skill in the art would realize, additional variation may be observed within influenza hemagglutinins obtained from new strains as additional mutations continue to occur. Due to the known sequence variability between different influenza hemagglutinins, the present invention includes VLPs that may be made using any influenza hemagglutin provided that when expressed in a host as described herein, the influenza hemagglutin forms a VLP.

[0232]Sequence alignments and consensus sequences may be determined using any of several software packages known in the art, for example MULTALIN (F. CORPET, 1988, Nucl. Acids Res., 16 (22), 10881-10890), or sequences may be aligned manually and similarities and differences between the sequences determined.

[0233]The structure of hemagglutinins is well-studied and the structures are known to be highly conserved. When hemagglutinin structures are superimposed, a high degree of structural conservation is observed (rmsd<2A). This structural conservation is observed even though the amino acid sequence may vary in some positions (see, for example, Skehel and Wiley, 2000 Ann Rev Biochem 69:531-69; Vaccaro et al 2005). Regions of hemagglutinins are also well-conserved, for example: [0234]Structural domains: The HA0 polyprotein is cleaved to provide mature HA. HA is a homotrimer with each monomer comprising a receptor binding domain (HA1) and a membrane-anchoring domain (HA2) linked by a single disulphide bond; the N-terminal 20 residues of the HA2 subunit may also be referred to as the HA fusion domain or sequence. A `tail` region (internal to the membrane envelope) is also present. Each hemagglutinin comprises these regions or domains. Individual regions or domains are typically conserved in length. [0235]All hemagglutinins contain the same number and position of intra- and inter-molecular disulfide bridges. The quantity and position on the amino acid sequence of the cysteines that participate in disulfide bridge network is conserved among the HAs. Examples of structures illustrating the characteristic intra- and intermolecular disulfide bridges and other conserved amino acids and their relative positions are described in, for example, Gamblin et al 2004 (Science 303:1838-1842). Exemplary structures and sequences include 1RVZ, 1RVX, 1RVT, 1RV0, 1RUY, 1RU7, available from the Protein Data Bank (Berman et al. 2003. Nature Structural Biology 10:980; URL: rcsb.org) [0236]Cytoplasmic tail--the majority of hemagglutinins comprise 3 cysteines at conserved positions. One or more of these cysteines may be palmitoylated as a post-translational modification.

[0237]Amino acid variation is tolerated in hemagglutinins of influenza viruses. This variation provides for new strains that are continually identified. Infectivity between the new strains may vary. However, formation of hemagglutinin trimers, which subsequently form VLPs is maintained. The present invention, therefore, provides for a hemagglutinin amino acid sequence, or a nucleic acid encoding a hemagglutinin amino acid sequence, that forms VLPs in a plant, and includes known sequences and variant sequences that may develop.

[0238]FIG. 65 illustrates an example of such known variation. This figure shows a consensus amino acid sequence (SEQ ID NO: 74) for HA of the following H1N1 strains:

[0239]A/New Calcdonia/20/99 (H1N1) (encoded by SEQ ID NO: 33),

[0240]A/Brisbane/59/2007 (H1N1) (SEQ ID NO: 48),

[0241]A/Solomon Islands/3/2006 (H1N1) (SEQ ID NO: 49) and

[0242]SEQ ID NO: 9. X1 (position 3) is A or V; X2 (position 52) is D or N; X3 (position 90) is K or R; X4 (position 99) is K or T; X5 (position 111) is Y or H; X6 (position 145) is V or T; X7 (position 154) is E or K; X8 (position 161) is R or K; X9 (position 181) is V or A; X10 (position 203) is D or N; X11 (position 2o5) is R or K; X12 (position 210) is T or K; X13 (position 225) is R or K; X14 (position 268) is W or R; X15 (position 283) is T or N; X16 (position 290) is E or K; X17 (position 432) is I or L; X18 (position 489) is N or D.

[0243]As another example of such variation, a sequence alignment and consensus sequence for HA of A/New Calcdonia/20/99 (H1N1) (encoded by SEQ ID NO: 33), A/Brisbane/59/2007 (H1N1) (SEQ ID NO: 48), A/Solomon Islands/3/2006 (H1N1) (SEQ ID NO: 49), A/PuertoRico/8/34 (H1N1) and SEQ ID NO: 9 is shown below in Table 3.

TABLE-US-00004 TABLE 3 Sequence alignment and consensus sequence for HA of selected H1N1 strains SEQ ID NO. Sequence 1 50 75 MKAKLLVLLC TFTATYADTI CIGYHANNST DTVDTVLEKN VTVTHSVNLL 9 MKAKLLVLLC TFTATYADTI CIGYHANNST DTVDTVLEKN VTVTHSVNLL 48 MKVKLLVLLC TFTATYADTI CIGYHANNST DTVDTVLEKN VTVTHSVNLL 49 MKVKLLVLLC TFTATYADTI CIGYHANNST DTVDTVLEKN VTVTHSVNLL 76 .......... .......... .......... .......... .......... Consensus mkxkllvllc tftatyadti cigyhannst dtvdtvlekn vtvthsvnll 51 100 75 EDSHNGKLCL LKGIAPLQLG NCSVAGWILG NPECELLISK ESWSYIVETP 9 EDSHNGKLCL LKGIAPLQLG NCSVAGWILG NPECELLISK ESWSYIVETP 48 ENSHNGKLCL LKGIAPLQLG NCSVAGWILG NPECELLISK ESWSYIVEKP 49 EDSHNGKLCL LKGIAPLQLG NCSVAGWILG NPECELLISR ESWSYIVEKP 76 .......... .......... .......... .......... .......... Consensus exshngklcl lkgiaplqlg ncsvagwilg npecellis. eswsyive.p 101 150 75 NPENGTCYPG YFADYEELRE QLSSVSSFER FEIFPKESSW PNHTVTGVSA 9 NPENGTCYPG YFADYEELRE QLSSVSSFER FEIFPKESSW PNHTVTGVSA 48 NPENGTCYPG HFADYEELRE QLSSVSSFER FEIFPKESSW PNHTVTGVSA 49 NPENGTCYPG HFADYEELRE QLSSVSSFER FEIFPKESSW PNHTTTGVSA 76 .......... .......... .......... .......... .......... Consensus npengtcypg xfadyeelre qlssvssfer feifpkessw pnhtxtgvsa 151 200 75 SCSHNGKSSF YRNLLWLTGK NGLYPNLSKS YVNNKEKEVL VLWGVHHPPN 9 SCSHNGKSSF YRNLLWLTGK NGLYPNLSKS YVNNKEKEVL VLWGVHHPPN 48 SCSHNGESSF YRNLLWLTGK NGLYPNLSKS YANNKEKEVL VLWGVHHPPN 49 SCSHNGESSF YKNLLWLTGK NGLYPNLSKS YANNKEKEVL VLWGVHHPPN 76 .......... .......... .......... .......... .......... Consensus scshngxssf yxnllwltgk nglypnlsks yxnnkekevl vlwgvhhppn 201 250 75 IGNQRALYHT ENAYVSVVSS HYSRRFTPEI AKRPKVRDQE GRINYYWTLL 9 IGNQRALYHT ENAYVSVVSS HYSRRFTPEI AKRPKVRDQE GRINYYWTLL 48 IGDQKALYHT ENAYVSVVSS HYSRKFTPEI AKRPKVRDQE GRINYYWTLL 49 IGDQRALYHK ENAYVSVVSS HYSRKFTPEI AKRPKVRDQE GRINYYWTLL 76 .......... .....MSLLT EVETYVLSII PSGPLKAEIA QRLEDVFAGK Consensus igxqxalyhx enayvsvvss hysrxftpeI akrPkvr#qe gRi#yywtll 251 300 75 EPGDTIIFEA NGNLIAPWYA FALSRGFGSG IITSNAPMDE CDAKCQTPQG 9 EPGDTIIFEA NGNLIAPWYA FALSRGFGSG IITSNAPMDE CDAKCQTPQG 48 EPGDTIIFEA NGNLIAPRYA FALSRGFGSG IINSNAPMDK CDAKCQTPQG 49 EPGDTIIFEA NGNLIAPRYA FALSRGFGSG IINSNAPMDE CDAKCQTPQG 76 NTDLEVLMEW ...LKTRPIL SPLTKGILGF VFTLTVPSER GLQRRRFVQN Consensus #pgdt!ifEa ngnLiapxya faLsrGfgsg !itsnaPm#x cdakcqtpQg 301 350 75 AINSSLPFQN VHPVTIGECP KYVRSAKLRM VT.GLRNIPS IQSRGLFGAI 9 AINSSLPFQN VHPVTIGECP KYVRSAKLRM VT.GLRNIPS IQSRGLFGAI 48 AINSSLPFQN VHPVTIGECP KYVRSAKLRM VT.GLRNIPS IQSRGLFGAI 49 AINSSLPFQN VHPVTIGECP KYVRSAKLRM VT.GLRNIPS IQSRGLFGAI 76 ALNG.....N GDPNNMDKAV KLYRKLKREI TFHGAKEISL SYSAGALASC Consensus AiNsslpfqN vhPvtigecp KyvRsaKlrm vtxGlr#Ips iqSrGlfgai 351 400 75 AGFIEGGWTG MVDGWYGYHH QNEQGSGYAA DQKSTQNAIN GITNKVNSVI 9 AGFIEGGWTG MVDGWYGYHH QNEQGSGYAA DQKSTQNAIN GITNKVNSVI 48 AGFIEGGWTG MVDGWYGYHH QNEQGSGYAA DQKSTQNAIN GITNKVNSVI 49 AGFIEGGWTG MVDGWYGYHH QNEQGSGYAA DQKSTQNAIN GITNKVNSVI 76 MGLIYNRM.G AVTTEVAFGL VCATCEQIAD SQHRSHRQMV TTTNPLIRHE Consensus aGfIeggwtG mVdgwyg%hh qneqgsgyAa dQkstqnain giTNkvnsvi 401 450 75 EKMNTQFTAV GKEFNKLERR MENLNKKVDD GFLDIWTYNA ELLVLLENER 9 EKMNTQFTAV GKEFNKLERR MENLNKKVDD GFLDIWTYNA ELLVLLENER 48 EKMNTQFTAV GKEFNKLERR MENLNKKVDD GFIDIWTYNA ELLVLLENER 49 EKMNTQFTAV GKEFNKLERR MENLNKKVDD GFIDIWTYNA ELLVLLENER 76 NRMVLASTTA .KAMEQMAGS SEQAAEAMEV A........S QARQMVQAMR Consensus #kMntqfTav gKef#k$err mE#lnkkv#d gfxdiwtyna #llv$l#neR 451 500 75 TLDFHDSNVK NLYEKVKSQL KNNAKEIGNG CFEFYHKCNN ECMESVKNGT 9 TLDFHDSNVK NLYEKVKSQL KNNAKEIGNG CFEFYHKCNN ECMESVKNGT 48 TLDFHDSNVK NLYEKVKSQL KNNAKEIGNG CFEFYHKCND ECMESVKNGT 49 TLDFHDSNVK NLYEKVKSQL KNNAKEIGNG CFEFYHKCND ECMESVKNGT 76 TIGTHPSSSA GLKNDLLENL QAYQKRMGVQ MQRFK..... .......... Consensus TldfHdSnvk nLy#kvks#L knnaKeiGng cfeFyhkcnx ecmesvkngt 501 550 75 YDYPKYSEES KLNREKIDGV KLESMGVYQI LAIYSTVASS LVLLVSLGAI 9 YDYPKYSEES KLNREKIDGV KLESMGVYQI LAIYSTVASS LVLLVSLGAI 48 YDYPKYSEES KLNREKIDGV KLESMGVYQI LAIYSTVASS LVLLVSLGAI 49 YDYPKYSEES KLNREKIDGV KLESMGVYQI LAIYSTVASS LVLLVSLGAI 76 .......... .......... .......... .......... .......... Consensus ydypkysees klnrekidgv klesmgvyqi laiystvass lvllvslgai 551 566 75 SFWMCSNGSL QCRICI 9 SFWMCSNGSL QCRICI 48 SFWMCSNGSL QCRICI 49 SFWMCSNGSL QCRICI 76 .......... ...... Consensus sfwmcsngsl qcrici

The consensus sequence indicates in upper case letters amino acids common to all sequences at a designated position; lower case letters indicate amino acids common to at least half, or a majority of the sequences; the symbol ! is any one of I or V; the symbol $ is any one of L or M; the symbol % is any one of F or Y; the symbol # is any one of N, D, Q, E,B or Z; the symbol "." is no amino acid (e.g. a deletion); X at position 3 is any one of A or V; X at position 52 is any one of E or N; X at position 90 is K or R; X at position 99 is T or K; X at position 111 is any one of Y or H; X at position 145 is any one of V or T; X at position 157 is K or E;X at position 162 is R or K; X at position 182 is V or A; X at position 203 is N or D; X at position 205 is R or K; X at position 210 is T or K; X at position 225 is K or Y; X at position 333 is H or a deletion; X at position 433 is I or L; X at position 49) is N or D.

[0244]As another example of such variation, a sequence alignment and consensus sequence for HA of A/Anhui/1/2005 (H5N1) (SEQ ID NO: 55), A/Vietnam/1194/2004 (H5N1) and A/Indonesia/5/2006 (H5N1) (SEQ ID NO: 10) is shown below in Table 4.

TABLE-US-00005 TABLE 4 Sequence alignment and consensus sequence for HA of selected H1N1 strains SEQ ID NO. Sequence 1 50 10 MEKIVLLLAI VSLVKSDQIC IGYHANNSTE QVDTIMEKNV TVTHAQDILE 56 MEKIVLLFAI VSLVKSDQIC IGYHANNSTE QVDTIMEKNV TVTHAQDILE 55 MEKIVLLLAI VSLVKSDQIC IGYHANNSTE QVDTIMEKNV TVTHAQDILE Consensus MEKIVLLlAI VSLVKSDQIC IGYHANNSTE QVDTIMEKNV TVTHAQDILE 51 100 10 KTHNGKLCDL DGVKPLILRD CSVAGWLLGN PMCDEFINVP EWSYIVEKAN 56 KTHNGKLCDL DGVKPLILRD CSVAGWLLGN PMCDEFINVP EWSYIVEKAN 55 KTHNGKLCDL DGVKPLILRD CSVAGWLLGN PMCDEFINVP EWSYIVEKAN Consensus KTHNGKLCDL DGVKPLILRD CSVAGWLLGN PMCDEFINVP EWSYIVEKAN 101 150 10 PTNDLCYPGS FNDYEELKHL LSRINHFEKI QIIPKSSWSD HEASSGVSSA 56 PVNDLCYPGD FNDYEELKHL LSRINHFEKI QIIPKSSWSS HEASLGVSSA 55 PANDLCYPGN FNDYEELKHL LSRINHFEKI QIIPKSSWSD HEASSGVSSA Consensus PxNDLCYPGx FNDYEELKHL LSRINHFEKI QIIPKSSWSd HEASsGVSSA 151 200 10 CPYLGSPSFF RNVVWLIKKN STYPTIKKSY NNTNQEDLLV LWGIHHPNDA 56 CPYQGKSSFF RNVVWLIKKN STYPTIKRSY NNTNQEDLLV LWGIHHPNDA 55 CPYQGTPSFF RNVVWLIKKN NTYPTIKRSY NNTNQEDLLI LWGIHHSNDA Consensus CPYqGxpSFF RNVVWLIKKN sTYPTIKrSY NNTNQEDLL! LWGIHHpNDA 201 250 10 AEQTRLYQNP TTYISIGTST LNQRLVPKIA TRSKVNGQSG RMEFFWTILK 56 AEQTKLYQNP TTYISVGTST LNQRLVPRIA TRSKVNGQSG RMEFFWTILK 55 AEQTKLYQNP TTYISVGTST LNQRLVPKIA TRSKVNGQSG RMDFFWTILK Consensus AEQTkLYQNP TTYIS!GTST LNQRLVPkIA TRSKVNGQSG RM#FFWTILK 251 300 10 PNDAINFESN GNFIAPEYAY KIVKKGDSAI MKSELEYGNC NTKCQTPMGA 56 PNDAINFESN GNFIAPEYAY KIVKKGDSTI MKSELEYGNC NTKCQTPMGA 55 PNDAINFESN GNFIAPEYAY KIVKKGDSAI VKSEVEYGNC NTKCQTPIGA Consensus PNDAINFESN GNFIAPEYAY KIVKKGDSaI mKSElEYGNC NTKCQTPmGA 301 350 10 INSSMPFHNI HPLTIGECPK YVKSNRLVLA TGLRNSPQRE SRRKKRGLFG 56 INSSMPFHNI HPLTIGECPK YVKSNRLVLA TGLRNSPQRE RRRKKRGLFG 55 INSSMPFHNI HPLTIGECPK YVKSNKLVLA TGLRNSPLRE RRRK.RGLFG Consensus INSSMPFHNI HPLTIGECPK YVKSNrLVLA TGLRNSPqRE rRRKkRGLFG 351 400 10 AIAGFIEGGW QGMVDGWYGY HHSNEQGSGY AADKESTQKA IDGVTNKVNS 56 AIAGFIEGGW QGMVDGWYGY HHSNEQGSGY AADKESTQKA IDGVTNKVNS 55 AIAGFIEGGW QGMVDGWYGY HHSNEQGSGY AADKESTQKA IDGVTNKVNS Consensus AIAGFIEGGW QGMVDGWYGY HHSNEQGSGY AADKESTQKA IDGVTNKVNS 401 450 10 IIDKMNTQFE AVGREFNNLE RRIENLNKKM EDGFLDVWTY NAELLVLMEN 56 IIDKMNTQFE AVGREFNNLE RRIENLNKKM EDGFLDVWTY NAELLVLMEN 55 IIDKMNTQFE AVGREFNNLE RRIENLNKKM EDGFLDVWTY NAELLVLMEN Consensus IIDKMNTQFE AVGREFNNLE RRIENLNKKM EDGFLDVWTY NAELLVLMEN 451 500 10 ERTLDFHDSN VKNLYDKVRL QLRDNAKELG NGCFEFYHKC DNECMESIRN 56 ERTLDFHDSN VKNLYDKVRL QLRDNAKELG NGCFEFYHKC DNECMESVRN 55 ERTLDFHDSN VKNLYDKVRL QLRDNAKELG NGCFEFYHKC DNECMESVRN Consensus ERTLDFHDSN VKNLYDKVRL QLRDNAKELG NGCFEFYHKC DNECMES!RN 501 550 10 GTYNYPQYSE EARLKREEIS GVKLESIGTY QILSIYSTVA SSLALAIMMA 56 GTYDYPQYSE EARLKREEIS GVKLESIGIY QILSIYSTVA SSLALAIMVA 55 GTYDYPQYSE EARLKREEIS GVKLESIGTY QILSIYSTVA SSLALAIMVA Consensus GTY#YPQYSE EARLKREEIS GVKLESIGtY QILSIYSTVA SSLALAIMvA 551 568 10 GLSLWMCSNG SLQCRICI 56 GLSLWMCSNG SLQCRICI 55 GLSLWMCSNG SLQCRICI Consensus GLSLWMCSNG SLQCRICI

The consensus sequence indicates in upper case letters amino acids common to all sequences at a designated position; lower case letters indicate amino acids common to at least half, or a majority of the sequences; the symbol ! is any one of I or V; the symbol $ is any one of L or M; the symbol % is any one of F or Y; the symbol # is any one of N, D, Q, E,B or Z; X at position 102 is any of T, V or A; X t position 110 is any of S, D or N; X at position 156 is any of S, K or T.

[0245]The above-illustrated and described alignments and consensus sequences are non-limiting examples of variants in hemagglutinin amino acid sequences that may be used in various embodiments of the invention for the production of VLPs in a plant.

[0246]A nucleic acid encoding an amino acid sequence may be easily determined, as the codons for each amino acid are known in the art. Provision of an amino acid sequence, therefore, teaches the degenerate nucleic acid sequences that encode it. The present invention, therefore, provides for a nucleic acid sequence encoding the hemagglutinin of those influenza strains and subtypes disclosed herein (e.g. A/New Calcdonia/20/99 (H1N1)A/Indonesia/5/2006 (H5N1), A/chicken/New York/1995, A/herring gull/DE/677/88 (H2N8), A/Texas/32/2003, A/mallard/MN/33/00, A/duck/Shanghai/1/2000, A/northern pintail/TX/828189/02, A/Turkey/Ontario/6118/68 (H8N4), A/shoveler/Iran/G54/03, A/chicken/GermanyN/1949 (1110N7), A/duck/England/56 (H11N6), A/duck/Alberta/60/76 (H12N5), A/Gull/Maryland/704/77 (H13N6), A/Mallard/Gurjev/263/82, A/duck/Australia/341/83 (H15N8), A/black-headed gull/Sweden/5/99 (H16N3), B/Lee/40, C/Johannesburg/66, A/PuertoRico/8/34 (H1N1), A/Brisbane/59/2007 (H1N1), A/Solomon Islands 3/2006 (H1N1), A/Brisbane 10/2007 (H3N2), A/Wisconsin/67/2005 (H3N2), B/Malaysia/2506/2004, B/Florida/4/2006, A/Singapore/1/57 (H2N2), A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), A/Teal/HongKong/W312/97 (H6N1), A/Equine/Prague/56 (H7N7), A/HongKong/1073/99 (119N2)), as well as the degerenate sequences that encode the above hemagglutinins.

[0247]Further, an amino acid sequence encoded by a nucleic acid may be easily determined, as the codon or codons for each amino acid are known. Provision of a nucleic acid, therefore, teaches an amino acid sequence encoded by it. The invention, therefore, provides for amino acid sequences of the hemagglutinin of those influenza strains and subtypes disclosed herein those disclosed herein (e.g. A/New Calcdonia/20/99 (H1N1)A/Indonesia/5/2006 (H5N1), A/chicken/New York/1995, A/herring gull/DE/677/88 (H2N8), A/Texas/32/2003, A/mallard/MN/33/00, A/duck/Shanghai/1/2000, A/northern pintail/TX/828189/02, A/Turkey/Ontario/6118/68 (H8N4), A/shoveler/Iran/G54/03, A/chicken/Germany/N/1949 (H10N7), A/duck/England/56 (H11N6), A/duck/Alberta/60/76 (H12N5), A/Gull/Maryland/704/77 (H13N6), A/Mallard/Gurjev/263/82, A/duck/Australia/341/83 (H15N8), A/black-headed gull/Sweden/5/99 (H16N3), B/Lee/40, C/Johannesburg/66, A/PuertoRico/8/34 (H1N1), A/Brisbane/59/2007 (H1N1), A/Solomon Islands 3/2006 (H1N1), A/Brisbane 10/2007 (113N2), A/Wisconsin/67/2005 (H3N2), B/Malaysia/2506/2004, B/Florida/4/2006, A/Singapore/1/57 (H2N2), A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), A/Teal/HongKong/W312/97 (H6N1), A/Equine/Prague/56 (H7N7), A/HongKong/1073/99 (H9N2)).

[0248]In plants, influenza VLPs bud from the plasma membrane (see Example 5, and FIG. 19) therefore the lipid composition of the VLPs reflects their origin. The VLPs produced according to the present invention comprise HA of one or more than one type or subtype of influenza, complexed with plant derived lipids. Plant lipids can stimulate specific immune cells and enhance the immune response induced. Plant membranes are made of lipids, phosphatidylcholine (PC) and phosphatidylethanolamine (PE), and also contain glycosphingolipids, saponins, and phytosterols. Additionally, lipid rafts are also found in plant plasma membranes--these microdomains are enriched in sphingolipids and sterols. In plants, a variety of phytosterols are known to occur, including stigmasterol, sitosterol, 24-methylcholesterol and cholesterol (Mongrand et al., 2004).

[0249]PC and PE, as well as glycosphingolipids can bind to CD1 molecules expressed by mammalian immune cells such as antigen-presenting cells (APCs) like dendritic cells and macrophages and other cells including B and T lymphocytes in the thymus and liver (Tsuji M., 2006). CD1 molecules are structurally similar to major histocompatibility complex (MHC) molecules of class I and their role is to present glycolipid antigens to NKT cells (Natural Killer T cells). Upon activation, NKT cells activate innate immune cells such as NK cells and dendritic cells and also activate adaptive immune cells like the antibody-producing B cells and T-cells.

[0250]A variety of phytosterols may be found in a plasma membrane--the specific complement may vary depending on the species, growth conditions, nutrient resources or pathogen state, to name a few factors. Generally, beta-sitosterol is the most abundant phytosterol.

[0251]The phytosterols present in an influenza VLP complexed with a lipid bilayer, such as an plasma-membrane derived envelope may provide for an advantageous vaccine composition. Without wishing to be bound by theory, plant-made VLPs complexed with a lipid bilayer, such as a plasma-membrane derived envelope, may induce a stronger immune reaction than VLPs made in other expression systems, and may be similar to the immune reaction induced by live or attenuated whole virus vaccines.

[0252]Therefore, in some embodiments, the invention provides for a VLP complexed with a plant-derived lipid bilayer. In some embodiments the plant-derived lipid bilayer may comprise the envelope of the VLP.

[0253]The VLP produced within a plant may include an HA comprising plant-specific N-glycans. Therefore, this invention also provides for a VLP comprising HA having plant specific N-glycans.

[0254]Furthermore, modification of N-glycan in plants is known (see for example U.S. 60/944,344; which is incorporated herein by reference) and HA having modified N-glycans may be produced. HA comprising a modified glycosylation pattern, for example with reduced fucosylated, xylosylated, or both, fucosylated and xylosylated, N-glycans may be obtained, or HA having a modified glycosylation pattern may be obtained, wherein the protein lacks fucosylation, xylosylation, or both, and comprises increased galatosylation. Furthermore, modulation of post-translational modifications, for example, the addition of terminal galactose may result in a reduction of fucosylation and xylosylation of the expressed HA when compared to a wild-type plant expressing HA.

[0255]For example, which is not to be considered limiting, the synthesis of HA having a modified glycosylation pattern may be achieved by co-expressing the protein of interest along with a nucleotide sequence encoding beta-1.4galactosyltransferase (GalT), for example, but not limited to mammalian GalT, or human GalT however GalT from another sources may also be used. The catalytic domain of GalT may also be fused to a CTS domain (i.e. the cytoplasmic tail, transmembrane domain, stem region) of N-acetylglucosaminyl transferase (GNT1), to produce a GNT1-GalT hybrid enzyme, and the hybrid enzyme may be co-expressed with HA. The HA may also be co-expressed along with a nucleotide sequence encoding N-acetylglucosaminyltrasnferase III (GnT-III), for example but not limited to mammalian GnT-III or human GnT-III, GnT-III from other sources may also be used. Additionally, a GNT1-GnT-III hybrid enzyme, comprising the CTS of GNT1 fused to GnT-III may also be used.

[0256]Therefore the present invention also includes VLP's comprising HA having modified N-glycans.

[0257]Without wishing to be bound by theory, the presence of plant N-glycans on HA may stimulate the immune response by promoting the binding of HA by antigen presenting cells. Stimulation of the immune response using plant N glycan has been proposed by Saint-Jore-Dupas et al. (2007). Furthermore, the conformation of the VLP may be advantageous for the presentation of the antigen, and enhance the adjuvant effect of VLP when complexed with a plant derived lipid layer.

[0258]By "regulatory region", "regulatory element" or "promoter" it is meant a portion of nucleic acid typically, but not always, upstream of the protein coding region of a gene, which may be comprised of either DNA or RNA, or both DNA and RNA. When a regulatory region is active, and in operative association, or operatively linked, with a gene of interest, this may result in expression of the gene of interest. A regulatory element may be capable of mediating organ specificity, or controlling developmental or temporal gene activation. A "regulatory region" includes promoter elements, core promoter elements exhibiting a basal promoter activity, elements that are inducible in response to an external stimulus, elements that mediate promoter activity such as negative regulatory elements or transcriptional enhancers. "Regulatory region", as used herein, also includes elements that are active following transcription, for example, regulatory elements that modulate gene expression such as translational and transcriptional enhancers, translational and transcriptional repressors, upstream activating sequences, and mRNA instability determinants. Several of these latter elements may be located proximal to the coding region.

[0259]In the context of this disclosure, the term "regulatory element" or "regulatory region" typically refers to a sequence of DNA, usually, but not always, upstream (5') to the coding sequence of a structural gene, which controls the expression of the coding region by providing the recognition for RNA polymerase and/or other factors required for transcription to start at a particular site. However, it is to be understood that other nucleotide sequences, located within introns, or 3' of the sequence may also contribute to the regulation of expression of a coding region of interest. An example of a regulatory element that provides for the recognition for RNA polymerase or other transcriptional factors to ensure initiation at a particular site is a promoter element. Most, but not all, eukaryotic promoter elements contain a TATA box, a conserved nucleic acid sequence comprised of adenosine and thymidine nucleotide base pairs usually situated approximately 25 base pairs upstream of a transcriptional start site. A promoter element comprises a basal promoter element, responsible for the initiation of transcription, as well as other regulatory elements (as listed above) that modify gene expression.

[0260]There are several types of regulatory regions, including those that are developmentally regulated, inducible or constitutive. A regulatory region that is developmentally regulated, or controls the differential expression of a gene under its control, is activated within certain organs or tissues of an organ at specific times during the development of that organ or tissue. However, some regulatory regions that are developmentally regulated may preferentially be active within certain organs or tissues at specific developmental stages, they may also be active in a developmentally regulated manner, or at a basal level in other organs or tissues within the plant as well. Examples of tissue-specific regulatory regions, for example see-specific a regulatory region, include the napin promoter, and the cruciferin promoter (Rask et al., 1998, J. Plant Physiol. 152: 595-599; Bilodeau et al., 1994, Plant Cell 14: 125-130). An example of a leaf-specific promoter includes the plastocyanin promoter (FIG. 1b or SEQ ID NO:23); U.S. Pat. No. 7,125,978, which is incorporated herein by reference).

[0261]An inducible regulatory region is one that is capable of directly or indirectly activating transcription of one or more DNA sequences or genes in response to an inducer. In the absence of an inducer the DNA sequences or genes will not be transcribed. Typically the protein factor that binds specifically to an inducible regulatory region to activate transcription may be present in an inactive form, which is then directly or indirectly converted to the active form by the inducer. However, the protein factor may also be absent. The inducer can be a chemical agent such as a protein, metabolite, growth regulator, herbicide or phenolic compound or a physiological stress imposed directly by heat, cold, salt, or toxic elements or indirectly through the action of a pathogen or disease agent such as a virus. A plant cell containing an inducible regulatory region may be exposed to an inducer by externally applying the inducer to the cell or plant such as by spraying, watering, heating or similar methods. Inducible regulatory elements may be derived from either plant or non-plant genes (e.g. Gatz, C. and Lenk, I. R. P., 1998, Trends Plant Sci. 3, 352-358; which is incorporated by reference). Examples, of potential inducible promoters include, but not limited to, tetracycline-inducible promoter (Gatz, C., 1997, Ann. Rev. Plant Physiol. Plant Mol. Biol. 48, 89-108; which is incorporated by reference), steroid inducible promoter (Aoyama, T. and Chua, N. H., 1997, Plant J. 2, 397-404; which is incorporated by reference) and ethanol-inducible promoter (Salter, M. G., et al, 1998, Plant Journal 16, 127-132; Caddick, M. X., et al, 1998, Nature Biotech. 16, 177-180, which are incorporated by reference) cytokinin inducible IB6 and CK11 genes (Brandstatter, I. and Kieber, J. J., 1998, Plant Cell 10, 1009-1019; Kakimoto, T., 1996, Science 274, 982-985; which are incorporated by reference) and the auxin inducible element, DR5 (Ulmasov, T., et al., 1997, Plant Cell 9, 1963-1971; which is incorporated by reference).

[0262]A constitutive regulatory region directs the expression of a gene throughout the various parts of a plant and continuously throughout plant development. Examples of known constitutive regulatory elements include promoters associated with the CaMV 35S transcript. (Odell et al., 1985, Nature, 313: 810-812), the rice actin 1 (Zhang et al, 1991, Plant Cell, 3: 1155-1165), actin 2 (An et al., 1996, Plant J., 10: 107-121), or tms 2 (U.S. Pat. No. 5,428,147, which is incorporated herein by reference), and triosephosphate isomerase 1 (Xu et. al., 1994, Plant Physiol. 106: 459-467) genes, the maize ubiquitin 1 gene (Cornejo et al, 1993, Plant Mol. Biol. 29: 637-646), the Arabidopsis ubiquitin 1 and 6 genes (Holtorf et al, 1995, Plant Mol. Biol. 29: 637-646), and the tobacco translational initiation factor 4A gene (Mandel et al, 1995 Plant Mol. Biol. 29: 995-1004). The term "constitutive" as used herein does not necessarily indicate that a gene under control of the constitutive regulatory region is expressed at the same level in all cell types, but that the gene is expressed in a wide range of cell types even though variation in abundance is often observed. Constitutive regulatory elements may be coupled with other sequences to further enhance the transcription and/or translation of the nucleotide sequence to which they are operatively linked. For example, the CMPV-HT system (Sainsbury et al, 2008, Plant Physiology 148: 1212-1218) is derived from the untranslated regions of the Cowpea mosaic virus (COMV) and demonstrates enhanced translation of the associated coding sequence.

[0263]By "native" it is meant that the nucleic acid or amino acid sequence is naturally occurring, or "wild type".

[0264]By "operatively linked" it is meant that the particular sequences, for example a regulatory element and a coding region of interest, interact either directly or indirectly to carry out an intended function, such as mediation or modulation of gene expression. The interaction of operatively linked sequences may, for example, be mediated by proteins that interact with the operatively linked sequences.

[0265]The one or more than one nucleotide sequence of the present invention may be expressed in any suitable plant host that is transformed by the nucleotide sequence, or constructs, or vectors of the present invention. Examples of suitable hosts include, but are not limited to, agricultural crops including alfalfa, canola, Brassica spp., maize, Nicotiana spp., alfalfa, potato, ginseng, pea, oat, rice, soybean, wheat, barley, sunflower, cotton and the like.

[0266]The one or more chimeric genetic constructs of the present invention can further comprise a 3' untranslated region. A 3' untranslated region refers to that portion of a gene comprising a DNA segment that contains a polyadenylation signal and any other regulatory signals capable of effecting mRNA processing or gene expression. The polyadenylation signal is usually characterized by effecting the addition of polyadenylic acid tracks to the 3' end of the mRNA precursor. Polyadenylation signals are commonly recognized by the presence of homology to the canonical form 5' AATAAA-3' although variations are not uncommon. One or more of the chimeric genetic constructs of the present invention can also include further enhancers, either translation or transcription enhancers, as may be required. These enhancer regions are well known to persons skilled in the art, and can include the ATG initiation codon and adjacent sequences. The initiation codon must be in phase with the reading frame of the coding sequence to ensure translation of the entire sequence.

[0267]Non-limiting examples of suitable 3' regions are the 3' transcribed non-translated regions containing a polyadenylation signal of Agrobacterium tumor inducing (Ti) plasmid genes, such as the nopaline synthase (Nos gene) and plant genes such as the soybean storage protein genes, the small subunit of the ribulose-1,5-bisphosphate carboxylase (ssRUBISCO; U.S. Pat. No. 4,962,028; which is incorporated herein by reference) gene, the promoter used in regulating plastocyanin expression (Pwee and Gray 1993; which is incorporated herein by reference). An example of a plastocyanin promoter is described in U.S. Pat. No. 7,125,978 (which is incorporated herein by reference)

[0268]As described herein, promoters comprising enhancer sequences with demonstrated efficiency in leaf expression, have been found to be effective in transient expression. Without wishing to be bound by theory, attachment of upstream regulatory elements of a photosynthetic gene by attachment to the nuclear matrix may mediate strong expression. For example up to -784 from the translation start site of the pea plastocyanin gene may be used mediate strong reporter gene expression.

[0269]To aid in identification of transformed plant cells, the constructs of this invention may be further manipulated to include plant selectable markers. Useful selectable markers include enzymes that provide for resistance to chemicals such as an antibiotic for example, gentamycin, hygromycin, kanamycin, or herbicides such as phosphinothrycin, glyphosate, chlorosulfuron, and the like. Similarly, enzymes providing for production of a compound identifiable by colour change such as GUS (beta-glucuronidase), or luminescence, such as luciferase or GFP, may be used.

[0270]Also considered part of this invention are transgenic plants, plant cells or seeds containing the chimeric gene construct of the present invention. Methods of regenerating whole plants from plant cells are also known in the art. In general, transformed plant cells are cultured in an appropriate medium, which may contain selective agents such as antibiotics, where selectable markers are used to facilitate identification of transformed plant cells. Once callus forms, shoot formation can be encouraged by employing the appropriate plant hormones in accordance with known methods and the shoots transferred to rooting medium for regeneration of plants. The plants may then be used to establish repetitive generations, either from seeds or using vegetative propagation techniques. Transgenic plants can also be generated without using tissue cultures.

[0271]Also considered part of this invention are transgenic plants, trees, yeast, bacteria, fungi, insect and animal cells containing the chimeric gene construct comprising a nucleic acid encoding recombinant HA0 for VLP production, in accordance with the present invention.

[0272]The regulatory elements of the present invention may also be combined with coding region of interest for expression within a range of host organisms that are amenable to transformation, or transient expression. Such organisms include, but are not limited to plants, both monocots and dicots, for example but not limited to corn, cereal plants, wheat, barley, oat, Nicotiana spp, Brassica spp, soybean, bean, pea, alfalfa, potato, tomato, ginseng, and Arabidopsis.

[0273]Methods for stable transformation, and regeneration of these organisms are established in the art and known to one of skill in the art. The method of obtaining transformed and regenerated plants is not critical to the present invention.

[0274]By "transformation" it is meant the stable interspecific transfer of genetic information (nucleotide sequence) that is manifested genotypically, phenotypically or both. The interspecific transfer of genetic information from a chimeric construct to a host may be heritable and the transfer of genetic information considered stable, or the transfer may be transient and the transfer of genetic information is not inheritable.

[0275]By the term "plant matter", it is meant any material derived from a plant. Plant matter may comprise an entire plant, tissue, cells, or any fraction thereof. Further, plant matter may comprise intracellular plant components, extracellular plant components, liquid or solid extracts of plants, or a combination thereof. Further, plant matter may comprise plants, plant cells, tissue, a liquid extract, or a combination thereof, from plant leaves, stems, fruit, roots or a combination thereof. Plant matter may comprise a plant or portion thereof which has not been subjected to any processing steps. A portion of a plant may comprise plant matter. However, it is also contemplated that the plant material may be subjected to minimal processing steps as defined below, or more rigorous processing, including partial or substantial protein purification using techniques commonly known within the art including, but not limited to chromatography, electrophoresis and the like.

[0276]By the term "minimal processing" it is meant plant matter, for example, a plant or portion thereof comprising a protein of interest which is partially purified to yield a plant extract, homogenate, fraction of plant homogenate or the like (i.e. minimally processed). Partial purification may comprise, but is not limited to disrupting plant cellular structures thereby creating a composition comprising soluble plant components, and insoluble plant components which may be separated for example, but not limited to, by centrifugation, filtration or a combination thereof. In this regard, proteins secreted within the extracellular space of leaf or other tissues could be readily obtained using vacuum or centrifugal extraction, or tissues could be extracted under pressure by passage through rollers or grinding or the like to squeeze or liberate the protein free from within the extracellular space. Minimal processing could also involve preparation of crude extracts of soluble proteins, since these preparations would have negligible contamination from secondary plant products. Further, minimal processing may involve aqueous extraction of soluble protein from leaves, followed by precipitation with any suitable salt. Other methods may include large scale maceration and juice extraction in order to permit the direct use of the extract.

[0277]The plant matter, in the form of plant material or tissue may be orally delivered to a subject. The plant matter may be administered as part of a dietary supplement, along with other foods, or encapsulated. The plant matter or tissue may also be concentrated to improve or increase palatability, or provided along with other materials, ingredients, or pharmaceutical excipients, as required.

[0278]Examples of a subject or target organism that the VLPs of the present invention may be administered to include, but are not limited to, humans, primates, birds, water fowl, migratory birds, quail, duck, geese, poultry, chicken, swine, sheep, equine, horse, camel, canine, dogs, feline, cats, tiger, leopard, civet, mink, stone marten, ferrets, house pets, livestock, rabbits, mice, rats, guinea pigs or other rodents, seal, whale and the like. Such target organisms are exemplary, and are not to be considered limiting to the applications and uses of the present invention.

[0279]It is contemplated that a plant comprising the protein of interest, or expressing the VLP comprising the protein of interest may be administered to a subject or target organism, in a variety of ways depending upon the need and the situation. For example, the protein of interest obtained from the plant may be extracted prior to its use in either a crude, partially purified, or purified form. If the protein is to be purified, then it may be produced in either edible or non-edible plants. Furthermore, if the protein is orally administered, the plant tissue may be harvested and directly feed to the subject, or the harvested tissue may be dried prior to feeding, or an animal may be permitted to graze on the plant with no prior harvest taking place. It is also considered within the scope of this invention for the harvested plant tissues to be provided as a food supplement within animal feed. If the plant tissue is being feed to an animal with little or not further processing it is preferred that the plant tissue being administered is edible.

[0280]Post-transcriptional gene silencing (PTGS) may be involved in limiting expression of transgenes in plants, and co-expression of a suppressor of silencing from the potato virus Y (HcPro) may be used to counteract the specific degradation of transgene mRNAs (Brigneti et al., 1998). Alternate suppressors of silencing are well known in the art and may be used as described herein (Chiba et al., 2006, Virology 346:7-14; which is incorporated herein by reference), for example but not limited to, TEV-p1/HC-Pro (Tobacco etch virus-p1/HC-Pro), BYV-p21, p19 of Tomato bushy stunt virus (TBSV p19), capsid protein of Tomato crinkle virus (TCV-CP), 2b of Cucumber mosaic virus; CMV-2b), p25 of Potato virus X (PVX-p25), p11 of Potato virus M (PVM-p11), p11 of Potato virus S (PVS-p11), p16 of Blueberry scorch virus, (BScV-p16), p23 of Citrus tristeza virus (CTV-p23), p24 of Grapevine leafroll-associated virus-2, (GLRaV-2 p24), p10 of Grapevine virus A, (GVA-p10), p14 of Grapevine virus B (GVB-p14), p10 of Heracleum latent virus (HLV-p10), or p16 of Garlic common latent virus (GCLV-p16). Therefore, a suppressor of silencing, for example, but not limited to, HcPro, TEV-p1/HC-Pro, BYV-p21, TBSV p19, TCV-CP, CMV-2b, PVX-p25, PVM-p11, PVS-p11, BScV-p16, CTV-p23, GLRaV-2 p24, GBV-p14, HLV-p10, GCLV-p16 or GVA-p10, may be co-expressed along with the nucleic acid sequence encoding the protein of interest to further ensure high levels of protein production within a plant.

[0281]Furthermore, VLPs may be produced that comprise a combination of HA subtypes. For example, VLPs may comprise one or more than one HA from the subtype H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, H16, type B, or a combination thereof. Selection of the combination of HAs may be determined by the intended use of the vaccine prepared from the VLP. For example a vaccine for use in inoculating birds may comprise any combination of HA subtypes, while VLPs useful for inoculating humans may comprise subtypes one or more than one of subtypes H1, H2, H3, H5, H6, H7, H9 or B. However, other HA subtype combinations may be prepared depending upon the use of the VLP. In order to produce VLPs comprising combinations of HA subtypes, the desired HA subtype may be co-expressed within the same cell, for example a plant cell.

[0282]Furthermore, VLPs produced as described herein do not comprise neuraminidase (NA). However, NA may be co-expressed with HA should VLPs comprising HA and NA be desired.

[0283]Therefore, the present invention further includes a suitable vector comprising the chimeric construct suitable for use with either stable or transient expression systems. The genetic information may be also provided within one or more than one construct. For example, a nucleotide sequence encoding a protein of interest may be introduced in one construct, and a second nucleotide sequence encoding a protein that modifies glycosylation of the protein of interest may be introduced using a separate construct. These nucleotide sequences may then be co-expressed within a plant. However, a construct comprising a nucleotide sequence encoding both the protein of interest and the protein that modifies glycosylation profile of the protein of interest may also be used. In this case the nucleotide sequence would comprise a first sequence comprising a first nucleic acid sequence encoding the protein of interest operatively linked to a promoter or regulatory region, and a second sequence comprising a second nucleic acid sequence encoding the protein that modifies the glycosylation profile of the protein of interest, the second sequence operatively linked to a promoter or regulatory region.

[0284]By "co-expressed" it is meant that two, or more than two, nucleotide sequences are expressed at about the same time within the plant, and within the same tissue of the plant. However, the nucleotide sequences need not be expressed at exactly the same time. Rather, the two or more nucleotide sequences are expressed in a manner such that the encoded products have a chance to interact. For example, the protein that modifies glycosylation of the protein of interest may be expressed either before or during the period when the protein of interest is expressed so that modification of the glycosylation of the protein of interest takes place. The two or more than two nucleotide sequences can be co-expressed using a transient expression system, where the two or more sequences are introduced within the plant at about the same time under conditions that both sequences are expressed. Alternatively, a platform plant comprising one of the nucleotide sequences, for example the sequence encoding the protein that modifies the glycosylation profile of the protein of interest, may be transformed, either transiently or in a stable manner, with an additional sequence encoding the protein of interest. In this case, the sequence encoding the protein that modifies the glycosylation profile of the protein of interest may be expressed within a desired tissue, during a desired stage of development, or its expression may be induced using an inducible promoter, and the additional sequence encoding the protein of interest may be expressed under similar conditions and in the same tissue, to ensure that the nucleotide sequences are co-expressed.

[0285]The constructs of the present invention can be introduced into plant cells using Ti plasmids, Ri plasmids, plant virus vectors, direct DNA transformation, micro-injection, electroporation, infiltration, and the like. For reviews of such techniques see for example Weissbach and Weissbach, Methods for Plant Molecular Biology, Academy Press, New York VIII, pp. 421-463 (1988); Geierson and Corey, Plant Molecular Biology, 2d Ed. (1988); and Miki and Iyer, Fundamentals of Gene Transfer in Plants. In Plant Metabolism, 2d Ed. D T. Dennis, D H Turpin, D D Lefebrve, D B Layzell (eds), Addison-Wesley, Langmans Ltd. London, pp. 561-579 (1997). Other methods include direct DNA uptake, the use of liposomes, electroporation, for example using protoplasts, micro-injection, microprojectiles or whiskers, and vacuum infiltration. See, for example, Bilang, et al. (Gene 100: 247-250 (1991), Scheid et al. (Mol. Gen. Genet. 228: 104-112, 1991), Guerche et al. (Plant Science 52: 111-116, 1987), Neuhause et al. (Theor. Appl Genet. 75: 30-36, 1987), Klein et al., Nature 327: 70-73 (1987); Howell et al. (Science 208: 1265, 1980), Horsch et al. (Science 227: 1229-1231, 1985), DeBlock et al., Plant Physiology 91: 694-701, 1989), Methods for Plant Molecular Biology (Weissbach and Weissbach, eds., Academic Press Inc., 1988), Methods in Plant Molecular Biology (Schuler and Zielinski, eds., Academic Press Inc., 1989), Liu and Lomonossoff (J. Virol Meth, 105:343-348, 2002), U.S. Pat. Nos. 4,945,050; 5,036,006; 5,100,792; 6,403,865; 5,625,136, (all of which are hereby incorporated by reference).

[0286]Transient expression methods may be used to express the constructs of the present invention (see Liu and Lomonossoff, 2002, Journal of Virological Methods, 105:343-348; which is incorporated herein by reference). Alternatively, a vacuum-based transient expression method, as described by Kapila et al. 1997 (incorporated herein by reference) may be used. These methods may include, for example, but are not limited to, a method of Agro-inoculation or Agro-infiltration, however, other transient methods may also be used as noted above. With either Agro-inoculation or Agro-infiltration, a mixture of Agrobacteria comprising the desired nucleic acid enter the intercellular spaces of a tissue, for example the leaves, aerial portion of the plant (including stem, leaves and flower), other portion of the plant (stem, root, flower), or the whole plant. After crossing the epidermis the Agrobacterium infect and transfer t-DNA copies into the cells. The t-DNA is episomally transcribed and the mRNA translated, leading to the production of the protein of interest in infected cells, however, the passage of t-DNA inside the nucleus is transient.

[0287]If the nucleotide sequence of interest encodes a product that is directly or indirectly toxic to the plant, then by using the method of the present invention, such toxicity may be reduced throughout the plant by selectively expressing the nucleotide sequence of interest within a desired tissue or at a desired stage of plant development. In addition, the limited period of expression resulting from transient expression may reduce the effect when producing a toxic product in the plant. An inducible promoter, a tissue-specific promoter, or a cell specific promoter, may be used to selectively direct expression of the sequence of interest.

[0288]The recombinant HA VLPs of the present invention can be used in conjunction with existing influenza vaccines, to supplement the vaccines, render them more efficacious, and to reduce the administration dosages necessary. As would be known to a person of skill in the art, the vaccine may be directed against one or more than one influenza virus. Examples of suitable vaccines include, but are not limited to, those commercially available from Sanofi-Pasteur, ID Biomedical, Merial, Sinovac, Chiron, Roche, Medlmmune, GlaxoSmithKline, Novartis, Sanofi-Aventis, Serono, Shire Pharmaceuticals and the like.

[0289]If desired, the VLPs of the present invention may be admixed with a suitable adjuvant as would be known to one of skill in the art. Furthermore, the VLP may be used in a vaccine composition comprising an effective dose of the VLP for the treatment of a target organism, as defined above. Furthermore, the VLP produced according to the present invention may be combined with VLPs obtained using different influenza proteins, for example, neuraminidase (NA).

[0290]Therefore, the present invention provides a method for inducing immunity to influenza virus infection in an animal or target organism comprising administering an effective dose of a vaccine comprising one or more than one VLP. The vaccine may be administered orally, intradermally, intranasally, intramuscularly, intraperitoneally, intravenously, or subcutaneously.

[0291]Administration of VLPs produced according to the present invention is described in Example 6. Administration of plant-made H5 VLP resulted in a significantly higher response when compared to administration of soluble HA (see FIGS. 21A and 21B).

[0292]As shown in FIGS. 26A and 26 B a subject administered A/Indonesia/5/05H5 VLPs is provided cross-protection to a challenge with influenza A/Turkey/582/06 (H5N1; "Turkey H5N1"). Administration of Indonesia H5 VLPs before challenge did not result in any loss of body mass. However in subject not administered H5 VLPs, but challenged with Turkey H5N1, exhibited significant loss of body mass, and several subject died.

[0293]These data, therefore, demonstrate that plant-made influenza VLPs comprising the H5 hemagglutinin viral protein induce an immune response specific for pathogenic influenza strains, and that virus-like particles may bud from a plant plasma membrane.

[0294]Therefore, the present invention provides a composition comprising an effective dose of a VLP comprising an influenza virus HA protein, one or more than one plant lipid, and a pharmaceutically acceptable carrier. The influenza virus HA protein may be H5 Indonesia/5/2006, A/Brisbane/50/2007, A/Sololmon Islands 3/2006, A/Brisbane/10/2007, A/Wisconsin/67/2005, B/Malaysia/2506/2005, B/Florida/4/2006, A/Singapore/1/57, A/Anhui/1/2005, A/Vietnam/1194/2004, A/Teal/HongKong/W312/97, A/Equine/Prague/56 or A/HongKong/1073/99. Also provided is a method of inducing immunity to an influenza virus infection in a subject. The method comprising administering the virus like particle comprising an influenza virus HA protein, one or more than one plant lipid, and a pharmaceutically acceptable carrier. The virus like particle may be administered to a subject orally, intradermally, intranasally, intramusclarly, intraperitoneally, intravenously, or subcutaneously.

[0295]Compositions according to various embodiments of the invention may comprise VLPs of two or more influenza strains or subtypes. "Two or more" refers to two, three, four, five, six, seven, eight, nine, 10 or more strains or subtypes. The strains or subtypes represented may be of a single subtype (e.g. all H1N1, or all H5N1), or may be a combination of subtypes. Exemplary subtype and strains include, but are not limited to, those disclosed herein (e.g. A/New Calcdonia/20/99 (H1N1)A/Indonesia/5/2006 (H5N1), A/chicken/New York/1995, A/herring gull/DE/677/88 (H2N8), A/Texas/32/2003, A/mallard/MN/33/00, A/duck/Shanghai/1/2000, A/northern pintail/TX/828189/02, A/Turkey/Ontario/6118/68 (H8N4), A/shoveler/Iran/G54/03, A/chicken/Germany/N/1949 (H10N7), A/duck/England/56 (H11N6), A/duck/Alberta/60/76 (H12N5), A/Gull/Maryland/704/77 (H13N6), A/Mallard/Gurjev/263/82, A/duck/Australia/341/83 (H15N8), A/black-headed gull/Sweden/5/99 (H16N3), B/Lee/40, C/Johannesburg/66, A/PuertoRico/8/34 (H1N1), A/Brisbane/59/2007 (H1N1), A/Solomon Islands 3/2006 (H1N1), A/Brisbane 10/2007 (H3N2), A/Wisconsin/67/2005 (H3N2), B/Malaysia/2506/2004, B/Florida/4/2006, A/Singapore/1/57 (H2N2), A/Anhui/1/2005 (H5N1), A/Vietnam/1194/2004 (H5N1), A/Teal/HongKong/W312/97 (H6N1), A/Equine/Prague/56 (H7N7), A/HongKong/1073/99 (H9N2)).

[0296]The choice of combination of strains and subtypes may depend on the geographical area of the subjects likely to be exposed to influenza, proximity of animal species to a human population to be immunized (e.g. species of waterfowl, agricultural animals such as swine, etc) and the strains they carry, are exposed to or are likely to be exposed to, predictions of antigenic drift within subtypes or strains, or combinations of these factors. Examples of combinations used in past years are available (see URL: who.int/csr/disease/influenza/vaccine recommendations)/en). Some or all of these strains may be employed in the combinations shown, or in other combinations, in the production of a vaccine composition.

[0297]More particularly, exemplary combinations may include VLPs from two or more strains or subtypes selected from the group comprising: A/Brisbane/59/2007 (H1N1), an A/Brisbane/59/2007 (H1N1)-like virus, A/Brisbane/10/2007 (H3N2), an A/Brisbane/10/2007 (H3N2)-like virus, B/Florida/4/2006 or an B/Florida/4/2006-like virus.

[0298]Another exemplary combination may include VLPs from two or more strains or subtypes selected from the group comprising A/Indonesia/5/2005, an A/Indonesia/5/2005-like virus, A/Vietnam/1194/2004, an A/Vietnam/1194/2004-like virus, A/Anhui/1/05, an A/Anhui/1/05-like virus, A/goose/Guiyang/337/2006, A/goose/Guiyang/337/2006--like virus, A/chicken/Shanxi/2/2006, or A/chicken/Shanxi/2/2006-like virus.

[0299]Another exemplary combination may include VLPs of A/Chicken/Italy/13474/99 (H7 type) or A/Chicken/British Columbia/04 (H7N3) strains of influenza.

[0300]Another exemplary combination may include VLPs of A/Chicken/HongKong/G9/97 or A/HongKong/1073/99. Another exemplary combination may comprise VLPs of A/Solomon Islands/3/2006. Another exemplary combination may comprise VLPs of A/Brisbane/10/2007. Another exemplary combination may comprise VLPs of A/Wisconsin/67/2005. Another exemplary combination may comprise VLPs of the B/Malaysia/2506/2004, B/Florida/4/2006 or B/Brisbane/3/2007 strains or subtypes.

[0301]The two or more VLPs may be expressed individually, and the purified or semi-purified VLPs subsequently combined. Alternately, the VLPs may be co-expressed in the same host, for example a plant. The VLPs may be combined or produced in a desired ratio, for example about equivalent ratios, or may be combined in such a manner that one subtype or strain comprises the majority of the VLPs in the composition.

[0302]Therefore, the invention provides for compositions comprising VLPs of two or more strains or subtypes.

[0303]VLPs of enveloped viruses generally acquire their envelope from the membrane they bud through. Plant plasma membranes have a phytosterol complement that may have immunostimulatory effects. To investigate this possibility, plant-made H5 VLPs were administered to animals in the presence or absence of an adjuvant, and the HAI (hemagglutination inhibition antibody response) determined (FIGS. 22A, 22B). In the absence of an added adjuvant plant-made H5 VLPs demonstrate a significant HAI, indicative of a systemic immune response to administration of the antigen. Furthermore, the antibody isotype profiles of VLPs administered in the present or absence of adjuvant are similar (FIG. 23A).

Table 5 lists sequences provided in various embodiments of the invention.

TABLE-US-00006 TABLE 5 Sequence description for sequence identifiers. SEQ ID No Sequence Description In Disclosure 1 N terminal H1 fragment FIG. 4a 2 C terminal H1 fragment FIG. 4b 3 H5 coding sequence FIG. 6 4 primer Plato-443c FIG. 7a 5 primer SpHA(Ind)-Plasto.r FIG. 7b 6 primer Plasto-SpHA(Ind).c FIG. 7c 7 primer HA(Ind)-Sac.r FIG. 7d 8 Sequence of the alfalfa plastocyanin-based FIG. 1 expression cassette used for the expression of H1 9 HA1 peptide sequence (A/New FIG. 8a Caledonia/20/99) 10 HA5 peptide sequence FIG. 8b (A/Indonesia/5/2006) 11 Influenza A Subtype H7 coding sequence FIG. 9 (A/chicken/New York/1995) 12 Influenza A Subtype H2 coding sequence FIG. 10a (A/herring gull/DE/677/88 (H2N8)) 13 Influenza A Subtype H3 coding sequence FIG. 10b (A/Texas/32/2003) 14 Influenza A Subtype H4 coding sequence FIG. 10c (A/mallard/MN/33/00) 15 Influenza A Subtype H5 coding sequence FIG. 10d (A/duck/Shanghai/1/2000) 16 Influenza A Subtype H6 coding sequence FIG. 10E (A/northern pintail/TX/828189/02) 17 Influenza A Subtype H8 coding sequence FIG. 10f (A/Turkey/Ontario/6118/68(H8N4)) 18 Influenza A Subtype H9 coding sequence FIG. 10g (A/shoveler/Iran/G54/03) 19 Influenza A Subtype H10 coding sequence FIG. 10h (A/chicken/Germany/N/1949 (H10N7)) 20 Influenza A Subtype H11 coding sequence FIG. 10i (A/ducic/England/56(H11N6)) 21 Influenza A Subtype H12 coding sequence FIG. 10j (A/duck/Alberta/60/76(H12N5)) 22 Influenza A Subtype H13 coding sequence FIG. 10k (A/Gull/Maryland/704/77 (H13N6)) 23 Influenza A Subtype H14 coding sequence FIG. 10l (A/Mallard/Gurjev/263/82) 24 Influenza A Subtype H15 coding sequence FIG. 10m (A/duck/Australia/341/83 (H15N8)) 25 Influenza A Subtype H16 coding sequence FIG. 10n (A/black-headed gull/Sweden/5/99(H16N3)) 26 Influenza B HA coding sequence FIG. 10o (B/Lee/40) 27 Influenza C HA coding sequence FIG. 10p (C/Johannesburg/66) 28 Complete HAO H1 sequence FIG. 5 29 Primer XmaI-pPlas.c FIG. 10q 30 Primer SacI-ATG-pPlas.r FIG. 10r 31 Primer SacI-PlasTer.c FIG. 10s 32 Primer EcoRI-PlasTer.r FIG. 10t 33 A/New Caledonia/20/99 (H1N1) FIG. 16 GenBank Accession No. AY289929 34 M. Sativa protein disulfide isomerase FIG. 17 GenBank Accession No. Z11499 35 A/.PuertoRico/8/34 (H1N1) FIG. 18 GenBank Accession No. NC_002016.1 36 Clone 774: DNA from DraIII to Sac1 FIG. 28 comprising plastocyanin regulatory region operatively linked to sequence encoding HA of A/Brisbane/59/2007 (H1N1) 37 Clone 775: DNA from DraIII to FIG. 29 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of A/Solomon Islands 3/2006 (H1N1) 38 Clone 776: DNA from DraIII to FIG. 30 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of A/Brisbane 10/2007 (H3N2) 39 Clone 777: DNA from DraIII to FIG. 31 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of A/Wisconsin/67/2005 (H3N2) 40 Clone 778: DNA from DraIII to FIG. 32 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of B/Malaysia/2506/2004 41 Clone 779: DNA from DraIII to FIG. 33 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of B/Florida/4/2006 42 Clone 780: DNA from DraIII to FIG. 34 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of A/Singapore/1/57 (H2N2) 43 Clone 781: DNA from DraIII to FIG. 35 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of A/Anhui/1/2005 (H5N1) 44 Clone 782: DNA from DraIII to FIG. 36 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of A/Vietnam/1194/2004 (H5N1) 45 Clone 783: DNA from DraIII to FIG. 37 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of A/Teal/HongKong/W312/97 (H6N1) 46 Clone 784: DNA from DraIII to FIG. 38 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of A/Equine/Prague/56 (H7N7) 47 Clone 785: DNA from DraIII to FIG. 39 Sac1comprising plastocyanin regulatory region operatively linked to sequence encoding HA of A/HongKong/1073/99 (H9N2) 48 Clone 774 HA amino acid sequence FIG. 40A A/Brisbane/59/2007 (H1N1) 49 Clone 775 HA amino acid sequence FIG. 40B A/Solomon Islands 3/2006 (H1N1) 50 Clone 776 HA amino acid sequence FIG. 41A A/Brisbane 10/2007 (H3N2) 51 Clone 777 HA amino acid sequence FIG. 41B A/Wisconsin/67/2005 (H3N2) 52 Clone 778 HA amino acid sequence FIG. 42A B/Malaysia/2506/2004 53 Clone 779 HA amino acid sequence FIG. 42B B/Florida/4/2006 54 Clone 780 HA amino acid sequence FIG. 43A A/Singapore/1/57 (H2N2) 55 Clone 781 HA amino acid sequence FIG. 43B A/Anhui/1/2005 (H5N1) 56 Clone 782 HA amino acid sequence FIG. 44A A/Vietnam/1194/2004 (H5N1) 57 Clone 783 HA amino acid sequence FIG. 44B A/Teal/HongKong/W312/97 (H6N1) 58 Clone 784 HA amino acid sequence FIG. 45A A/Equine/Prague/56 (H7N7) 59 Clone 785 HA amino acid sequence FIG. 45B A/HongKong/1073/99 (H9N2) 60 HA expression cassette comprising alfalfa FIG. 51 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H5 from A/Indonesia/5/2005 (Construct # 660), alfalfa plastocyanin 3' UTR and terminator sequences 61 HA expression cassette comprising alfalfa FIG. 52 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H1 from A/New Caledonia/20/1999 (Construct # 540), alfalfa plastocyanin 3' UTR and terminator sequences 62 HA expression cassette comprising alfalfa FIG. 53 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H1 from A/Brisbane/59/2007 (construct #774), alfalfa plastocyanin 3' UTR and terminator sequences 63 HA expression cassette comprising alfalfa FIG. 54 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H1 from A/Solomon Islands/3/2006 (H1N1) (construct #775), alfalfa plastocyanin 3' UTR and terminator sequences 64 HA expression cassette comprising alfalfa FIG. 55 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H2 from A/Singapore/1/57 (H2N2) (construct # 780), alfalfa plastocyanin 3' UTR and terminator sequences 65 HA expression cassette comprising alfalfa FIG. 56 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H5 from A/Anhui/1/2005 (H5N1) (Construct# 781), alfalfa plastocyanin 3' UTR and terminator sequences 66 HA expression cassette comprising alfalfa FIG. 57 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H5 from A/Vietnam/1194/2004 (H5N1) (Construct # 782), alfalfa plastocyanin 3' UTR and

terminator sequences 67 HA expression cassette comprising alfalfa FIG. 58 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H6 from A/Teal/Hong Kong/W312/97 (H6N1) (Construct # 783), alfalfa plastocyanin 3' UTR and terminator sequences 68 HA expression cassette comprising alfalfa FIG. 59 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H9 from A/Hong Kong/1073/99 (H9N2) (Construct # 785), alfalfa plastocyanin 3' UTR and terminator sequences 69 HA expression cassette comprising alfalfa FIG. 60 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H3 from A/Brisbane/10/2007 (H3N2), alfalfa plastocyanin 3' UTR and terminator sequences 70 HA expression cassette comprising alfalfa FIG. 61 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H3 from A/Wisconsin/67/2005 (H3N2), alfalfa plastocyanin 3' UTR and terminator sequences 71 HA expression cassette comprising alfalfa FIG. 62 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of H7 from A/Equine/Prague/56 (H7N7), alfalfa plastocyanin 3' UTR and terminator sequences 72 HA expression cassette comprising alfalfa FIG. 63 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of HA from B/Malaysia/2506/2004, alfalfa plastocyanin 3' UTR and terminator sequences 73 HA expression cassette comprising alfalfa FIG. 64 plastocyanin promoter and 5' UTR, hemagglutinin coding sequence of HA from B/Florida/4/2006, alfalfa plastocyanin 3' UTR and terminator sequences 74 Consensus amino acid sequence of SEQ ID FIG. 65 NO: 49, 48, 33 and 9 75 Amino acid sequence of H1 New Caledonia FIG. 66 (AAP34324.1) encoded by SEQ ID NO: 33 76 Amino acid sequence of H1 Puerto Rico FIG. 67 (NC_0409878.1) encoded by SEQ ID NO: 35 77 pBinPlus.2613c AGGAAGGGAAGAAA GCGAAAGGAG 78 Mut-ATG115.r GTGCCGAAGCACGAT CTGACAACGTTGAAG ATCGCTCACGCAAGA AAGACAAGAGA 79 Mut-ATG161.c GTTGTCAGATCGTGC TTCGGCACCAGTACA ACGTTTTCTTTCACTG AAGCGA 80 LC-C5-1.110r TCTCCTGGAGTCACA GACAGGGTGG 81 Expression cassette number 828, from PacI FIG. 68 (upstream promoter) to AscI (immediately downstream NOS terminator). 82 SpPDI-HA(Ind).c GTTCCTTCTCAGATCT TCGCTGATCAGATTT GCATTGGTTACCATG CA 83 Construct number 663, from HindIII (in the FIG. 69 multiple cloning site, upstream Plastocyanine promoter) to EcoRI (immediately downstream Plastocynine terminator). 84 SpPDI-H1B.c TTCTCAGATCTTCG CTGACACAATATGT ATAGGCTACCATGC TAACAAC 85 SacI-H1B.r CTTAGAGCTCTTAG ATGCATATTCTACA CTGTAAAGACCCAT TGGAA 86 Construct number 787, from HindIII (in the FIG. 70 multiple cloning site, upstream Plastocyanine promoter) to EcoRI (immediately downstream Plastocynine terminator) 87 H3B-SpPDI.r TGTCATTTCCGGGA AGTTTTTGAGCGAA GATCTGAGAAGGA ACCA 88 SpPDI-H3B.c TCTCAGATCTTCG CTCAAAAACTTCCC GGAAATGACAACA GCACG 89 H3(A-Bri).982r TTGCTTAACATATC TGGGACAGG 90 Construct number 790, from HindIII (in the FIG. 7 multiple cloning site, upstream Plastocyanine promoter) to EcoRI (immediately downstream Plastocynine terminator). 91 HBF-SpPDI.r GTTATTCCAGTGCA GATTCGATCAGCGA AGATCTGAGAAGG AACCAACAC 92 SpPDI-HBF.c CAGATCTTCGCTGA TCGAATCTGCACTG GAATAACATCTTCA AACTCACC 93 Plaster80r CAAATAGTATTTCA TAACAACAACGATT 94 Construct number 798, from HindIII (in the FIG. 72 multiple cloning site, upstream Plastocyanine promoter) to EcoRI (immediately downstream Plastocynine terminator). 95 ApaI-SpPDI.c TTGTCGGGCCCAT GGCGAAAAACGTT GCGATTTTCGGCTT ATTGT 96 StuI-H1(A-NC).r AAAATAGGCCTTT AGATGCATATTCTA CACTGCAAAGACCCA 97 Construct number 580, from PacI (upstream FIG. 73 35S promoter) to AscI (immediately downstream NOS terminator). 98 ApaI-H5 (A-Indo).1c TGTCGGGCCCATG GAGAAAATAGTGCT TCTTCTTGCAAT 99 H5 (A-Indo)-StuI.1707r AAATAGGCCTTTA AATGCAAATTCTGC ATTGTAACGA 100 Construct number 685, from PacI (upstream FIG. 74 35S promoter) to AscI (immediately downstream NOS terminator). 101 Construct number 686, from PacI (upstream FIG. 75 35S promoter) to AscI (immediately downstream NOS terminator) 102 ApaI-H1B.c TGTCGGGCCCATG AAAGTAAAACTACT GGTCCTGTTATGCA CATT 103 StuI-H2B.r AAATAGGCCTTTA GATGCATATTCTAC ACTGTAAAGACCCA TTGGA 104 Construct 732, from Pad (upstream 35S FIG. 76 promoter) to AscI (immediately downstream NOS terminator). 105 Construct number 733, from PacI (upstream FIG. 77 35S promoter) to AscI (immediately downstream NOS terminator). 106 ApaI-H3B.c TTGTCGGGCCCAT GAAGACTATCATTG CTTTGAGCTACATT CTATGTC 107 StuI-H3B.r AAAATAGGCCTTC AAATGCAAATGTTG CACCTAATGTTGCC TTT 108 Construct number 735, from PacI (upstream FIG. 78 35S promoter) to AscI (immediately downstream NOS terminator). 109 Construct number 736, from PacI (upstream FIG. 79 35S promoter) to AscI (immediately downstream NOS terminator). 110 ApI-HBF.c TTGTCGGGCCCAT GAAGGCAATAATTG TACTACTCATGGTA GTAAC 111 StuI-HBF.r AAAATAGGCCTTT ATAGACAGATGGA GCATGAAACGTTGT CTCTGG 112 Construct number 738, from PacI (upstream FIG. 80 35S promoter) to AscI (immediately downstream NOS terminator). 113 Construct number 739, from PacI (upstream FIG. 81 35S promoter) to AscI (immediately downstream NOS terminator). 114 M. sativa Msj1 coding sequence FIG. 82 115 Hsp-40Luz.1c ATGTTTGGGCGCGG ACCAAC 116 Hsp40Luz-SacI.1272r AGCT CTAC TGTTGAGCGCATTG CAC 117 Hsp40Luz-Plasto.r GTTGGTCCGCGCCC AAACATTTTCTCTC AAGATGAT 118 Hsp70Ara.1c ATGTCGGGTAAAGG AGAAGGA 119 Hsp70Ara-SacI.1956r AGCT TTAG TCGACCTCCTCGAT CTTAG 120 Hsp70Ara-Plasto.r TCCTTCTCCTTTACC CGACATTTTCTCTC

AAGATGAT 121 Construct number R850, from HindIII (in FIG. 83 the multiple cloning site, upstream promoter) to EcoRI (immediately downstream NOS terminator). 122 Construct number R860, from HindIII (in FIG. 84 the multiple cloning site, upstream promoter) to EcoRI (immediately downstream NOS terminator) 123 Construct number R870, from HindIII (in FIG. 85 the multiple cloning site, upstream promoter) to EcoRI (immediately downstream NOS terminator). 124 supP19-plasto.r CCTTGTATAGCTCG TTCCATTTTCTCTCA AGATG 125 supP19-1c ATGGAACGAGCTAT ACAAGG 126 SupP19-SacI.r AGTCGAGCTCTTAC TCGCTTTCTTTTTCG AAG

[0304]The invention will now be described in detail by way of reference only to the following non-limiting examples.

Methods and Materials

1. Assembly of Plastocyanin-Based Expression Cassettes for Native HA

[0305]All manipulations were done using the general molecular biology protocols of Sambrook and Russell (2001; which is incorporated herein by reference). The first cloning step consisted in assembling a receptor plasmid containing upstream and downstream regulatory elements of the alfalfa plastocyanin gene. The plastocyanin promoter and 5'UTR sequences were amplified from alfalfa genomic DNA using oligonucleotide primers XmaI-pPlas.c (SEQ ID NO: 29; FIG. 10Q) and SacI-ATG-pPlas.r (SEQ ID NO: 30; FIG. 10R). The resulting amplification product was digested with XmaI and SacI and ligated into pCAMBIA2300 (Cambia, Canberra, Australia), previously digested with the same enzymes, to create pCAMBIApromo Plasto. Similarly, the 3'UTR sequences and terminator of the plastocyanin gene was amplified from alfalfa genomic DNA using the following primers: SacI-PlasTer.c (SEQ ID NO: 31; FIG. 10S) and EcoRI-PlasTer.r (SEQ ID NO: 32; FIG. 10T), and the product was digested with SacI and EcoRI before being inserted into the same sites of pCAMBIApromoPlasto to create pCAMBIAPlasto.

[0306]A fragment encoding hemagglutinin from influenza strain A/Indonesia/5/05 (H5N1; Acc. No. LANL ISDN125873) was synthesized by Epoch Biolabs (Sugar Land, Tex., USA). The fragment produced, containing the complete H5 coding region including the native signal peptide flanked by a HindIII site immediately upstream of the initial ATG, and a Sad site immediately downstream of the stop (TAA) codon, is presented in SEQ ID NO: 3 (FIG. 6). The H5 coding region was cloned into a plastocyanin-based expression cassette by the PCR-based ligation method presented in Darveau et al. (1995). Briefly, a first PCR amplification was obtained using primers Plato-443c (SEQ ID NO: 4; FIG. 7A) and SpHA(Ind)-Plasto.r (SEQ ID NO:5; FIG. 7B) and pCAMBIA promoPlasto as template. In parallel, a second amplification was performed with primers Plasto-SpHA(Ind).c (SEQ ID NO: 6; FIG. 7C) and HA(Ind)-Sac.r (SEQ ID NO:7; FIG. 7D) with H5 coding fragment as template. The amplification obtained from both reactions were mixed together and the mixture served as template for a third reaction (assembling reaction) using Plato-443c (SEQ ID NO: 4; FIG. 7A) and HA(Ind)-Sac.r (SEQ ID NO: 7; FIG. 7D) as primers. The resulting fragment was digested with BamHI (in the plastocyanin promoter) and SacI (at the 3' end of the fragment) and cloned into pCAMBIAPlasto previously digested with the same enzymes. The resulting plasmid, named 660, is presented in FIG. 2B (also see FIG. 11).

[0307]Hemagglutinin expression cassettes number 774 to 785 were assembled as follows. A synthetic fragment was synthesized comprising the complete hemagglutinin coding sequence (from ATG to stop) flanked in 3' by alfalfa plastocyanin gene sequences corresponding to the first 84 nucleotides upstream of the plastocyanin ATG and ending with a DraIII restriction site. The synthetic fragments also comprised a SacI site immediately after the stop codon.

[0308]Synthetic hemagglutinin fragments were synthesized by Top Gene Technologies (Montreal, QC, Canada) and Epoch Biolabs (Sugar Land, Tex., USA). The fragment synthesized are presented in FIGS. 28 to 39 and correspond to SEQ ID NO:36 to SEQ ID NO:47. For the assembly of the complete expression cassettes, the synthetic fragments were digested with DraIII and SacI and cloned into pCAMBIAPlasto previously digested with the same enzymes. Table 6 presents the cassettes produced with the corresponding HA and other references in the text.

TABLE-US-00007 TABLE 6 Hemagglutinin expression cassettes assembled from DraIII-SacI synthetic fragments. Synthetic fragment Synthetic Complete cassette Cassette fragment Final cassette number Corresponding HA FIG. SEQ ID NO FIG. SEQ ID NO 774 HA of A/Brisbane/59/2007 (H1N1) 28 36 53 62 775 HA of A/Solomon Islands 3/2006 (H1N1) 29 37 54 63 776 HA of A/Brisbane 10/2007 (H3N2) 30 38 60 69 777 HA of A/Wisconsin/67/2005 (H3N2) 31 39 61 70 778 HA of B/Malaysia/2506/2004 32 40 63 72 779 HA of B/Florida/4/2006 33 41 64 73 780 HA of A/Singapore/1/57 (H2N2) 34 42 55 64 781 HA of A/Anhui/1/2005 (H5N1) 35 43 56 65 782 HA of A/Vietnam/1194/2004 (H5N1) 36 44 57 66 783 HA of A/Teal/HongKong/W312/97 (H6N1) 37 45 58 67 784 HA of A/Equine/Prague/56 (H7N7) 38 46 62 71 785 HA of A/HongKong/1073/99 (H9N2) 39 47 59 68

Assembly of Plastocyanin-Based PDISP/HA-Fusion Expression Cassettes

H1 A/New Calcdonia/20/99 (Construct Number 540)

[0309]The open reading frame from the H1 gene of influenza strain A/New Calcdonia/20/99 (H1N1) was synthesized in two fragments (Plant Biotechnology Institute, National Research Council, Saskatoon, Canada). A first fragment synthesized corresponds to the wild-type H1 coding sequence (GenBank acc. No. AY289929; SEQ ID NO: 33; FIG. 16) lacking the signal peptide coding sequence at the 5' end and the transmembrane domain coding sequence at the 3' end. A BglII restriction site was added at the 5' end of the coding sequence and a dual SacI/StuI site was added immediately downstream of the stop codon at the 3' terminal end of the fragment, to yield SEQ ID NO: 1 (FIG. 5a). A second fragment encoding the C-terminal end of the H1 protein (comprising a transmembrane domain and cytoplasmic tail) from the KpnI site to the stop codon, and flanked in 3' by Sad and StuI restriction sites was also synthesized (SEQ ID NO. 2; FIG. 5B).

[0310]The first H1 fragment was digested with BglII and SacI and cloned into the same sites of a binary vector (pCAMBIAPlasto) containing the plastocyanin promoter and 5'UTR fused to the signal peptide of alfalfa protein disulfide isomerase (PDI) gene (nucleotides 32-103; Accession No. Z11499; SEQ ID NO: 34; FIG. 17) resulting in a PDI-H1 chimeric gene downstream of the plastocyanin regulatory elements. The sequence of the plastocyanin-based cassette containing the PDI signal peptide is presented in FIG. 1 (SEQ ID NO:8). The resulting plasmid contained H1 coding region fused to the PDI signal peptide and flanked by plastocyanin regulatory elements. The addition of the C-terminal end coding region (encoding the transmembrane domain and the cytoplasmic tail) was obtained by inserting the synthesized fragment (SEQ ID NO: 2; FIG. 5B) previously digested with KpnI and SacI, into the H1 expression plasmid. The resulting plasmid, named 540, is presented in FIG. 11 (also see FIG. 2A).

H5 A/Indonesia/5/2005 (Construct Number 663)

[0311]The signal peptide of alfalfa protein disulfide isomerase (PDISP) (nucleotides 32-103; Accession No. Z11499; SEQ ID NO: 34; FIG. 17) was linked to the HA0 coding sequence of H5 from A/Indonesia/5/2005 as follows. The 145 coding sequence was amplified with primers SpPDI-HA(Ind).c (SEQ ID NO:82) and HA(Ind)-SacI.r (SEQ ID NO: 7; FIG. 7D) using construct number 660 (SEQ ID NO:60; FIG. 51) as template. The resulting fragment consisted in the H5 coding sequence flanked, in 5', by the last nucleotides encoding PDISP (including a BglII restriction site) and, in 3', by a SacI restriction site. The fragment was digested with BglII and Sad and cloned into construct number 540 (SEQ ID NO:61; FIG. 52) previously digested with the same restriction enzymes. The final cassette, named construct number 663 (SEQ ID NO:83), is presented in FIG. 69.

H1 A/Brisbane/59/2007 (Construct 787)

[0312]The signal peptide of alfalfa protein disulfide isomerase (PDISP) (nucleotides 32-103; Accession No. Z11499; SEQ ID NO: 34; FIG. 17) was linked to the HA0 coding sequence of H1 from A/Brisbane/59/2007 as follows. The H1 coding sequence was amplified with primers SpPDI-H1B.c (SEQ ID NO: 84) and SacI-H1B.r (SEQ ID NO:85) using construct 774 (SEQ ID NO:62; FIG. 53) as template. The resulting fragment consisted in the H1 coding sequence flanked, in 5', by the last nucleotides encoding PDISP (including a BglII restriction site) and, in 3', by a SacI restriction site. The fragment was digested with BglII and Sad and cloned into construct number 540 (SEQ ID NO:61; FIG. 52) previously digested with the same restriction enzymes. The final cassette, named construct number 787 (SEQ ID NO:86), is presented in FIG. 70.

H3 A/Brisbane/10/2007 (Construct Number 790)

[0313]The signal peptide of alfalfa protein disulfide isomerase (PDISP) (nucleotides 32-103; Accession No. Z11499; SEQ ID NO: 34; FIG. 17) was linked to the HA0 coding sequence of H3 from A/Brisbane/10/2007 as follows. PDISP was linked to the H3 coding sequence by the PCR-based ligation method presented in Darveau et al. (Methods in Neuroscience 26: 77-85 (1995)). In a first round of PCR, a segment of the plastocyanine promoter fused to PDISP was amplified using primers Plasto-443c (SEQ ID NO: 4; FIG. 7A) and H3B-SpPDI.r (SEQ ID NO:87) with construct 540 (SEQ ID NO:61; FIG. 52) as template. In parallel, another fragment containing a portion of the coding sequence of H3 A/Brisbane/10/2007 (from codon 17 to the SpeI restriction site) was amplified with primers SpPDI-H3B.c (SEQ ID NO:88) and H3(A-Bri).982r (SEQ ID NO:89) using construct 776 (SEQ ID NO:69; FIG. 60) as template. Amplification products were then mixed and used as template for a second round of amplification (assembling reaction) with primers Plasto-443c (SEQ ID NO: 4; FIG. 7A) and H3(A-Bri).982r (SEQ ID NO:89). The resulting fragment was digested with BamHI (in the plastocyanin promoter) and SpeI (in the H3 coding sequence) and cloned into construct number 776 (SEQ ID NO:69; FIG. 60), previously digested with the same restriction enzymes to give construct number 790 (SEQ ID NO:90). The construct is presented in FIG. 71.

HA B/Florida/4/2006 (Construct Number 798)

[0314]The signal peptide of alfalfa protein disulfide isomerase (PDISP) (nucleotides 32-103; Accession No. Z11499; SEQ ID NO: 34; FIG. 17) was linked to the HA0 coding sequence of HA from HA B/Florida/4/2006 by the PCR-based ligation method presented in Darveau et al. (Methods in Neuroscience 26: 77-85 (1995)). In a first round of amplification, a portion of the plastocyanin promoter fused to the PDISP was amplified using primers Plasto-443c (SEQ ID NO: 4; FIG. 7A) and HBF-SpPDI.r (SEQ ID NO:91) with construct number 540 (SEQ ID NO:61; FIG. 52) as template. In parallel, another fragment containing a portion of the coding sequence of HB B/Flo fused to the plastocyanin terminator was amplified with primers SpPDI-HBF.c (SEQ ID NO:92) and Plaster80r (SEQ ID NO:93) using construct number 779 (SEQ ID NO:73; FIG. 64) as template. PCR products were then mixed and used as template for a second round of amplification (assembling reaction) with primers Plasto-443c (SEQ ID NO: 4; FIG. 7A) and Plaster80r (SEQ ID NO:93). The resulting fragment was digested with BamHI (in the plastocyanin promoter) and AflII (in the HA B/Florida/4/2006 coding sequence) and cloned into construct number 779 (SEQ ID NO:73; FIG. 64), previously digested with the same restriction enzymes to give construct number 798 (SEQ ID NO:94). The resulting expression cassette is presented in FIG. 72.

Assembly of CPMV-HT-Based Expression Cassettes

[0315]CPMV-HT expression cassettes use the 35S promoter to control the expression of an mRNA comprising a coding sequence of interest flanked, in 5' by nucleotides 1-512 from the Cowpea mosaic virus (CPMV) RNA2 with mutated ATG at positions 115 and 161 and in 3', by nucleotides 3330-3481 from the CPMV RNA2 (corresponding to the 3' UTR) followed by the NOS terminator. Plasmid pBD-05-1LC, (Sainsbury et al. 2008; Plant Biotechnology Journal 6: 82-92 and PCT Publication WO 2007/135480), was used for the assembly of CPMV-HT-based hemagglutinin expression cassettes. The mutation of ATGs at position 115 and 161 of the CPMV RNA2 was done using a PCR-based ligation method presented in Darveau et al. (Methods in Neuroscience 26: 77-85 (1995)). Two separate PCRs were performed using pBD-05-1LC as template. The primers for the first amplification are pBinPlus.2613c (SEQ ID NO: 77) and Mut-ATG115.r (SEQ ID NO: 78). The primers for the second amplification were Mut-ATG161.c (SEQ ID NO: 79) and LC-05-1.110r (SEQ ID NO: 80). The two obtained fragments are then mixed and used as template for a third amplification using pBinPlus.2613c (SEQ ID NO: 77) and LC-05-1.110r (SEQ ID NO: 80) as primers. Resulting fragment is digested with Pad and ApaI and cloned into pBD-05-1LC digested with the same enzyme. The sequence of the expression cassette generated, named 828, is presented in FIG. 68 (SEQ ID NO: 81).

Assembly of SpPDI-H1 A/New Calcdonia/20/99 in CPMV-HT Expression Cassette (Construct number 580).

[0316]A sequence encoding alfalfa PDI signal peptide fused to HA0 from H1 A/New Calcdonia/20/99 was cloned into CPMV-HT as follows. Restriction sites ApaI (immediately upstream of initial ATG) and StuI (immediately downstream stop codon) were added to the hemagglutinin coding sequence by performing a PCR amplification with primers ApaI-SpPDI.c (SEQ ID NO: 95) and StuI-H1(A-NC).r (SEQ ID NO: 96) using construct number 540 (SEQ ID NO:61; FIG. 52) as template. Resulting fragment was digested with ApaI and StuI restriction enzymes and cloned into construct number 828 (SEQ ID NO: 81) digested with the same enzymes. Resulting cassette was named construct number 580 (SEQ ID NO: 97).

Assembly of H5 A/Indonesia/5/2005 in CPMV-HT Expression Cassette (Construct Number 685).

[0317]The coding sequence of H5 from A/Indonesia/5/2005 was cloned into CPMV-HT as follows. Restriction sites ApaI (immediately upstream ATG) and StuI (immediately downstream stop codon) were added to the hemagglutinin coding sequence by performing a PCR amplification with primers ApaI-H5 (A-Indo). 1c (SEQ ID NO: 98) and H5 (A-Indo)-StuI.1707r (SEQ ID NO: 99) using construct number 660 (SEQ ID NO:60; FIG. 51) as template. Resulting fragment was digested with ApaI and StuI restriction enzymes and cloned into construct number 828 (SEQ ID NO: 81) digested with the same enzymes. Resulting cassette was named construct number 685 (SEQ ID NO:100).

Assembly of SpPDI-H5 A/Indonesia/5/2005 in CPMV-HT Expression Cassette (Construct Number 686).

[0318]A sequence encoding alfalfa PDI signal peptide fused to HA0 from H5 A/Indonesia/5/2005 was cloned into CPMV-HT as follows. Restriction sites ApaI (immediately upstream ATG) and StuI (immediately downstream stop codon) were added to the hemagglutinin coding sequence by performing a PCR amplification with primers ApaI-SpPDI.c (SEQ ID NO: 95) and H5 (A-Indo)-StuI.1707r (SEQ ID NO: 99) using construct number 663 (SEQ ID NO: 83) as template. Resulting fragment was digested with ApaI and StuI restriction enzymes and cloned into construct number 828 (SEQ ID NO: 81) digested with the same enzymes. Resulting cassette was named construct number 686 (SEQ ID NO: 101).

Assembly of H1 A/Brisbane/59/2007 in CPMV-HT Expression Cassette (Construct Number 732).

[0319]The coding sequence of HA from H1 A/Brisbane/59/2007 was cloned into CPMV-HT as follows. Restriction sites ApaI (immediately upstream ATG) and StuI (immediately downstream stop codon) were added to the hemagglutinin coding sequence by performing a PCR amplification with primers Anal-H1B.c (SEQ ID NO: 102) and StuI-H1B.r (SEQ ID NO: 103) using construct number 774 (SEQ ID NO:62; FIG. 53) as template. Resulting fragment was digested with ApaI and StuI restriction enzymes and cloned into construct number 828 (SEQ ID NO: 81) digested with the same enzymes. Resulting cassette was named construct number 732 (SEQ ID NO: 104).

Assembly of SpPDI-H1 A/Brisbane/59/2007 in CPMV-HT Expression Cassette (Construct Number 733).

[0320]A sequence encoding alfalfa PDI signal peptide fused to HA0 from H1 A/Brisbane/59/2007 was cloned into CPMV-HT as follows. Restriction sites ApaI (immediately upstream ATG) and StuI (immediately downstream stop codon) were added to the hemagglutinin coding sequence by performing a PCR amplification with primers ApaI-SpPDI.c (SEQ ID NO: 95) and StuI-H1B.r (SEQ ID NO: 103) using construct number 787 (SEQ ID NO: 86) as template. Resulting fragment was digested with ApaI and StuI restriction enzymes and cloned into construct number 828 (SEQ ID NO: 81) digested with the same enzymes. Resulting cassette was named construct number 733 (SEQ ID NO: 105).

Assembly of H3 A/Brisbane/10/2007 in CPMV-HT Expression Cassette (Construct Number 735).

[0321]The coding sequence of HA from H3 A/Brisbane/10/2007 was cloned into CPMV-HT as follows. Restriction sites ApaI (immediately upstream ATG) and StuI (immediately downstream stop codon) were added to the hemagglutinin coding sequence by performing a PCR amplification with primers ApaI-H3B.c (SEQ ID NO:106) and StuI-H3B.r (SEQ ID NO: 107) using construct number 776 (SEQ ID NO:69) as template. Resulting fragment was digested with ApaI and StuI restriction enzymes and cloned into construct number 828 (SEQ ID NO: 81) digested with the same enzymes. Resulting cassette was named construct number 735 (SEQ ID NO: 108).

Assembly of SpPDI-H3 A/Brisbane/10/2007 in CPMV-HT Expression Cassette (Construct Number 736).

[0322]A sequence encoding alfalfa PDI signal peptide fused to HA0 from 1-13 A/Brisbane/10/2007 was cloned into CPMV-HT as follows. Restriction sites ApaI (immediately upstream ATG) and StuI (immediately downstream stop codon) were added to the hemagglutinin coding sequence by performing a PCR amplification with primers ApaI-SpPDI.c (SEQ ID NO:95) and StuI-H3B.r (SEQ ID NO: 107) using construct number 790 (SEQ ID NO:90) as template. Resulting fragment was digested with ApaI and StuI restriction enzymes and cloned into construct number 828 (SEQ ID NO: 81) digested with the same enzymes. Resulting cassette was named construct number 736 (SEQ ID NO:109).

Assembly of HA B/Florida/4/2006 in CPMV-HT Expression Cassette (Construct Number 738).

[0323]The coding sequence of HA from B/Florida/4/2006 was cloned into CPMV-HT as follows. Restriction sites ApaI (immediately upstream ATG) and StuI (immediately downstream stop codon) were added to the hemagglutinin coding sequence by performing a PCR amplification with primers ApaI-HBF.c (SEQ ID NO: 110) and StuI-HBF.r (SEQ ID NO: 111) using construct number 779 (SEQ ID NO:73; FIG. 64) as template. Resulting fragment was digested with ApaI and StuI restriction enzymes and cloned into construct number 828 (SEQ ID NO: 81) digested with the same enzymes. Resulting cassette was named construct number 738 (SEQ ID NO: 112).

Assembly of SpPDI-HA B/Florida/4/2006 in CPMV-HT Expression Cassette (Construct number 739).

[0324]A sequence encoding alfalfa PDI signal peptide fused to HA0 from B/Florida/4/2006 was cloned into CPMV-HT as follows. Restriction sites ApaI (immediately upstream ATG) and StuI (immediately downstream stop codon) were added to the hemagglutinin coding sequence by performing a PCR amplification with primers ApaI-SpPDI.c (SEQ ID NO: 95) and StuI-HBF.r (SEQ ID NO: 111) using construct number 798 (SEQ ID NO: 94) as template. Resulting fragment was digested with ApaI and StuI restriction enzymes and cloned into construct number 828 (SEQ ID NO: 81) digested with the same enzymes. Resulting cassette was named construct number 739 (SEQ ID NO: 113).

Assembly of Chaperone Expression Cassettes

[0325]Two heat shock protein (Hsp) expression cassettes were assembled. In a first cassette, expression of the Arabidopsis thaliana (ecotype Columbia) cytosolic HSP70 (Athsp70-1 in Lin et al. (2001) Cell Stress and Chaperones 6: 201-208) is controlled by a chimeric promoter combining elments of the alfalfa Nitrite reductase (Nir) and alfalfa Plastocyanin promoters (Nir/Plasto). A second cassette comprising the coding region of the alfalfa cytosolic HSP40 (MsJ1; Frugis et al. (1999) Plant Molecular Biology 40: 397-408) under the control of the chimeric Nir/Plasto promoter was also assembled.

[0326]An acceptor plasmid containing the alfalfa Nitrite reductase promoter (Nir), the GUS reporter gene and NOS terminator in plant binary vector was first assembled. Plasmid pNir3K51 (previously described in U.S. Pat. No. 6,420,548) was digested with HindIII and EcoRI. The resulting fragment was cloned into pCAMBIA2300 (Cambia, Can berra, Australia) digested by the same restriction enzyme to give pCAMBIA-Nir3K51.

[0327]Coding sequences for Hsp70 and Hsp40 were cloned separately in the acceptor plasmid pCAMBIANir3K51 by the PCR-based ligation method presented in Darveau et al. (Methods in Neuroscience 26:77-85 (1995)).

[0328]For Hsp40, Msj1 coding sequence (SEQ ID NO: 114) was amplified by RT-PCR from alfalfa (ecotype Rangelander) leaf total RNA using primers Hsp40Luz.1c (SEQ ID NO: 115) and Hsp40Luz-SacI.1272r (SEQ ID NO: 116). A second amplification was performed with primers Plasto-443c (SEQ ID NO: 4; FIG. 7A) and Hsp40Luz-Plasto.r (SEQ ID NO: 117) with construct 660 (SEQ ID NO: 60; FIG. 51) as template. PCR products were then mixed and used as template for a third amplification (assembling reaction) with primers Plasto-443c (SEQ ID NO: 4; FIG. 7A) and Hsp40Luz-SacI.1272r (SEQ ID NO: 116). The resulting fragment was digested with HpaI (in the plastocyanin promoter) and cloned into pCAMBIANir3K₅₁, previously digested with HpaI (in the Nir promoter) and SacI, and filed with T4 DNA polymerase to generate blunt ends. Clones obtained were screened for correct orientation and sequenced for sequence integrity. The resulting plasmid, named R850, is presented in FIG. 83 (SEQ ID NO: 121). The coding region of the Athsp70-1 was amplified by RT-PCR from Arabidopsis leaf RNA using primers Hsp70Ara.1c (SEQ ID NO: 118) and Hsp70Ara-SacI.1956r (SEQ ID NO: 119). A second amplification was performed with primers Plato-443c (SEQ ID NO: 4; FIG. 7A) and Hsp70Ara-Plasto.r (SEQ ID NO: 120) with construct 660 (SEQ ID NO: 60; FIG. 51) as template. PCR products were then mixed and used as template for a third amplification (assembling reaction) with primers Plasto-443c (SEQ ID NO: 4; FIG. 7A) and Hsp70ARA-SacI.1956r (SEQ ID NO: 119). The resulting fragment was digested with HpaI (in the plastocyanin promoter) and cloned into pCAMBIANir3K₅₁ digested with HpaI (in the Nir promoter) and Sad and filed with T4 DNA polymerase to generate blunt ends. Clones obtained were screened for correct orientation and sequenced for sequence integrity. The resulting plasmid, named R860, is presented in FIG. 84 (SEQ ID NO: 122).

[0329]A dual Hsp expression plasmid was assembled as follows. R860 was digested with BsrBI (downstream the NOS terminator), treated with T4 DNA polymerase to generate a blunt end, and digested with SbfI (upstream the chimeric NIR/Plasto promoter). The resulting fragment (Chimeric Nir/Plasto promoter-HSP70 coding sequence-Nos terminator) was cloned into R850 previously digested with SbfI and SmaI (both located in the multiple cloning site upstream chimeric Nir/Plasto promoter). The resulting plasmid, named R870, is presented in FIG. 85 (SEQ ID NO: 123).

Assembly of Other Expression Cassettes

Soluble H1 Expression Cassette

[0330]The cassette encoding the soluble form of H1 was prepared by replacing the region coding for the transmembrane domain and the cytoplasmic tail in 540 by a fragment encoding the leucine zipper GCN4 pII variant (Harbury et al, 1993, Science 1993; 262: 1401-1407). This fragment was synthesized with flanking KpnI and Sad sites to facilitate cloning. The plasmid resulting from this replacement was named 544 and the expression cassette is illustrated in FIG. 11.

M1 A/Puerto Rico/8/34 Expression Cassette

[0331]A fusion between the tobacco etch virus (TEV) 5'UTR and the open reading frame of the influenza A/PR/8/34 M1 gene (Acc. # NC_--002016) was synthesized with a flanking Sad site added downstream of the stop codon. The fragment was digested with SwaI (in the TEV 5'UTR) and Sad, and cloned into a 2×35S/TEV based expression cassette in a pCAMBIA binary plasmid. The resulting plasmid bore the M1 coding region under the control of a 2×355/TEV promoter and 5'UTR and the NOS terminator (construct 750; FIG. 11).

HcPro Expression Cassette

[0332]An HcPro construct (35HcPro) was prepared as described in Hamilton et al. (2002). All clones were sequenced to confirm the integrity of the constructs. The plasmids were used to transform Agrobacteium tumefaciens (AGL1; ATCC, Manassas, Va. 20108, USA) by electroporation (Mattanovich et al., 1989). The integrity of all A. tumefaciens strains were confirmed by restriction mapping.

P19 Expression Cassette

[0333]The coding sequence of p19 protein of tomato bushy stunt virus (TBSV) was linked to the alfalfa plastocyanin expression cassette by the PCR-based ligation method presented in Darveau et al. (Methods in Neuroscience 26: 77-85 (1995)). In a first round of PCR, a segment of the plastocyanin promoter was amplified using primers Plasto-443c (SEQ ID NO: 4; FIG. 7A) and supP19-plasto.r (SEQ ID NO:124) with construct 660 (SEQ ID NO:60; FIG. 51) as template. In parallel, another fragment containing the coding sequence of p19 was amplified with primers supP19-1c (SEQ ID NO:125) and SupP19-SacI.r (SEQ ID NO: 126) using construct 35S:p19 as described in Voinnet et al. (The Plant Journal 33: 949-956 (2003)) as template. Amplification products were then mixed and used as template for a second round of amplification (assembling reaction) with primers Plasto-443c (SEQ ID NO: 4; FIG. 7A) and SupP19-SacI.r (SEQ ID NO: 126). The resulting fragment was digested with BamHI (in the plastocyanin promoter) and Sad (at the end of the p19 coding sequence) and cloned into construct number 660 (SEQ ID NO:60; FIG. 51), previously digested with the same restriction enzymes to give construct number R472. Plasmid R472 is presented in FIG. 86.

3. Preparation of Plant Biomass, Inoculum, Agroinfiltration, and Harvesting

[0334]Nicotiana benthamiana or Nicotiana tabacum plants were grown from seeds in flats filled with a commercial peat moss substrate. The plants were allowed to grow in the greenhouse under a 16/8 photoperiod and a temperature regime of 25° C. day/20° C. night. Three weeks after seeding, individual plantlets were picked out, transplanted in pots and left to grow in the greenhouse for three additional weeks under the same environmental conditions. Prior to transformation, apical and axillary buds were removed at various times as indicated below, either by pinching the buds from the plant, or by chemically treating the plant

[0335]Agrobacteria transfected with each construct were grown in a YEB medium supplemented with 10 mM 2-[N-morpholino]ethanesulfonic acid (MES), 20 μM acetosyringone, 50 μg/ml kanamycin and 25 μg/ml of carbenicillin pH5.6 until they reached an OD₆₀₀ between 0.6 and 1.6. Agrobacterium suspensions were centrifuged before use and resuspended in infiltration medium (10 mM MgCl₂ and 10 mM MES pH 5.6). Syringe-infiltration was performed as described by Liu and Lomonossoff (2002, Journal of Virological Methods, 105:343-348). For vacuum-infiltration, A. tumefaciens suspensions were centrifuged, resuspended in the infiltration medium and stored overnight at 4° C. On the day of infiltration, culture batches were diluted in 2.5 culture volumes and allowed to warm before use. Whole plants of N. benthamiana or N. tabacum were placed upside down in the bacterial suspension in an air-tight stainless steel tank under a vacuum of 20-40 Torr for 2-min. Following syringe or vacuum infiltration, plants were returned to the greenhouse for a 4-5 day incubation period until harvest. Unless otherwise specified, all infiltrations were performed as co-infiltration with AGL1/35S-HcPro in a 1:1 ratio, except for CPMV-HT cassette-bearing strains which were co-infiltrated with strain AGL1/R472 in a 1:1 ratio.

4. Leaf Sampling and Total Protein Extraction

[0336]Following incubation, the aerial part of plants was harvested, frozen at -80° C., crushed into pieces. Total soluble proteins were extracted by homogenizing (Polytron) each sample of frozen-crushed plant material in 3 volumes of cold 50 mM Tris pH 7.4, 0.15 M NaCl, and 1 mM phenylmethanesulfonyl fluoride. After homogenization, the slurries were centrifuged at 20,000 g for 20 min at 4° C. and these clarified crude extracts (supernatant) kept for analyses. The total protein content of clarified crude extracts was determined by the Bradford assay (Bio-Rad, Hercules, Calif.) using bovine serum albumin as the reference standard.

5. Size Exclusion Chromatography of Protein Extract

[0337]Size exclusion chromatography (SEC) columns of 32 ml Sephacryl® S-500 high resolution beads (S-500 HR: GE Healthcare, Uppsala, Sweden, Cat. No. 17-0613-10) were packed and equilibrated with equilibration/elution buffer (50 mM Tris pH8, 150 mM NaCl). One and a half millilitre of crude protein extract was loaded onto the column followed by an elution step with 45 mL of equilibration/elution buffer. The elution was collected in fractions of 1.5 mL relative protein content of eluted fractions was monitored by mixing 104 of the fraction with 200 μL of diluted Bio-Rad protein dye reagent (Bio-Rad, Hercules, Calif. The column was washed with 2 column volumes of 0.2N NaOH followed by 10 column volumes of 50 mM Tris pH8, 150 mM NaCl, 20% ethanol. Each separation was followed by a calibration of the column with Blue Dextran 2000 (GE Healthcare Bio-Science Corp., Piscataway, N.J., USA). Elution profiles of Blue Dextran 2000 and host soluble proteins were compared between each separation to ensure uniformity of the elution profiles between the columns used.

6. Protein Analysis and Immunoblotting

[0338]Protein concentrations were determined by the BCA protein assay (Pierce Biochemicals, Rockport Ill.). Proteins were separated by SDS-PAGE under reducing conditions and stained with Coomassie Blue. Stained gels were scanned and densitometry analysis performed using ImageJ Software (NIH).

[0339]Proteins from elution fraction from SEC were precipitated with acetone (Bollag et al., 1996), resuspended in 1/5 volume in equilibration/elution buffer and separated by SDS-PAGE under reducing conditions and electrotransferred onto polyvinylene difluoride (PVDF) membranes (Roche Diagnostics Corporation, Indianapolis, Ind.) for immunodetection. Prior to immunoblotting, the membranes were blocked with 5% skim milk and 0.1% Tween-20 in Tris-buffered saline (TBS-T) for 16-18 h at 4° C.

[0340]Immunoblotting was performed by incubation with a suitable antibody (Table 6), in 2 μg/ml in 2% skim milk in TBS-Tween 20 0.1%. Secondary antibodies used for chemiluminescence detection were as indicated in Table 4, diluted as indicated in 2% skim milk in TBS-Tween 20 0.1%. Immunoreactive complexes were detected by chemiluminescence using luminol as the substrate (Roche Diagnostics Corporation). Horseradish peroxidase--enzyme conjugation of human IgG antibody was carried out by using the EZ-Link Plus® Activated Peroxidase conjugation kit (Pierce, Rockford, Ill.). Whole, inactivated virus (WIV), used as controls of detection for H1, H3 and B subtypes, were purchased from National Institute for Biological Standards and Control (NIBSC).

TABLE-US-00008 TABLE 6 Electrophoresis conditions, antibodies, and dilutions for immunoblotting of expressed proteins. HA sub- Influenza Electrophoresis Primary Secondary type strain condition antibody Dilution antibody Dilution H1 A/Brisbane/59/ Reducing FII 10- 4 μg/ml Goat anti- 1:10 000 2007 (H1N1) I50 mouse (JIR 115- 035-146) H1 A/Solomon Reducing NIBSC 1:2000 Rabbit 1:10 000 Islands/3/2006 07/104 anti-sheep (H1N1) (JIR 313- 035-045) H1 A/New Reducing FII 10- 4 μg/ml Goat anti- 1:10 000 Caledonia/20/ I50 mouse 99 (H1N1) (JIR 115- 035-146) H2 A/Singapore/1/ Non-reducing NIBSC 1:1000 Rabbit 1:10 000 57 (H2N2) 00/440 anti-sheep (JIR 313- 035-045) H3 A/Brisbane/10/ Non-Reducing TGA 1:4000 Rabbit 1:10 000 2007 (H3N2) AS393 anti-sheep (JIR 313- 035-045) H3 A/Brisbane/10/ Non-Reducing NIBSC 1:1000 Rabbit 1:10 000 2007 (H3N2) 08/136 anti-sheep (JIR 313- 035-045) H3 A/Wisconsin/67/ Non-Reducing NIBSC 1:1000 Rabbit 1:10 000 2005 05/236 anti-sheep (H3N2) (JIR 313- 035-045) H5 A/Indonesia/5/ Reducing ITC 1:4000 Goat anti- 1:10 000 2005 (H5N1) IT-003- rabbit (JIR 005V 111-035- 144) H5 A/Anhui/1/2005 Reducing NIBSC 1:750 Rabbit 1:10 000 (H5N1) 07/338 anti-sheep (JIR 313- 035-045) H5 A/Vietnam/1194/ Non-reducing ITC IT- 1:2000 Goat anti- 1:10 000 2004 003-005 rabbit (JIR (H5N1) 111-035- 144) H6 A/Teal/Hong Non-reducing BEI NR 1:500 Rabbit 1:10 000 Kong/W312/97 663 anti-sheep (H6N1) (JIR 313- 035-045) H7 A/Equine/Prague/ Non-reducing NIBSC 1:1000 Rabbit 1:10 000 56 (H7N7) 02/294 anti-sheep (JIR 313- 035-045) H9 A/Hong Reducing NIBSC 1:1000 Rabbit 1:10 000 Kong/1073/99 07/146 anti-sheep (H9N2) (JIR 313- 035-045) B B/Malaysia/2506/ Non-Reducing NIBSC 1:2000 Rabbit 1:10 000 2004 07/184 anti-sheep (JIR 313- 035-045) B B/Florida/4/2006 Non-Reducing NIBSC 1:2000 Rabbit 1:10 000 07/356 anti-sheep (JIR 313- 035-045) FII: Fitzgerald Industries International, Concord, MA, USA; NIBSC: National Institute for Biological Standards and Control; JIR: Jackson ImmunoResearch, West Grove, PA, USA; BEI NR: Biodefense and emerging infections research resources repository; ITC: Immune Technology Corporation, Woodside, NY, USA; TGA: Therapeutic Goods Administration, Australia.

[0341]Hemagglutination assay for H5 was based on a method described by Nayak and Reichl (2004). Briefly, serial double dilutions of the test samples (100 μL) were made in V-bottomed 96-well microtiter plates containing 100 μL PBS, leaving 100 μL of diluted sample per well. One hundred microliters of a 0.25% turkey red blood cells suspension (Bio Link Inc., Syracuse, N.Y.) were added to each well, and plates were incubated for 2 h at room temperature. The reciprocal of the highest dilution showing complete hemagglutination was recorded as HA activity. In parallel, a recombinant HA standard (A/Vietnam/1203/2004H5N1) (Protein Science Corporation, Meriden, Conn.) was diluted in PBS and run as a control on each plate.

7. Sucrose Gradient Ultracentrifugation

[0342]One milliliter of fractions 9, 10 and 11 eluted from the gel filtration chromatography on H5-containing biomass were pooled, loaded onto a 20-60% (w/v) discontinuous sucrose density gradient, and centrifuged 17.5 h at 125 000 g (4° C.). The gradient was fractionated in 19 3-mL fractions starting from the top, and dialyzed to remove sucrose prior to immunological analysis and hemagglutination assays.

8. Electron Microscopy

[0343]One hundred microliters of the samples to be examined were placed in an Airfuge ultracentrifugation tube (Beckman Instruments, Palo Alto, Calif., USA). A grid was placed at the bottom of the tube which was then centrifuged 5 min at 120 000 g. The grid was removed, gently dried, and placed on a drop of 3% phosphotungstic acid at pH 6 for staining. Grids were examined on a Hitach±7100 transmission electron microscope (TEM) (for images in FIGS. 14B, 15B and 15C).

[0344]For images in FIG. 19, Leaf blocks of approximately 1 mm³ were fixed in PBS containing 2.5% glutaraldehyde and washed in PBS containing 3% sucrose before a post-fixation step in 1.33% osmium tetroxide. Fixed samples were imbedded in Spurr resin and ultrathin layers were laid on a grid. Samples were positively stained with 5% uranyl acetate and 0.2% lead citrate before observation. Grids were examined on a Hitach±7100 transmission electron microscope (TEM).

9. Plasma Membrane Lipid Analysis

[0345]Plasma membranes (PM) were obtained from tobacco leaves and cultured BY2 cells after cell fractionation according to Mongrand et al.by partitioning in an aqueous polymer two-phase system with polyethylene glycol 3350/dextran T-500 (6.6% each). All steps were performed at 4° C.

[0346]Lipids were extracted and purified from the different fractions according to Bligh and Dyer. Polar and neutral lipids were separated by mono-dimensional HP-TLC using the solvent systems described in Lefebvre et al. Lipids of PM fractions were detected after staining with copper acetate as described by Macala et al. Lipids were identified by comparison of their migration time with those of standards (all standards were obtained from Sigma-Aldrich, St-Louis, Mo., USA, except for SG which was obtained from Matreya, Pleasant Gap, Pa., USA).

10. H5 VLP (A/Indonesia/5/2005) Purification

[0347]Frozen 660-infiltrated leaves of N. benthamiana were homogenized in 1.5 volumes of 50 mM Tris pH 8, NaCl 150 mM and 0.04% sodium meta-bisulfite using a commercial blender. The resulting extract was supplemented with 1 mM PMSF and adjusted to pH 6 with 1 M acetic acid before being heated at 42° C. for 5 min. Diatomaceous earth (DE) was added to the heat-treated extract to adsorb the contaminants precipitated by the pH shift and heat treatment, and the slurry was filtered through a Whatman paper filter. The resulting clarified extract was centrifuged at 10,000×g for 10 minutes at RT to remove residual DE, passed through 0.8/0.2 μm Acropack 20 filters and loaded onto a fetuin-agarose affinity column (Sigma-Aldrich, St-Louis, Mo., USA). Following a wash step in 400 mM NaCl, 25 mM Tris pH 6, bound proteins were eluted with 1.5 M NaCl, 50 mM MES pH 6. Eluted VLP were supplemented with Tween-80 to a final concentration of 0.0005% (v/v). VLP were concentrated on a 100 kDa MWCO Amicon membrane, centrifuged at 10,000×g for 30 minutes at 4° C. and resuspended in PBS pH 7.4 with 0.01% Tween-80 and 0.01% thimerosal. Suspended VLPs were filter-sterilized before use.

11. Animal Studies

Mice

[0348]Studies on the immune response to influenza VLP administration were performed with 6-8 week old female BALB/c mice (Charles River Laboratories). Seventy mice were randomly divided into fourteen groups of five animals. Eight groups were used for intramuscular immunization and six groups were used to test intranasal route of administration. All groups were immunized in a two-dose regiment, the boost immunization being done 3 weeks following the first immunization.

[0349]For intramuscular administration in hind legs, unanaesthetized mice were immunized with either the plant-made H5 VLP (A/Indonesia/5/2005 (H5N1) vaccine (0.1, 1, 5 or 12 μg), or a control hemagglutinin (H5) antigen. The control H5 comprised recombinant soluble hemagglutinin produced based on strain A/Indonesia/5/05H5N1 and purified from 293 cell culture (Immune Technology Corp., New York, USA) (used at 5 μg per injection unless otherwise indicated). Buffer control was PBS. This antigen consists of amino acids 18-530 of the HA protein, and has a His-tag and a modified cleavage site. Electron microscopy confirmed that this commercial product is not in the form of VLPs.

[0350]To measure the effect of adjuvant, two groups of animals were immunized with 5 μg plant-made VLP H5 vaccine plus one volume Alhydrogel 2% (alum, Accurate Chemical & Scientific Corporation, Westbury, N.Y., US) or with 5 μg recombinant hemagglutinin purified from 293 cell culture plus 1 volume alum. Seventy mice were randomly divided into fourteen groups of five animals. Eight groups were used for intramuscular immunization and six groups were used to test intranasal route of administration. All groups were immunized according to a prime-boost regimen, the boost immunization performed 3 weeks following the first immunization.

[0351]For intramuscular administration in hind legs, unanaesthetized mice were immunized with the plant-made H5 VLP (0.1, 1, 5 or 12 pg), or the control hemagglutinin (HA) antigen (5 μg) or PBS. All antigen preparations were mixed with Alhydrogel 1% (alum, Accurate Chemical & Scientific Corporation, Westbury, N.Y., US) in a 1:1 volume ratio prior to immunizations. To measure the effect of adjuvant, two groups of animals were immunized with either 5 μg plant-made VLP H5 vaccine or with 5 μg of control HA antigen without any adjuvant.

[0352]For intranasal administration, mice were briefly anaesthetized by inhalation of isoflurane using an automated induction chamber. They were then immunized by addition of 4 μl drop/nostril with the plant-made VLP vaccine (0.1 or 1 μg), or with control HA antigen (1 μg) or with PBS. All antigen preparations were mixed with chitosan glutamate 1% (Protosan, Novamatrix/FMC BioPolymer, Norway) prior to immunizations. The mice then breathed in the solutions. To verify the effect of adjuvant with the intranasal route of administration, two groups of animals were immunized with 1 μg plant-made VLP H5 vaccine or with 1 μg control HA antigen.

Ferrets

[0353]Ten groups of 5 ferrets (male, 18-24 weeks old, mass of approx 1 kg) were used. Treatment for each group is as described in Table 7. The adjuvant used was Alhydrogel (alum) (Superfos Biosector, Denmark) 2% (final=1%). Vaccine composition was membrane-associated A/Indonesia/5/05 (H5N1) VLPs produced as described. The vaccine control (positive control) was a fully glycosylated membrane-bound recombinant H5 from Indonesia strain produced using adenovirus in 293 cell culture by Immune Technology Corporation (ITC).

TABLE-US-00009 TABLE 7 Treatment groups Product injected to Route of Group n animals administration Adjuvant 1 5 PBS (negative control) i.m.* -- 2 5 Vaccine-plant, 1 μg i.m. -- 3 5 Vaccine-plant, 1 μg i.m. Alum 4 5 Vaccine-plant, 5 μg i.m. -- 5 5 Vaccine-plant, 5 μg i.m. Alum 6 5 Vaccine-plant, 7.5 μg i.m. -- 7 5 Vaccine-plant, 15 μg i.m. -- 8 5 Vaccine-plant, 15 μg i.m. Alum 9 5 Vaccine-plant, 30 μg i.m. -- 10 5 Vaccine-control, 5 μg i.m. -- *i.m.: intramuscular

[0354]Ferrets were assessed for overall health and appearance (body weight, rectal temperature, posture, fur, movement patterns, breathing, excrement) regularly during the study. Animals were immunized by intramuscular injection (0.5-1.0 total volume) in quadriceps at day 0, 14 and 28; for protocols incorporating adjuvant, the vaccine composition was combined with Alhydrogel immediately prior to immunization in a 1:1 volume ratio). Serum samples were obtained on day 0 before immunizing, and on day 21 and 35. Animals were sacrificed (exsanguination/cardiac puncture) on days 40-45, and, spleens were collected and necropsy performed.

[0355]Anti-influenza antibody titres may be quantified in ELISA assays using homologous or heterologous inactivated H5N1 viruses.

[0356]Hemagglutination inhibitory antibody titers of serum samples (pre-immune, day 21 and day 35) were evaluated by microtiter HAI as described (Aymard et al 1973). Briefly, sera were pretreated with receptor-destroying enzyme, heat-inactivated and mixed with a suspension of erythrocytes (washed red blood cells-RBC). Horse washed RBC (10%) from Lampire are recommended and considering that the assay may vary depending of the source of the RBC (horse-dependant), washed RBCs from 10 horses have been tested to select the most sensitive batch. Alternately, turkey RBC may be used. Antibody titer was expressed as the reciprocal of the highest dilution which completely inhibits hemagglutination.

[0357]Cross-reactive HAI titers: HAI titers of ferrets immunized with a vaccine for the A/Indonesia/5/05 (Glade 2.1) were measured using inactivated H5N1 influenza strains from another subclade or Glade such as the Glade 1 Vietnam strains A/Vietnam/1203/2004 and A/Vietnam/1194/2004 or the A/Anhui/01/2005 (subclade 2.3) or the A/turkey/Turkey/1/05 (subclade 2.2). All analyses were performed on individual samples.

[0358]Data analysis: Statistical analysis (ANOVA) were performed on all data to establish if differences between groups are statistically significant.

Experimental Design for Lethal Challenge (Mice)

[0359]One hundred twenty eight mice were randomly divided into sixteen groups of eight animals, one group being unimmunized and not challenged (negative control). All groups were immunized via intramuscular administration in a two-dose regimen, the second immunization being done 2 weeks following the first immunization.

[0360]For intramuscular administration in hind legs, unanaesthetized mice were immunized with the plant-made H5 VLP (1, 5 or 15 μg), or 15 μg of control HA antigen or PBS. All antigen preparations were mixed with one volume of Alhydrogel 1% prior to immunizations (alum, Accurate Chemical & Scientific Corporation, Westbury, N.Y., US).

[0361]During the immunization period, mice were weighted once a week and observation and monitored for local reactions at the injection site.

[0362]Twenty two days following the second immunization, anesthetized mice were challenged intranasally (i.n.) Into a BL4 containment laboratory (P4-Jean Merieux-INSERM, Lyon, France) with 4.09×10⁶ 50% cell culture infective dose (CClD50) of influenza A/Turkey/582/06 virus (kindly provided by Dr. Bruno Lina, Lyon University, Lyon, France). Following challenge, mice were observed for Ill clinical symptoms and weighed daily, over a fourteen day period. Mice with severe infection symptoms and weight loss of ≧25% were euthanized after anaesthesia.

Blood Collection, Lung and Nasal Washes and Spleen Collection

[0363]Lateral saphenous vein blood collection was performed fourteen days after the first immunization and fourteen days after second immunization on unanaesthetized animal. Serum was collected by centrifugation at 8000 g for 10 min.

[0364]Four weeks after second immunisation, mice were anaesthetized with CO₂ gas and immediately upon termination, cardiac puncture was used to collect blood.

[0365]After final bleeding, a catheter was inserted into the trachea towards the lungs and one ml of cold PBS-protease inhibitor cocktail solution was put into a 1 cc syringe attached to the catheter and injected into the lungs and then removed for analysis. This wash procedure was performed two times. The lung washes were centrifuged to remove cellular debris. For nasal washes, a catheter was inserted towards the nasal area and 0.5 ml of the PBS-protease inhibitor cocktail solution was pushed through the catheter into the nasal passages and then collected. The nasal washes were centrifuged to remove cellular debris. Spleen collection was performed on mice immunized intramuscularly with 5 μg of adjuvanted plant-made vaccine or 5 μg adjuvanted recombinant H5 antigen as well as on mice immunized intranasaly with 1 μg of adjuvanted plant-made vaccine or 1 μg adjuvanted recombinant H5 antigen. Collected spleens were placed in RPMI supplemented with gentamycin and mashed in a 50 ml conical tube with plunger from a 10 ml syringe. Mashed spleens were rinsed 2 times and centrifuged at 2000 rpm for 5 min and resuspended in ACK lysing buffer for 5 min at room temperature. The splenocytes were washed in PBS-gentamycin, resuspended in 5% RPMI and counted. Splenocytes were used for proliferation assay.

Antibody Titers

[0366]Anti-influenza antibody titers of sera were measured at 14 days after the first immunization as well as 14 and 28 days after the second immunisation. The titer were determined by enzyme-linked immunosorbent assay (ELISA) using the inactivated virus A/Indonesia/5/05 as the coating antigen. The end-point titers were expressed as the reciprocal value of the highest dilution that reached an OD value of at least 0.1 higher than that of negative control samples.

[0367]For antibody class determination (IgG1, IgG2a, IgG2b, IgG3, IgM), the titers were evaluated by ELISA as previously described.

Hemagglutination Inhibition (HI) Titers

[0368]Hemagglutination inhibition (HI) titers of sera were measured at 14 and 28 days after the second immunisation as previously described (WHO 2002; Kendal 1982). Inactivated virus preparations from strains A/Indonesia/5/05 or A/Vietnam/1203/2004 were used to test mouse serum samples for HI activity. Sera were pre-treated with receptor-destroying enzyme II (RDE II) (Denka Seiken Co., Tokyo, Japan) prepared from Vibrio cholerae (Kendal 1982). HI assays were performed with 0.5% turkey red blood cells. HI antibody titres were defined as the reciprocal of the highest dilution causing complete inhibition of agglutination.

EXAMPLES

Example 1

Transient Expression of Influenza Virus A/Indonesia/5/05 (H5N1) Hemagglutinin by Agroinfiltration in N. benthamiana Plants

[0369]The ability of the transient expression system to produce influenza hemagglutinin was determined through the expression of the H5 subtype from strain A/Indonesia/5/05 (H5N1). As presented in FIG. 11, the hemagglutinin gene coding sequence (GenBank Accession No. EF541394), with its native signal peptide and transmembrane domain, was first assembled in the plastocyanin expression cassette--promoter, 5'UTR, 3'UTR and transcription termination sequences from the alfalfa plastocyanin gene--and the assembled cassette (660) was inserted into to a pCAMBIA binary plasmid. This plasmid was then transfected into Agrobacterium (AGL1), creating the recombinant strain AGL1/660, which was used for transient expression.

[0370]N. benthamiana plants were infiltrated with AGL1/660, and the leaves were harvested after a six-day incubation period. To determine whether H5 accumulated in the agroinfiltrated leaves, protein were first extracted from infiltrated leaf tissue and analyzed by Western blotting using anti-H5 (Vietnam) polyclonal antibodies. A unique band of approximately 72 kDa was detected in extracts (FIG. 12), corresponding in size to the uncleaved HA0 form of influenza hemagglutinin. The commercial H5 used as positive control (A/Vietnam/1203/2004; Protein Science Corp., Meriden, Conn., USA) was detected as two bands of approximately 48 and 28 kDa, corresponding to the molecular weight of HA1 and HA2 fragments, respectively. This demonstrated that expression of H5 in infiltrated leaves results in the accumulation of the uncleaved translation product.

[0371]The formation of active HA trimers was demonstrated by the capacity of crude protein extracts from AGL1/660-transformed leaves to agglutinate turkey red blood cells (data not shown).

Example 2

Characterization of Hemagglutinin-Containing Structures in Plant Extracts Using Size Exclusion Chromatography

[0372]The assembly of plant-produced influenza hemagglutinin into high molecular weight structures was assessed by gel filtration. Crude protein extracts from AGL1/660-infiltrated plants (1.5 mL) were fractionated by size exclusion chromatography (SEC) on Sephacryl® S-500 HR columns (GE Healthcare Bio-Science Corp., Piscataway, N.J., USA). Elution fractions were assayed for their total protein content and for HA abundance using immunodetection with anti-HA antibodies (FIG. 13A).As shown in FIG. 13A, Blue Dextran (2 MDa) elution peaked early in fraction 10 while the bulk of host proteins was retained in the column and eluted between fractions 14 and 22. When proteins from 200 μL of each SEC elution fraction were concentrated (5-fold) by acetone-precipitation and analyzed by Western blotting (FIG. 15A, H5), hemagglutinin (H5) was primarily found in fractions 9 to 14 (FIG. 13B). Without wishing to be bound by theory, this suggests that the HA protein had either assembled into a large superstructure or that it has attached to a high molecular weight structure.

[0373]A second expression cassette was assembled with the H1 nucleic acid sequence from A/New Calcdonia/20/99 (H1N1) (SEQ ID NO: 33; FIG. 16; GenBank Accession No. AY289929) to produce construct 540 (FIG. 11). A chimeric gene construct was designed so as to produce a soluble trimeric form of H1 in which the signal peptide originated from a plant protein disulfide isomerase gene, and the transmembrane domain of H1 was replaced by the pII variant of the GCN4 leucine zipper, a peptide shown to self-assemble into trimers (Harbury et al., 1993) (cassette 544, FIG. 11). Although lacking the transmembrane domain, this soluble trimeric form was capable of hemagglutination (data not shown).

[0374]Protein extracts from plants infiltrated with AGL1/540 or AGL1/544 were fractionated by SEC and the presence of H1 eluted fractions was examined by Western blotting with anti-influenza A antibodies (Fitzgerald, Concord, Mass., USA). In AGL1/540-infiltrated leaves, H1 accumulated mainly as a very high molecular weight structure, with the peak was skewed toward smaller size structures (H1; FIG. 13C). In AGL1/544-infiltrated leaves, the soluble form of H1 accumulated as isolated trimers as demonstrated by the elution pattern from gel filtration which parallels the host protein elution profile (soluble H1; FIG. 13D). In comparison, H1 rosettes (Protein Science Corp., Meriden, Conn., USA), consisting in micelles of 5-6 trimers of hemagglutinin eluted at fractions 12 to 16 (FIG. 13E), earlier than the soluble form of H1 (FIG. 13D) and later than the native H1 (FIG. 13C).

[0375]To evaluate the impact of M1 co-expression on hemagglutinin assembly into structure, a M1 expression cassette was assembled using the nucleic acid corresponding to the coding sequence of the A/PR/8/34 (H1N1) M1 (SEQ ID NO: 35; FIG. 18; GenBank Accession No. NC_--002016). The construct was named 750 and is presented in FIG. 11. For the co-expression of M1 and H1, suspensions of AGL1/540 and AGL1/750 were mixed in equal volume before infiltration. Co-infiltration of multiple Agrobacterium suspensions permits co-expression of multiple transgenes. The Western blot analysis of SEC elution fractions shows that the co-expression of M1 did not modify the elution profile of the H1 structures, but resulted in a decrease in H1 accumulation in the agroinfiltrated leaves (see FIG. 13F).

Example 3

Isolation of 115 Structures by Centrifugation in Sucrose Gradient and Observation Under Electron Microscopy

[0376]The observation of hemagglutinin structure under electron microscopy (EM) required a higher concentration and purity level than that obtained from SEC on crude leaf protein extracts. To allow EM observation of H5 structures, a crude leaf protein extract was first concentrated by PEG precipitation (20% PEG) followed by resuspension in 1/10 volumes of extraction buffer. The concentrated protein extract was fractionated by S-500 HR gel filtration and elution fractions 9, 10, and 11 (corresponding to the void volume of the column) were pooled and further isolated from host proteins by ultracentrifugation on a 20-60% sucrose density gradient. The sucrose gradient was fractionated starting from the top and the fractions were dialysed and concentrated on a 100 NMWL centrifugal filter unit prior to analysis. As shown on the Western blots and hemagglutination results(FIG. 14A), H5 accumulated mainly in fractions 16 to 19 which contained ≈60% sucrose, whereas most of the host proteins peaked at fraction 13. Fractions 17, 18, and 19 were pooled, negatively stained, and observed under EM. Examination of the sample clearly demonstrated the presence of spiked spheric structures ranging in size from 80 to 300 nm which matched the morphological characteristics of influenza VLPs (FIG. 14B).

Example 4

Purification of influenza H5 VLPs from Plant Biomass

[0377]In addition to an abundant content of soluble proteins, plant leaf extracts contain a complex mixture of soluble sugars, nucleic acids and lipids. The crude extract was clarified by a pH shift and heat treatment followed by filtration on diatomaceous earth (see Material and method section for a detailed description of the clarification method). FIG. 15A (lanes 1-4) presents a Coomassie Blue stained gel comparing protein content at the various steps of clarification. A comparison of protein content in the crude extract (lane 1) and in the clarified extract (lane 4) reveals the capacity of the clarification steps to reduce the global protein content and remove most of the major contaminant visible at 50 kDa in crude leaf extracts. The 50 kDa band corresponds to the RuBisCO large subunit, representing up to 30% of total leaf proteins.

[0378]Influenza H5 VLPs were purified from these clarified extracts by affinity chromatography on a fetuin column. A comparison of the load fraction (FIG. 15A, lane 5) with the flowthrough (FIG. 15A, lane 6) and the eluted VLPs (FIG. 15A, lane 7) demonstrates the specificity of the fetuin affinity column for influenza H5 VLPs in plant clarified extract.

[0379]The purification procedure resulted in over 75% purity in H5, as determined by densitometry on the Coomassie Blue stained SDS-PAGE gel (FIG. 15A, lane 7). In order to assess the structural quality of the purified product, the purified H5 was concentrated on a 100 NMWL (nominal molecular weight limit) centrifugal filter unit and examined under EM after negative staining. FIG. 15B shows a representative sector showing the presence of profuse VLPs. A closer examination confirmed the presence of spikes on the VLPs (FIG. 15C).

[0380]As shown in FIG. 15D, H5 VLPs were purified to approx. 89% purity from clarified leaf extract by affinity chromatography on a fetuin column, based on the density of the Coomassie Blue stained H15 hemagglutinin and on total protein content determination by the BCA method.

[0381]The bioactivity of HA VLPs was confirmed by their capacity to agglutinate turkey red blood cells (data not shown).

[0382]FIG. 15D also confirms the identity of the purified VLP visualized by Western blotting and immunodetection with an anti-H5 polyclonal serum (A/Vietnam/1203/2004). A unique band of approximately 72 kDa is detected and corresponds in size to the uncleaved HA0 form of influenza hemagglutinin. FIG. 15c shows the VLP structure of the vaccine with the hemagglutinin spikes covering its structure.

[0383]VLPs were formulated for immunization of mice by filtering through a 0.22 μm filter; endotoxin content was measured using the endotoxin LAL (Limulus Amebocyte Lysate) detection kit (Lonza, Walkserville, Miss., USA). The filtered vaccine contained 105.8±11.6% EU/ml (endotoxin units/ml).

Example 5

Localization of Influenza VLPs in Plants

[0384]To localize the VLPs and confirm their plasma membrane origin, thin leaf sections of H5-producing plants were fixed and examined under TEM after positive staining. Observation of leaf cells indicated the presence of VLPs in extracellular cavities formed by the invagination of the plasma membrane (FIG. 19). The shape and position of the VLPs observed demonstrated that despite the apposition of their plasma membranes on the cell wall, plant cells have the plasticity required to produce influenza VLPs derived from their plasma membrane and accumulate them in the apoplastic space.

Example 6

Plasma Membrane Lipid Analysis

[0385]Further confirmation of the composition and origin of the plant influenza VLPs was obtained from analyses of the lipid content. Lipids were extracted from purified VLPs and their composition was compared to that of highly purified tobacco plasma membranes by high performance thin layer chromatography (HP-TLC). The migration patterns of polar and neutral lipids from VLPs and control plasma membranes were similar. Purified VLPs contained the major phospholipids (phosphatidylcholine and phosphatidylethanolamine) and sphingolipids (glucosyl-ceramide) found in the plasma membrane (FIG. 27A), and both contained free sterols as the sole neutral lipids (FIG. 27B). However, immunodetection of a plasma membrane protein marker (ATPase) in purified VLP extracts showed that the VLP lipid bilayer does not contain one of the major proteins associated with plant plasma membranes, suggesting that host proteins may have been excluded from the membranes during the process of VLPs budding from the plant cells (FIG. 27C).

Example 7

Immunogenicity of the 115 VLPs and Effect of Route of Administration

[0386]Mice were administered plant-made H5 VLPs by intramuscular injection, or intranasal (inhalation). 0.1 to 12 ug of VLPs were injected intramuscularly into mice, with alum as an adjuvant, according to the described methods. Peak antibody titers were observed with the lowest antigen quantity, in a similar magnitude to that of 5 ug recombinant, soluble hemagglutinin (H5) (FIG. 20A).

[0387]0.1 to 1 ug plant-made H5 VLPs were administered intranasally with a chitosan adjuvant provided for an antibody response greater than that of the recombinant soluble H5 with an alum adjuvant (FIG. 20B).

[0388]For both administration routes, and over a range of antigen quantities, seroconversion was observed in all of the mice tested. Recombinant H5 soluble antigen conferred low (<1/40) or negligible (1<1/10 for the non-adjuvanted recombinant H5) HI titres.

Example 8

Hemagglutination-Inhibition Antibody Titer (HAI) H5 VLP

[0389]FIG. 21A, B illustrates the hemagglutination inhibition (HAI) antibody response 14 days following a "boost" with plant-made H5 VLP, or recombinant soluble H5. The lowest dose of antigen (0.1 ug) when administered intramuscularly produced a superior HAI response to a 10-fold greater administration (5 ug) of recombinant soluble H5. Increasing doses of H5 VLP provided a modest increase in HAI over the lowest dose.

[0390]HAI response following intranasal administration was significantly increased in mice administered plant-made H5 VLPs (1.0 or 0.1 ug) compared to those administered 1 ug recombinant soluble H5, which was similar to the negative control. All mice immunized by intramuscular injection of H5 VLPs (from 0.1 to 12 μg) had higher HAI titers than mice immunised with the control H5 antigen (FIG. 21A). For the same dose of 5 VLPs induced HAI titers 20 times higher than the corresponding dose of the control H5 antigen. VLPs also induced significantly higher HAI titers than the control HA antigen when delivered through the intranasal route (FIG. 21b). For a given dose of H5 VLP the levels of HAI titers were lower in mice immunised intranasally than for mice immunised intramuscularly; 1 μg VLP induced a mean HAI titer of 210 when administered i.m. while the same dose induced a mean HAI titer of 34 administered i.n.

[0391]When administered intramuscularly, all doses of VLPs induced high level of antibodies capable of binding homologous whole inactivated viruses (FIGS. 20a and 24). No significant difference was found between the plant-made VLP vaccine and the control H5 antigen (except the 12 μg VLP group 14 days after boost), as both antigen preparations induce high binding antibody titers against the homologous strain. However, when administered intranasally, VLPs induced higher binding antibody titers in than did the control H5 antigen (FIG. 20B). When mixed with Chitosan, immunization with one microgram VLP induced a reciprocal mean Ab titer of 5 500, 8.6 times higher than the level found in mice immunized with 1 μg of the control HA antigen (reciprocal mean Ab titer of 920).

[0392]The immunogenicity of the plant-derived influenza VLPs was then investigated through a dose-ranging study in mice. Groups of five BALB/c mice were immunized intramuscularly twice at 3-week intervals with 0.1 μg to 12 μg of VLPs containing HA from influenza A/Indonesia/5/05 (H5N1) formulated in alum (1:1 ratio). Hemagglutination-inhibition titers (HI or HAI), using whole inactivated virus antigen (A/Indonesia/5/05 (H5N1)), were measured on sera collected 14 days after the second immunization. Immunization with doses of VLP as low as 0.1 μg induced the production of antibodies that inhibited viruses from agglutinating erythrocytes at high dilutions (FIG. 21A). Parallel immunization of mice with 5 μg of non-VLP alum-adjuvanted control H5 antigen (also from A/Indonesia/5/05) induce an HI response that was 2-3 logs lower than that achieved with the lowest VLP dose.

[0393]For both administration routes, and over a range of antigen quantities, the HAI response is superior in mice administered VLPs.

Example 9

Effect of Adjuvant on Immunogenicity of H5 VLPs

[0394]Plant-made H5 VLPs have a plasma membrane origin (FIG. 19, Example 5). Without wishing to be bound by theory, enveloped viruses or VLPs of enveloped viruses generally acquire their envelope from the membrane they bud through. Plant plasma membranes have a phytosterol complement that is rarely, if ever found in animal cells, and several of these sterols have been demonstrated to exhibit immunostimulatory effects.

[0395]Plant-made H5 VLPs were administered intramuscularly (FIG. 22A) or intranasally (FIG. 22B) to mice in the presence or absence of an adjuvant, and the HAI (hemagglutination inhibition antibody response) determined. VLPs, in the presence or absence of an added adjuvant (alum or chitosan, as in these examples) in either system of administration demonstrated a significantly greater HAI hemagglutinin inhibition than recombinant soluble H5. Even in the absence of an added adjuvant (i.e. alum or chitosan), plant-made H5 VLPs demonstrate a significant HAI, indicative of a systemic immune response to administration of the antigen.

[0396]Alum enhanced the mean level of HAI titers by a factor of 5 for intramuscular administration of VLP (FIG. 22a) and by a factor of 3.7 for the control H5 antigen. When administered i.m., 5 μg VLPs induced a mean HAI titer 12 times higher than the corresponding dose of control H5 antigen. Chitosan did not boost the mean HAI level of the control H5 antigen (FIG. 22b) while it increased the mean HAI level of mice immunised with 1 μg VLP administered i.n. by a factor of 5-fold.

Example 10

Antibody Isotypes

[0397]Mice administered plant-made H5 VLPs or recombinant soluble H5 in the presence or absence of alum as an added adjuvant demonstrate a variety of immunoglobulin isotypes (FIG. 23A).

[0398]In the presence of an added adjuvant, the antibody isotype profiles of VLPs and the recombinant H5 are similar, with IgG1 being the dominant isotype. When VLPs or recombinant H5 are administered without an added adjuvant, IgG1 response is reduced, but remains the dominant isotype response to VLPs, with IgM, IgG2a, IgG2B and IgG3 maintaining similar titers as in the presence of an added adjuvant. IgG1, IgG2a, and IgG2b titers are markedly reduced when recombinant H5 is administered without an added adjuvant (FIG. 23A).

[0399]These data, therefore, demonstrate that plant-made VLPs do not require an added adjuvant to elicit a antibody response in a host.

[0400]Antibody titers against whole inactivated influenza virus strains (A/Indonesia/5/05; A/Vietnam/1203/04)I in mice administered plant-made VLPs or soluble recombinant HA intramuscularly in the presence of an added antigen are illustrated in FIG. 23B. No significant difference is observed in the antibody titers for these influenza strains in mice administered 1 ug or 5 ug of VLPs or 5 ug of soluble HA.

Example 11

Cross-Reactivity of Serum Antibodies Induced by the H5 VLP Vaccine

[0401]Cross-reactivity of serum antibodies induced by H5 VLP was assessed against whole inactivated influenza viruses of different strains. All VLP doses (from 0.1 to 12 μg) as well as 5 μg of control HA antigen induced high binding antibody titers against a Glade 1 strain (A/Vietnam/1194/04), the homologous strain A/Indonesia/5/05 of Glade 2.1, and a Glade 2.2 strain A/turkey/Turkey/1/05 (FIG. 25A).

[0402]However, only the plant-made VLP induced HAI titer against the A/turkey/Turkey/1/05 strain (FIG. 25b). HAI titers for the A/Indonesia/5/05 were high for VLPs.

Example 12

Cross-Protection Conferred by Immunization with Plant-Made H5 VLP

[0403]Mice that previously had been administered a two-dose regimen of A/Indonesia/5/05H5 VLPs as described, were subsequently challenged intranasally with influenza A/Turkey/582/06 (H5N1) ("Turkey H5N1") infectious virus, and observed. The dose administered, per animal, was 10 LD₅₀ (4.09×10⁵ CClD₅₀).

[0404]By 7 days post-challenge, only 37.5% of the mice administered the PBS vaccine control had survived exposure to Turkey H5N1 (FIG. 26A). 100% of animals administered the control antigen (HA) or 1, 5 or 15 ug of Indonesia H5 VLPs survived up to 17 days post-challenge, when the experiment was terminated.

[0405]Body mass of the mice was also monitored during the experiment, and the average mass of the surviving mice plotted (FIG. 26B). Mice administered 1, 5 or 15 ug of the Indonesia H5 VLPs before challenge did not lose any appreciable mass during the course of the experiment, and in particular mice administered 5 ug of the VLPs appear to have gained significant mass. Negative control mice (no Turkey H5N1 challenge) did not appreciably gain or lose body mass. Positive control mice (not administered VLPs, but challenged with Turkey H5N1) exhibited significant loss of body mass during the course of the experiment, and three of these mice died. As body mass is an average of all mice in the cohort, removal of the `sickest` mice (the 3 that died) may lead to an apparent overall increase in mass, however note that the average body mass of the positive control cohort is still significantly below that of the negative or the VLP-treated cohorts.

[0406]These data, therefore, demonstrate that plant-made influenza VLPs comprising the H5 hemagglutinin viral protein induce an immune response specific for pathogenic influenza strains, and that virus-like particles may bud from a plant plasma membrane.

[0407]These data, therefore, demonstrate that plants are capable of producing influenza virus-like particles, and also for the first time, that virus-like particles can bud from a plant plasma membrane.

[0408]Further, using the current transient expression technology, a first antigen lot was produced only 16 days after the sequence of the target HA was obtained. Under the current yields for H5 VLPs, and at an exemplary dose of 5 μg per subject, each kg of infiltrated leaf may produce ˜20,000 vaccine doses. This unique combination of platform simplicity, surge capacity and powerful immunogenicity provides for, among other embodiments, a new method response in the context of a pandemic.

Example 13

Characterization of Hemagglutinin-Containing (H1, H2, H3, H5, H6 and H9) Structures in Plant Extracts Using Size Exclusion Chromatography

[0409]The assembly of plant-produced influenza hemagglutinin of different subtypes into high molecular weight structures was assessed by gel filtration. Crude or concentrated protein extracts from AGL1/660-, AGL1/540-, AGL1/783-, AGL1/780-, AGL1/785- and AGL1/790-infiltrated plants (1.5 mL) were fractionated by size exclusion chromatography (SEC) on Sephacryl® S-500 HR columns (GE Healthcare Bio-Science Corp., Piscataway, N.J., USA). As shown in FIG. 46, Blue Dextran (2 MDa) elution peaked early in fraction 10. When proteins from 200 μL of each SEC elution fraction were concentrated (5-fold) by acetone-precipitation and analyzed by Western blotting (FIG. 46), hemagglutinins were primarily found in fractions 7 to 14, indicating the incorporation of HA into VLPs. Without wishing to be bound by theory, this suggests that the HA protein had either assembled into a large superstructure or that it has attached to a high molecular weight structure, irrespectively of the subtype produced. In FIG. 46, H1 from strain A/New Calcdonia/20/1999 and H3 from strain A/Brisbane/10/2007 were produced using PDI signal peptide-containing cassettes. The results obtained indicate that replacement of the native signal peptide by that of alfalfa PDI does not affect the ability of HA to assemble into particles.

Example 14

Transient Expression of Seasonal Influenza Virus Hemagglutinin by Agroinfiltration in N. benthamiana Plants Using the Wild-Type Nucleotide Sequence

[0410]The ability of the transient expression system to produce seasonal influenza hemagglutinins was determined through the expression of the H1 subtype from strains A/Brisbane/59/2007 (H1N1) (plasmid #774), A/New Calcdonia/20/1999 (H1N1) (plasmid #540) and A/Solomon Islands/3/2006 (H1N1) (plasmid #775), of the H3 subtype from strains A/Brisbane/10/2007 (plasmid #776) and A/Wisconsin/67/2005 (plasmid #777) and of the B type from strains B/Malaysia/2506/2004 (Victoria lineage) (plasmid #778) and B/Florida/4/2006 (Yamagata lineage) (plasmid #779). The hemagglutinin gene coding sequences were first assembled in the plastocyanin expression cassette--promoter, 5'UTR, 3'UTR and transcription termination sequences from the alfalfa plastocyanin gene--and the assembled cassettes were inserted into to a pCAMBIA binary plasmid. The plasmids were then transfected into Agrobacterium (AGL1), producing Agrobacterium strains AGL1/774, AGL1/540, AGL1/775, AGL1/776, AGL1/777, AGL1/778 and AGL1/779, respectively.

[0411]N. benthamiana plants were infiltrated with AGL1/774, AGL1/540, AGL1/775, AGL1/776, AGL1/777, AGL1/778 and AGL1/779 and the leaves were harvested after a six-day incubation period. To determine whether H1 accumulated in the agroinfiltrated leaves, protein was first extracted from infiltrated leaf tissue and analyzed by Western blotting using anti-HA antibodies (see Table 6 for the antibodies and conditions used for the detection of each HA subtype). For the HA from H1 strains, a unique band of approximately 72 kDa was detected in extracts (FIG. 47), corresponding in size to the uncleaved HA0 form of influenza hemagglutinin. This demonstrated that expression of different annual epidemic strains of hemagglutinin in infiltrated leaves results in the accumulation of the uncleaved translation product. Using these expression and immunodetection strategies, the expression of influenza HA from H3 subtype or B type was not detected in the crude protein extracts (FIG. 47).

Example 15

Transient Expression of Potential Pandemic Influenza Virus Hemagglutinin by Agroinfiltration in N. benthamiana Plants Using the Wild-Type Nucleotide Sequence

[0412]The ability of the transient expression system to produce potential influenza hemagglutinins was determined through the expression of the H5 subtype from strains A/Anhui/1/2005 (H5N1) (plasmid #781), A/Indonesia/5/2005 (H5N1) (plasmid #660) and A/Vietnam/1194/2004 (H5N1) (plasmid #782), the H2 subtype from strain A/Singapore/1/1957 (H2N2) (plasmid #780), the H6 from strain A/Teal/Hong Kong/W312/1997 (H6N1) (plasmid #783), the F17 for strain A/Equipe/Prague/1956 (H7N7) (plasmid #784) and finally H19 from strain A/Hong Kong/1073/1999 (H9N2) (plasmid #785). The hemagglutinin gene coding sequences were first assembled in the plastocyanin expression cassette--promoter, 5'UTR, 3'UTR and transcription termination sequences from the alfalfa plastocyanin gene--and the assembled cassettes were inserted into to a pCAMBIA binary plasmid. The plasmids were then transfected into Agrobacterium (AGL1), producing Agrobacterium strains AGL1/781, AGL1/660, AGL1/782, AGL1/780, AGL1/783, AGL1/784 and AGL1/785.

[0413]N. benthamiana plants were infiltrated with AGL1/781, AGL1/660, AGL1/782, AGL1/780, AGL1/784 and AGL1/785, and the leaves were harvested after a six-day incubation period. To determine whether H5 accumulated in the agroinfiltrated leaves, protein was first extracted from infiltrated leaf tissue and analyzed by Western blotting using appropriate anti-HA antibodies (see Table 6 for the antibodies and conditions used for the detection of each HA subtype). A unique band of approximately 72 kDa was detected in extracts of plants transformed with 1-15 and H2 expression constructs (FIG. 48a and b), corresponding in size to the uncleaved HA0 form of influenza hemagglutinin. This demonstrated that expression of different potential pandemic strains of hemagglutinin in infiltrated leaves results in the accumulation of the uncleaved translation product. Using these expression and immunodetection strategies, the expression of influenza HA from H7 and H9 was not detected in the crude protein extracts (FIG. 48b).

Example 16

Transient Expression of H5 by Agroinfiltration in N. tabacum Plants

[0414]The ability of the transient expression system to produce influenza hemagglutinin in leaves of Nicotiana tabacum was analysed through the expression of the H5 subtype from strain A/Indonesia/5/2005 (H5N1) (plasmid #660). The hemagglutinin gene coding sequences were first assembled in the plastocyanin expression cassette--promoter, 5'UTR, 3'UTR and transcription termination sequences from the alfalfa plastocyanin gene--and the assembled cassettes were inserted into to a pCAMBIA binary plasmid. The plasmids was then transfected into Agrobacterium (AGL1), producing strain AGL1/660.

[0415]N. tabacum plants were infiltrated with AGL1/660 and the leaves were harvested after a six-day incubation period. To determine whether H5 accumulated in the agroinfiltrated leaves, proteins were first extracted from infiltrated leaves and analyzed by Western blot using anti-H5 antibodies. A unique band of approximately 72 kDa was detected in extracts (FIG. 49), corresponding in size to the uncleaved HA0 form of influenza hemagglutinin. This demonstrated that expression of hemagglutinin in infiltrated N. tabacum leaves results in the accumulation of the uncleaved HA0 precursor.

Example 17

Immunogenicity of Plant-Made H5N1 VLP Vaccine from A/Indonesia/5/05 (H5N1) in Ferrets

[0416]A dose escalation study in ferrets was performed to evaluate the immunogenicity of plant derived VLPs. In vitro cross-reactivity of serum antibody induced by the H5 VLP vaccine at 3 doses (1, 5 and 15 ug) was assessed by hemagglutination inhibition of three other H5N1 strains--A/turkey/Turkey/1/05 (clade 2.2), A/Vietnam/1194/04 (clade 1) and A/Anhui/5/05 (all whole, inactivated virus), using serum taken 14 days after the first dose of vaccine (FIG. 50A), and 14 days after the 2^nd dose (FIG. 50 B). For all 3 dose concentrations, cross-reactivity is observed

Example 18

Analysis of the Immunogenicity Results According to CHMP Criteria

[0417]The EMEA's Committee for Medicinal Products for Human Use (CHMP) (http://www.emea.europa.eu/htms/general/contacts/CHMP/CHMP.html) sets out three criteria (applied following the second dose) for vaccine efficacy: 1--Number of seroconversion or significant increase in HI titers (4-fold)>40%; 2--Mean geometric increase of at least 2.5; 3--proportion of subjects achieving an HI titer of 1/40 should be at least 70%. Analysis of these criteria in the ferret model is shown in Tables 8-11. (*) is indicative of meeting or exceeding the CHMP criteria. A summary of cross-immunogenicity analysis in relation to CHMP criteria for licensure is shown in Table 12.

[0418]Animals were assessed daily for body weight, temperature and overall condition. No sign of sickness or discomfort was recorded during the study. Body weight and temperature was within normal ranges during the study. The vaccine was safe and tolerated by the animals.

TABLE-US-00010 TABLE 8 Data for homologous strain (A/Indonesia/5/05) Study group 1 μg 5 μg 15 μg 5 μg Day Criteria 1 μg adjuvanted 5 μg adjuvanted 7.5 μg 15 μg adjuvanted 30 μg ITC 14 (post % 4-fold increase in HI titer 0% 100% 0% 100%* 20% 20% 80%* 0% 0% 1st inj.) Mean geometric increase 0% 7.6 0% 15.6* 1.3 1.2 11.2* 0% 0% % of HI titer of 1/40 0% 60% 0% 100%* 20% 0% 80%* 0% 0% Mean HI titer 38 78 56 35 (14 % 4-fold increase in HI titer 0% 100%* 0% 60%* 0% 0% 40%* 0% 0% days post Mean geometric increase 0% 10.8* 0% 5.9* 0.7 0% 4* 0% 0% boost) % of HI titer of 1/40 0% 100%* 0% 100%* 0% 0% 100%* 0% 0% Mean HI titer 411 465 217

TABLE-US-00011 TABLE 9 Data for heterologous strain (A/Vietnam/1194/04) Study group 1 μg 5 μg 15 μg 5 μg Day Criteria 1 μg adjuvanted 5 μg adjuvanted 7.5 μg 15 μg adjuvanted 30 μg ITC 14 (post % 4-fold increase in HI titer 0% 0% 0% 1st inj.) Mean geometric increase 1.2 1.2 1.3 % of HI titer of 1/40 0% 0% 0% 35 (post % 4-fold increase in HI titer 60% 80%* 60% boost) Mean geometric increase 2.3 5.1* 1.78 % of HI titer of 1/40 0% 80%* 20%

TABLE-US-00012 TABLE 10 Data for heterologous strain (A/turkey/Turkey/1/05) Study group 1 μg 5 μg 15 μg 5 μg Day Criteria 1 μg adjuvanted 5 μg adjuvanted 7.5 μg 15 μg adjuvanted 30 μg ITC 14 (post % 4-fold increase in HI titer 40% 20% 60% 1st inj.) Mean geometric increase 1.9 1.7 2.8 % of HI titer of 1/40 40% 20% 40% 35 (post % 4-fold increase in HI titer 80%* 100%* 80%* boost) Mean geometric increase 10.6* 20.8* 7.7* % of HI titer of 1/40 100%* 100%* 100%*

TABLE-US-00013 TABLE 11 Data for heterologous strain (A/Anhui/5/05) Study group 1 μg 5 μg 15 μg 5 μg Day Criteria 1 μg adjuvanted 5 μg adjuvanted 7.5 μg 15 μg adjuvanted 30 μg ITC 14 (post % 4-fold increase in HI titer 40% 20% 80%* 1st inj.) Mean geometric increase 1.8 1.3 6.4* % of HI titer of 1/40 20% 20% 80%* 35 (post % 4-fold increase in HI titer 100%* 100%* 60%* boost) Mean geometric increase 11.8* 14.4* 3* % of HI titer of 1/40 100%* 80%* 80%*

TABLE-US-00014 TABLE 12 Summary of cross-immunogenicity analysis in relation to CHMP criteria for licensure. Study group 1 μg 5 μg 15 μg Strain Criteria adjuvanted adjuvanted adjuvanted A/turkey/Turkey/1/05 % 4-fold increase in HI 80% * 100% * 80% * (clade 2.2 titer Mean geometric increase 10.6 * 20.8 * 7.7 * % of HI titer of 1/40 100% * 100% * 100% * A/Anhui/1/05 (clade % 4-fold increase in HI 100% * 100% * 60% * 2.3) titer Mean geometric increase 11.8 * 14.4 * 3 * % of HI titer of 1/40 100% * 80% * 80% * A/Vietnam/1194/04 % 4-fold increase in HI 60% 80% * 60% (clade 1) titer Mean geometric increase 2.3 7.1 * 1.78 % of HI titer of 1/40 0% 80% * 20%

Example 19

Selection of Hemagglutinin Nucleotide Sequences

[0419]The nucleotide sequences of the HA were retrieved from an influenza sequence database (see URL: flu.lanl.gov), or the NCBI influenza virus resource (Bao et al., 2008. J. Virology 82(2): 596-601; see URL: ncbi.nlm.nih.gov/genomes/FLU/FLU.html). For several of the HA nucleic acid sequences, multiple entries are listed in the databases (Table 13). Some variation is associated primarily with the culture system (Origin--MDCK, egg, unknown, viral RNA/clinical isolate); for example, the glycosylation site at position 194 (mature protein numbering) of the HA is absent when type B influenza virus is expressed in allantoic fluid of eggs (see also Chen et al., 2008). For some sequences, domains may be lacking (e.g. incomplete clones, sequencing artifacts, etc.). Domains and sub-domains of influenza hemagglutinin are discussed generally in the Descrition. Domains or subdomains of a first sequence may be combined with a domain from a second existing sequence e.g. the signal peptide of a first strain sequence may be combined with the balance of the hemagglutinin coding sequence from a second strain to provide a complete coding sequence.

TABLE-US-00015 TABLE 13 Variation in Influenza subtypes for selected HA coding sequences Sequence database reference Strain No. Origin SP HA1 HA2 DTm Divergence H1 A/Solomon ISDN231558 MDCK Y Y Y Y 189: R ou G, 220: K (MDCK) Islands/3/2006 (Vaccine T(Egg), 249: Q (MDCK) rec.) R(Egg), 550: L (MDCK) R (Egg) A/Solomon ISDN238190 Egg Y Y Y Y 189: R ou G, 220: K (MDCK) Islands/3/2006 T(Egg), 249: Q (MDCK) R(Egg), 550: L (MDCK) R (Egg) A/Solomon EU100724 ? Y Y Y Y 189: R ou G, 220: K (MDCK) Islands/3/2006 T(Egg), 249: Q (MDCK) R(Egg), 550: L (MDCK) R (Egg) A/Solomon ISDN220951 MDCK Y Y N N 189: R ou G, 220: K (MDCK) Islands/3/2006 T(Egg), 249: Q (MDCK) R(Egg), 550: L (MDCK) R (Egg) A/Solomon ISDN220953 Egg Y Y N N 189: R ou G, 220: K (MDCK) Islands/3/2006 T(Egg), 249: Q (MDCK) R(Egg), 550: L (MDCK) R (Egg) A/Solomon EU124137 Egg Y Y N N 189: R ou G, 220: K (MDCK) Islands/3/2006 T(Egg), 249: Q (MDCK) R(Egg), 550: L (MDCK) R (Egg) A/Solomon EU124135 MDCK Y Y N N 189: R ou G, 220: K (MDCK) Islands/3/2006 T(Egg), 249: Q (MDCK) R(Egg), 550: L (MDCK) R (Egg) A/Solomon EU124177 MDCK Y Y Y Y 189: R ou G, 220: K (MDCK) Islands/3/2006 T(Egg), 249: Q (MDCK) R(Egg), 550: L (MDCK) R (Egg) H1 A/Brisbane/59/ ISDN282676 MDCK Y Y Y 203: D/I/N Destle plus 2007 abondant chez les H1 A/Brisbane/ ISDN285101 Egg Y Y N N 203: D/I/N Destle plus 59/2007 abondant chez les H1 A/Brisbane/ ISDN285777 Egg Y Y Y Y 203: D/I/N Destle plus 59/2007 abondant chez les H1 A/Brisbane/ ISDN282677 Egg Y Y Y Y 203: D/I/N Destle plus 59/2007 abondant chez les H1 H3 A/Brisbane/10/ ISDN274893 Egg Y Y Y Y 202: V/G, 210: L/P, 215: del 2007 Ala, 242: S/I A/Brisbane/ ISDN257648 MDCK N Y Y Y 202: V/G, 210: L/P, 215: del 10/2007 Ala, 242: S/I A/Brisbane/ ISDN256751 Egg Y Y Y Y 202: V/G, 210: L/P, 215: del 10/2007 Ala, 242: S/I A/Brisbane/ ISDN273757 Egg Y Y Y Y 202: V/G, 210: L/P, 215: del 10/2007 Ala, 242: S/I A/Brisbane/ ISDN273759 Egg Y Y Y Y 202: V/G, 210: L/P, 215: del 10/2007 Ala, 242: S/I A/Brisbane/ EU199248 Egg N Y Y Y 202: V/G, 210: L/P, 215: del 10/2007 Ala, 242: S/I A/Brisbane/ EU199366 Egg Y Y Y Y 202: V/G, 210: L/P, 215: del 10/2007 Ala, 242: S/I A/Brisbane/ ISDN257043 Egg N Y Y Y 202: V/G, 210: L/P, 215: del 10/2007 Ala, 242: S/I A/Brisbane/ EU199250 MDCK N Y Y Y 202: V/G, 210: L/P, 215: del 10/2007 Ala, 242: S/I A/Brisbane/ ISDN275357 Egg N Y N N 202: V/G, 210: L/P, 215: del 10/2007 Ala, 242: S/I A/Brisbane/ ISDN260430 Egg N Y Y Y 202: V/G, 210: L/P, 215: del 10/2007 Ala, 242: S/I H3 A/Wisconsin/ ISDN131464 ? N Y Y N 138: A/S 67/2005 (vaccine 156: H/Q rec.) 186: G/V 196: H/Y A/Wisconsin/ DQ865947 ? N Y partiel N 138: A/S 67/2005 156: H/Q 186: G/V 196: H/Y A/Wisconsin/ EF473424 ? N Y Y N 138: A/S 67/2005 156: H/Q 186: G/V 196: H/Y A/Wisconsin/ ISDN138723 Egg N Y Y Y 138: A/S 67/2005 156: H/Q 186: G/V 196: H/Y A/Wisconsin/ EF473455 Egg N Y Y Y 138: A/S 67/2005 156: H/Q 186: G/V 196: H/Y A/Wisconsin/ ISDN138724 ? N Y Y Y 138: A/S 67/2005 156: H/Q 186: G/V 196: H/Y B B/Malaysia/ ISDN126672 Egg Y Y N N 120 K/N 2506/2004 (vaccine 210 T/A rec.) B/Malaysia/ EF566433 Egg Y Y N N 120 K/N 2506/2004 210 T/A B/Malaysia/ ISDN231265 Egg Y Y Y Y 120 K/N 2506/2004 210 T/A B/Malaysia/ ISDN231557 MDCK Y Y Y Y 120 K/N 2506/2004 210 T/A B/Malaysia/ EF566394 MDCK Y Y N N 120 K/N 2506/2004 210 T/A B/Malaysia/ EU124274 Egg Y Y Y Y 120 K/N 2506/2004 210 T/A B/Malaysia/ EU124275 MDCK Y Y Y Y 120 K/N 2506/2004 210 T/A B/Malaysia/ ISDN124776 MDCK Y Y N N 120 K/N 2506/2004 210 T/A B B/Florida/4/ ISDN261649 Egg Y Y Y N lacking glycosylation site at 2006 position 211; 10 amino acids of DTm/cytoplasmic tail B/Florida/4/ EU100604 MDCK N Y N N 2006 B/Florida/4/ ISDN218061 MDCK N Y N N 2006 B/Florida/4/ ISDN285778 Egg Y Y Y Y Includes cytoplasmic tail 2006 B B/Brisbane/3/ ISDN256628 Egg N Y N N lacking glycosylation site at 2007 position 211 B/Brisbane/ ISDN263782 Egg Y Y Y Y lacking glycosylation site at 3/2007 position 211 B/Brisbane/ ISDN263783 MDCK Y Y Y Y 3/2007 H5 A/Viet ISDN38686 ? Y Y Y Y Nam/1194/2004 (Vaccine rec.) A/Viet AY651333 ? Y Y Y Y Nam/1194/2004 A/Viet EF541402 ? Y Y Y Y Nam/1194/2004 H5 A/Anhui1/1/ DQ37928 ? Y Y Y Y 2005 (vaccine rec.) A/Anhui1/1/ ISDN131465 Egg Y Y Y Y 2005 H7 A/Chicken/Italy/ AJ91720 ARN Y Y Y Y 13474/1999 gen H7 A/Equine/Prague/ AB298277 ? Y Y Y Y 152 (R/G) 56 (Lab 169 (T/I) reassortant) 208 (N/D) (glycosylation site abolished) A/Equine/Prague/ X62552 ? Y Y Y Y 56 H9 A/Hong AJ404626 ? Y Y Y Y Kong/1073/1999 A/Hong AB080226 ? N Y N N Kong/1073/1999 H2 A/Singapore/ AB296074 ? Y Y Y Y 1/1957 A/Singapore/ L20410 RNA Y Y Y Y 1/1957 A/Singapore/ L11142 ? Y Y Y Y 1/1957 H2 A/Japan/305/ L20406 ? Y Y Y Y 1957 A/Japan/305/ L20407 ? Y Y Y Y 1957 A/Japan/305/ CY014976 ? Y Y Y Y 1957 A/Japan/305/ AY209953 ? Y Y N N 1957 A/Japan/305/ J02127 ? Y Y Y Y 1957 A/Japan/305/ DQ508841 ? Y Y Y Y 1957 A/Japan/305/ AY643086 ? Y Y Y N 1957 A/Japan/305/ AB289337 ? Y Y Y Y 1957 A/Japan/305/ AY643085 ? Y Y Y Y 1957 A/Japan/305/ AY643087 Drug Y Y Y N 1957 resistant H6 A/Teal/Hong AF250479 Egg Y Y Y Y Kong/W312/ 1997 (H6N1) Y, N--Yes, No, respectively SP - presence of signal peptide sequence Y/N HA1 - complete HA1 domain Y/N HA2 - complete HA2 domain Y/N DTm - complete transmembrane domain Y/N

Strain: H1 from A/Solomon Islands/3/2006

[0420]Eight amino acid sequences were compared, and variations identified. (Table 14). Position 171 exhibited a variation of glycine (G) or arginine (R) in some sequences.

TABLE-US-00016 TABLE 14 A/Solomon Islands/3/2006 amino acid variation Amino acid # MDCK Egg 212 K T 241 Q R 542 L R Numbering from the starting M

Strain: H1 from A/Brisbane/59/2007

[0421]Position 203 exhibited a variation of aspartic acid (D), isoleucine (I) or asparagine

Strain: H3 from A/Brisbane/10/2007

[0422]Sequence variations were observed at 5 positions (Table 15). In position 215, a deletion is observed in two sampled sequences.

TABLE-US-00017 TABLE 15 H3 from A/Brisbane/10/2007 amino acid variation Origin 202, 210, 215, 235 242* ISDN274893 Egg V L -- Y I ISDN273759 Egg G P A S I EU199248 Egg G P A S I EU199366 Egg G P A S I ISDN273757 Egg V L -- S S ISDN257043 Egg G P A S I EU199250 MDCK G L A S I ISDN375357 Egg G P A S I ISDN260430 Egg G P A S I ISDN256751 Egg G P A S I ISDN257648 MDCK G L A S I *Numbering from the starting M

Strain: H3 from A/Wisconsin/67/2005

[0423]Sequence variations in this strain were observed at 4 positions (Table 16).

TABLE-US-00018 TABLE 16 H3 from A/Wisconsin/67/2005 amino acid variation Origin 138, 156, 186, 196 ISDN138724 Unknown A H G H DQ865947 Unknown S H V Y EF473424 Unknown A H G H ISDN138723 Egg S Q V Y ISDN131464 Unknown A H G H EF473455 Egg A H G H *Numbering from the mature protein

Strain: B from B/Malaysia/2506/2004

[0424]Variation at two positions is observed (Table 17). Position 120 is not a glycosylation site; position 210 is involved in glycosylation; this glycosylation is abolished following culture in eggs.

TABLE-US-00019 TABLE 17 Hemagglutinin from B/Malaysia/2506/2004 amino acid variation Amino acid #* MDCK Egg 120 K N 210 T A *Numbering from the middle of SP

Strain: hemagglutinin from B/Florida/4/2006; ISDN261649

[0425]Observed variations include amino acid sequence variation at position 211, depending on the culture system. Asparatine (N) is found in sequences isolated from MDCK cells, while glutamic acid (D) is found in sequence isolated from eggs. Position 211 is a glycosylation site, and is abolished following culture in eggs.

Strain: H2 from A/Singapore/1/1957

[0426]Sequence variations were observed in 6 position s (Table 18).

TABLE-US-00020 TABLE 18 H2 from A/Singapore/1/1957 amino acid variation Amino acid No. Origin 166 168 199\ 236 238 358 L20410 Viral K E T L S V RNA L11142 Unknown E G K L S I AB296074 Unknown K G T Q G V Consensus K G T Q/L G V A/Japan/305/1957 ¹Numbering from the mature protein

Strains: H5 from A/Vietnam/1194/2004 and H5 from A/Anhui/1/2005

[0427]There were no variations observed in the amino acid sequence upon aligning the primary sequences of either of these H5 strains.

Strain: H6 from A/Teal/Hong Kong/W312/1997

[0428]Only one entry was available for strain (AF250179).

Strain: H7 from A/Equine/Prague/56

[0429]A total of 2 sequence entries were found in the databases. The entry AB298877 was excluded as it is a laboratory reassortant.

Strain: H9 from A/Hong Kong/1073/1999; AJ404626

[0430]A total of 2 sequence entries were found in the databases. Only one was complete.

Example 20

Transient Expression of Influenza Virus Hemagglutinin Fused to a Signal Peptide from a Plant Secreted Protein

[0431]The effect of signal peptide modification on HA accumulation level for other hemagglutinins was also investigated through the expression of the A subtype HAs from strains A/Brisbane/59/2007 (H1N1) (plasmid #787), A/New Calcdonia/20/1999 (H1N1) (plasmid #540), from strains A/Brisbane/10/2007 (H3N2) (plasmid 790) and A/Indonesia/5/2005 (H5N1) (plasmid #663) and of the B type from strains B/Florida/4/2006 (plasmid #798) fused to the signal peptide (SP; nucleotides 32-103) from of alfalfa protein disulfide isomerase (PDI; accession No. Z11499; SEQ. ID. NO: 34; FIG. 17). The PDI SP-hemagglutinin gene fusions were assembled in the plastocyanin expression cassette--promoter, 5'UTR, 3'UTR and transcription termination sequences from the alfalfa plastocyanin gene--and the assembled cassettes were inserted into to a pCAMBIA binary plasmid. The plasmids were then transfected into Agrobacterium (AGL1), producing Agrobacterium strains AGL1/787, AGL1/540, AGL1/790, AGL1/663 and AGL1/798, respectively.

[0432]N. benthamiana plants were infiltrated with AGL1/787, AGL1/540, AGL1/790, AGL1/663 and AGL1/798. In parallel, a series of plants was infiltrated with AGL1/774, AGL776, AGL1/660 and AGL1/779 for comparison purposes. Leaves were harvested after a six-day incubation period and proteins were extracted from infiltrated leaves and analyzed by Western blot using the appropriate anti-HA antibodies. The expression of HA from H1/Brisbane and H3/Brisbane were considerably improved using the SP from PDI compared to the expression observed for the same HAs with their native signal peptide (FIG. 87b and c, respectively). The expression of a third HA from subtype H1 (strain A/New Calcdonia/20/1999) was confirmed using this SP replacement strategy (FIG. 87a). The modification of signal peptide did not lead to substantial increase in HA accumulation for H5 (A/Indonesia/5/2005) (FIG. 87d), and no signal was detected for HA from strain B/Florida/4/2006, irrespectively of the signal peptide used for expression (FIG. 87e). For all the conditions where the expression of HA was detected, a unique immunoreactive band was observed at a molecular weight of approximately 72 kDa (FIG. 87a to d), corresponding in size to the uncleaved HA0 precursor.

Example 21

HA Expression Under the Control of CPMV-HT Expression Cassette

[0433]An expression cassette CPMV-HT (Sainsbury et al. 2008 Plant Physiology 148: 1212-1218; see also WO 2007/135480) comprising untranslated sequences from the Cowpea mosaic virus (CPMV) RNA2 was used for expression of some hemagglutinins in transgenic plants. HA from A/New Calcdonia/20/1999 (H1), A/Brisbane/59/2007 (H1), A/Brisbane/10/2007 (H3), A/Indonesia/5/2005 (H5) and B/Florida/4/2006 (B) were expressed under the control of CPMV-HT in N. benthamiana plants, agroinfiltrated as described. After incubation, leaves were harvest, extracted and HA contents in protein extracts were compared by Western blot. As shown in FIG. 88, the CPMV-HT expression cassette led to higher HA expression level than the plastocyanin cassette, irrespectively of the signal peptide used. Furthermore, for strain B from B/Florida/4/2006, the use of CPMV-HT expression cassette allowed the detection of HA accumulation which remained undetectable under these immunodetection conditions when expressed under the plastocyanin cassette.

TABLE-US-00021 TABLE 19 Expression cassette used for expression of influenza hemagglutinins with native or PDI signal peptides. Agro HA Signal Expression strain expressed Peptide Cassette AGL1/540 H1 (A/New Caledonia/20/99) PDI Plastocyanin AGL1/580 H1 (A/New Caledonia/20/99) PDI CPMV-HT AGL1/774 H1 (A/Brisbane/59/2007) native Plastocyanin AGL1/787 H1 (A/Brisbane/59/2007) PDI Plastocyanin AGL1/732 H1 (A/Brisbane/59/2007) native CPMV-HT AGL1/776 H3 (A/Brisbane/10/2007) native Plastocyanin AGL1/790 H3 (A/Brisbane/10/2007) PDI Plastocyanin AGL1/735 H3 (A/Brisbane/10/2007) native CPMV-HT AGL1/736 H3 (A/Brisbane/10/2007) PDI CPMV-HT AGL1/660 H5 (A/Indonesia/5/2005) native Plastocyanin AGL1/685 H5 (A/Indonesia/5/2005) native CPMV-HT AGL1/779 B (B/Florida/4/2006) native Plastocyanin AGL1/798 B (B/Florida/4/2006) PDI Plastocyanin AGL1/738 B (B/Florida/4/2006) native CPMV-HT AGL1/739 B (B/Florida/4/2006) PDI CPMV-HT

Example 22

Co-Expression with Hsp70 and Hsp40 in Combination with Signal Peptide Modification

[0434]Cytosolic Hsp70 and Hsp40 (construct number R870) of plant origin were co-expressed with H1 New Calcdonia (construct number 540) or H3Brisbane (construct number 790), both bearing a signal peptide of plant origin (alfalfa PDI signal peptide). The co-expression was performed by agroinfiltration of N. benthamiana plants with a bacterial suspension containing a mixture (1:1:1 ratio) of AGL1/540, AGL1/R870, AGL1/35SHcPro (For H1) or AGL1/790, AGL1/R870 and AGL1/35SHcPro (for H3). Control plants were agroinfiltrated with a mixture (1:2 ratio) of AGL1/540, AGL1/35SHcPro (for H1) or AGL1/790, AGL1/35SHcPro (for H3). After incubation, leaves were harvest, extracted and HA contents in protein extracts were compared by Western blot (FIG. 89). In the conditions tested the results obtained indicate that the co-expression of Hsp70 and Hsp40 did not increase hemagglutinin accumulation level for H1New Calcdonia. However, for H3Brisbane, the Western blot clearly indicated that the co-expression of cytosolic Hsp70 and Hsp40 resulted in a significant increase in hemagglutinin accumulation level.

[0435]All citations are hereby incorporated by reference.

[0436]The present invention has been described with regard to one or more embodiments. However, it will be apparent to persons skilled in the art that a number of variations and modifications can be made without departing from the scope of the invention as defined in the claims.

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Sequence CWU 1

12611556DNAInfluenza virus A 1agatcttcgc tgacacaata tgtataggct accatgccaa caactcaacc gacactgttg 60acacagtact tgagaagaat gtgacagtga cacactctgt caacctactt gaggacagtc 120acaatggaaa actatgtcta ctaaaaggaa tagccccact acaattgggt aattgcagcg 180ttgccggatg gatcttagga aacccagaat gcgaattact gatttccaag gaatcatggt 240cctacattgt agaaacacca aatcctgaga atggaacatg ttacccaggg tatttcgccg 300actatgagga actgagggag caattgagtt cagtatcttc atttgagaga ttcgaaatat 360tccccaaaga aagctcatgg cccaaccaca ccgtaaccgg agtatcagca tcatgctccc 420ataatgggaa aagcagtttt tacagaaatt tgctatggct gacggggaag aatggtttgt 480acccaaacct gagcaagtcc tatgtaaaca acaaagagaa agaagtcctt gtactatggg 540gtgttcatca cccgcctaac atagggaacc aaagggcact ctatcataca gaaaatgctt 600atgtctctgt agtgtcttca cattatagca gaagattcac cccagaaata gccaaaagac 660ccaaagtaag agatcaggaa ggaagaatca actactactg gactctgctg gaacctgggg 720atacaataat atttgaggca aatggaaatc taatagcgcc atggtatgct tttgcactga 780gtagaggctt tggatcagga atcatcacct caaatgcacc aatggatgaa tgtgatgcga 840agtgtcaaac acctcaggga gctataaaca gcagtcttcc tttccagaat gtacacccag 900tcacaatagg agagtgtcca aagtatgtca ggagtgcaaa attaaggatg gttacaggac 960taaggaacat cccatccatt caatccagag gtttgtttgg agccattgcc ggtttcattg 1020aaggggggtg gactggaatg gtagatgggt ggtatggtta tcatcatcag aatgagcaag 1080gatctggcta tgctgcagat caaaaaagta cacaaaatgc cattaacggg attacaaaca 1140aggtcaattc tgtaattgag aaaatgaaca ctcaattcac agctgtgggc aaagagttca 1200acaaattgga aagaaggatg gaaaacttaa ataaaaaagt tgatgatggg tttctagaca 1260tttggacata taatgcagaa ttgttggttc tactggaaaa tgaaaggact ttggatttcc 1320atgactccaa tgtgaagaat ctgtatgaga aagtaaaaag ccaattaaag aataatgcca 1380aagaaatagg aaacgggtgt tttgagttct atcacaagtg taacaatgaa tgcatggaga 1440gtgtgaaaaa tggtacctat gactatccaa aatattccga agaatcaaag ttaaacaggg 1500agaaaattga tggagtgaaa ttggaatcaa tgggagtata ctaagagctc aggcct 15562219DNAInfluenza virus A 2ggtacctatg actatccaaa atattccgaa gaatcaaagt taaacaggga gaaaattgat 60ggagtgaaat tggaatcaat gggagtatac cagattctgg cgatctactc aactgtcgcc 120agttccctgg ttcttttggt ctccctgggg gcaatcagct tctggatgtg ttccaatggg 180tctttgcagt gtagaatatg catctaagag ctcaggcct 21931719DNAInfluenza virus A 3aagcttatgg agaaaatagt gcttcttctt gcaatagtca gtcttgttaa aagtgatcag 60atttgcattg gttaccatgc aaacaattca acagagcagg ttgacacaat catggaaaag 120aacgttactg ttacacatgc ccaagacata ctggaaaaga cacacaacgg gaagctctgc 180gatctagatg gagtgaagcc tctaatttta agagattgta gtgtagctgg atggctcctc 240gggaacccaa tgtgtgacga attcatcaat gtaccggaat ggtcttacat agtggagaag 300gccaatccaa ccaatgacct ctgttaccca gggagtttca acgactatga agaactgaaa 360cacctattga gcagaataaa ccattttgag aaaattcaaa tcatccccaa aagttcttgg 420tccgatcatg aagcctcatc aggagttagc tcagcatgtc catacctggg aagtccctcc 480ttttttagaa atgtggtatg gcttatcaaa aagaacagta catacccaac aataaagaaa 540agctacaata ataccaacca agaggatctt ttggtactgt ggggaattca ccatcctaat 600gatgcggcag agcagacaag gctatatcaa aacccaacca cctatatttc cattgggaca 660tcaacactaa accagagatt ggtaccaaaa atagctacta gatccaaagt aaacgggcaa 720agtggaagga tggagttctt ctggacaatt ttaaaaccta atgatgcaat caacttcgag 780agtaatggaa atttcattgc tccagaatat gcatacaaaa ttgtcaagaa aggggactca 840gcaattatga aaagtgaatt ggaatatggt aactgcaaca ccaagtgtca aactccaatg 900ggggcgataa actctagtat gccattccac aacatacacc ctctcaccat cggggaatgc 960cccaaatatg tgaaatcaaa cagattagtc cttgcaacag ggctcagaaa tagccctcaa 1020agagagagca gaagaaaaaa gagaggacta tttggagcta tagcaggttt tatagaggga 1080ggatggcagg gaatggtaga tggttggtat gggtaccacc atagcaatga gcaggggagt 1140gggtacgctg cagacaaaga atccactcaa aaggcaatag atggagtcac caataaggtc 1200aactcaatca ttgacaaaat gaacactcag tttgaggccg ttggaaggga atttaataac 1260ttagaaagga gaatagagaa tttaaacaag aagatggaag acgggtttct agatgtctgg 1320acttataatg ccgaacttct ggttctcatg gaaaatgaga gaactctaga ctttcatgac 1380tcaaatgtta agaacctcta cgacaaggtc cgactacagc ttagggataa tgcaaaggag 1440ctgggtaacg gttgtttcga gttctatcac aaatgtgata atgaatgtat ggaaagtata 1500agaaacggaa cgtacaacta tccgcagtat tcagaagaag caagattaaa aagagaggaa 1560ataagtgggg taaaattgga atcaatagga acttaccaaa tactgtcaat ttattcaaca 1620gtggcgagtt ccctagcact ggcaatcatg atggctggtc tatctttatg gatgtgctcc 1680aatggatcgt tacaatgcag aatttgcatt taagagctc 1719425DNAArtificial sequencePlasto-443c primer 4gtattagtaa ttagaatttg gtgtc 25544DNAArtificial sequenceSpHA(Ind)-Plasto.r primer 5gcaagaagaa gcactatttt ctccattttc tctcaagatg atta 44645DNAArtificial sequencePlasto-SpHA(Ind).c primer 6ttaatcatct tgagagaaaa tggagaaaat agtgcttctt cttgc 45738DNAArtificial sequenceHA(Ind)-Sac.r primer 7actttgagct cttaaatgca aattctgcat tgtaacga 3881471DNAArtificial sequenceAlfalfa plastocyanin-based cassette 8agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tggcgaaaaa cgttgcgatt 1020ttcggcttat tgttttctct tcttgtgttg gttccttctc agatctgagc tctaagttaa 1080aatgcttctt cgtctcctat ttataatatg gtttgttatt gttaattttg ttcttgtaga 1140agagcttaat taatcgttgt tgttatgaaa tactatttgt atgagatgaa ctggtgtaat 1200gtaattcatt tacataagtg gagtcagaat cagaatgttt cctccataac taactagaca 1260tgaagacctg ccgcgtacaa ttgtcttata tttgaacaac taaaattgaa catcttttgc 1320cacaacttta taagtggtta atatagctca aatatatggt caagttcaat agattaataa 1380tggaaatatc agttatcgaa attcattaac aatcaactta acgttattaa ctactaattt 1440tatatcatcc cctttgataa atgatagtac a 14719565PRTInfluenza virus A 9Met Lys Ala Lys Leu Leu Val Leu Leu Cys Thr Phe Thr Ala Thr Tyr1 5 10 15Ala Asp Thr Ile Cys Ile Gly Tyr His Ala Asn Asn Ser Thr Asp Thr 20 25 30Val Asp Thr Val Leu Glu Lys Asn Val Thr Val Thr His Ser Val Asn 35 40 45Leu Leu Glu Asp Ser His Asn Gly Lys Leu Cys Leu Leu Lys Gly Ile 50 55 60Ala Pro Leu Gln Leu Gly Asn Cys Ser Val Ala Gly Trp Ile Leu Gly65 70 75 80Asn Pro Glu Cys Glu Leu Leu Ile Ser Lys Glu Ser Trp Ser Tyr Ile 85 90 95Val Glu Thr Pro Asn Pro Glu Asn Gly Thr Cys Tyr Pro Gly Tyr Phe 100 105 110Ala Asp Tyr Glu Glu Leu Arg Glu Gln Leu Ser Ser Val Ser Ser Phe 115 120 125Glu Arg Phe Glu Ile Phe Pro Lys Glu Ser Ser Trp Pro Asn His Thr 130 135 140Val Thr Gly Val Ser Ala Ser Cys Ser His Asn Gly Lys Ser Ser Phe145 150 155 160Tyr Arg Asn Leu Leu Trp Leu Thr Gly Lys Asn Gly Leu Tyr Pro Asn 165 170 175Leu Ser Lys Ser Tyr Val Asn Asn Lys Glu Lys Glu Val Leu Val Leu 180 185 190Trp Gly Val His His Pro Pro Asn Ile Gly Asn Gln Arg Ala Leu Tyr 195 200 205His Thr Glu Asn Ala Tyr Val Ser Val Val Ser Ser His Tyr Ser Arg 210 215 220Arg Phe Thr Pro Glu Ile Ala Lys Arg Pro Lys Val Arg Asp Gln Glu225 230 235 240Gly Arg Ile Asn Tyr Tyr Trp Thr Leu Leu Glu Pro Gly Asp Thr Ile 245 250 255Ile Phe Glu Ala Asn Gly Asn Leu Ile Ala Pro Trp Tyr Ala Phe Ala 260 265 270Leu Ser Arg Gly Phe Gly Ser Gly Ile Ile Thr Ser Asn Ala Pro Met 275 280 285Asp Glu Cys Asp Ala Lys Cys Gln Thr Pro Gln Gly Ala Ile Asn Ser 290 295 300Ser Leu Pro Phe Gln Asn Val His Pro Val Thr Ile Gly Glu Cys Pro305 310 315 320Lys Tyr Val Arg Ser Ala Lys Leu Arg Met Val Thr Gly Leu Arg Asn 325 330 335Ile Pro Ser Ile Gln Ser Arg Gly Leu Phe Gly Ala Ile Ala Gly Phe 340 345 350Ile Glu Gly Gly Trp Thr Gly Met Val Asp Gly Trp Tyr Gly Tyr His 355 360 365His Gln Asn Glu Gln Gly Ser Gly Tyr Ala Ala Asp Gln Lys Ser Thr 370 375 380Gln Asn Ala Ile Asn Gly Ile Thr Asn Lys Val Asn Ser Val Ile Glu385 390 395 400Lys Met Asn Thr Gln Phe Thr Ala Val Gly Lys Glu Phe Asn Lys Leu 405 410 415Glu Arg Arg Met Glu Asn Leu Asn Lys Lys Val Asp Asp Gly Phe Leu 420 425 430Asp Ile Trp Thr Tyr Asn Ala Glu Leu Leu Val Leu Leu Glu Asn Glu 435 440 445Arg Thr Leu Asp Phe His Asp Ser Asn Val Lys Asn Leu Tyr Glu Lys 450 455 460Val Lys Ser Gln Leu Lys Asn Asn Ala Lys Glu Ile Gly Asn Gly Cys465 470 475 480Phe Glu Phe Tyr His Lys Cys Asn Asn Glu Cys Met Glu Ser Val Lys 485 490 495Asn Gly Thr Tyr Asp Tyr Pro Lys Tyr Ser Glu Glu Ser Lys Leu Asn 500 505 510Arg Glu Lys Ile Asp Gly Val Lys Leu Glu Ser Met Gly Val Tyr Gln 515 520 525Ile Leu Ala Ile Tyr Ser Thr Val Ala Ser Ser Leu Val Leu Leu Val 530 535 540Ser Leu Gly Ala Ile Ser Phe Trp Met Cys Ser Asn Gly Ser Leu Gln545 550 555 560Cys Arg Ile Cys Ile 56510568PRTInfluenza virus A 10Met Glu Lys Ile Val Leu Leu Leu Ala Ile Val Ser Leu Val Lys Ser1 5 10 15Asp Gln Ile Cys Ile Gly Tyr His Ala Asn Asn Ser Thr Glu Gln Val 20 25 30Asp Thr Ile Met Glu Lys Asn Val Thr Val Thr His Ala Gln Asp Ile 35 40 45Leu Glu Lys Thr His Asn Gly Lys Leu Cys Asp Leu Asp Gly Val Lys 50 55 60Pro Leu Ile Leu Arg Asp Cys Ser Val Ala Gly Trp Leu Leu Gly Asn65 70 75 80Pro Met Cys Asp Glu Phe Ile Asn Val Pro Glu Trp Ser Tyr Ile Val 85 90 95Glu Lys Ala Asn Pro Thr Asn Asp Leu Cys Tyr Pro Gly Ser Phe Asn 100 105 110Asp Tyr Glu Glu Leu Lys His Leu Leu Ser Arg Ile Asn His Phe Glu 115 120 125Lys Ile Gln Ile Ile Pro Lys Ser Ser Trp Ser Asp His Glu Ala Ser 130 135 140Ser Gly Val Ser Ser Ala Cys Pro Tyr Leu Gly Ser Pro Ser Phe Phe145 150 155 160Arg Asn Val Val Trp Leu Ile Lys Lys Asn Ser Thr Tyr Pro Thr Ile 165 170 175Lys Lys Ser Tyr Asn Asn Thr Asn Gln Glu Asp Leu Leu Val Leu Trp 180 185 190Gly Ile His His Pro Asn Asp Ala Ala Glu Gln Thr Arg Leu Tyr Gln 195 200 205Asn Pro Thr Thr Tyr Ile Ser Ile Gly Thr Ser Thr Leu Asn Gln Arg 210 215 220Leu Val Pro Lys Ile Ala Thr Arg Ser Lys Val Asn Gly Gln Ser Gly225 230 235 240Arg Met Glu Phe Phe Trp Thr Ile Leu Lys Pro Asn Asp Ala Ile Asn 245 250 255Phe Glu Ser Asn Gly Asn Phe Ile Ala Pro Glu Tyr Ala Tyr Lys Ile 260 265 270Val Lys Lys Gly Asp Ser Ala Ile Met Lys Ser Glu Leu Glu Tyr Gly 275 280 285Asn Cys Asn Thr Lys Cys Gln Thr Pro Met Gly Ala Ile Asn Ser Ser 290 295 300Met Pro Phe His Asn Ile His Pro Leu Thr Ile Gly Glu Cys Pro Lys305 310 315 320Tyr Val Lys Ser Asn Arg Leu Val Leu Ala Thr Gly Leu Arg Asn Ser 325 330 335Pro Gln Arg Glu Ser Arg Arg Lys Lys Arg Gly Leu Phe Gly Ala Ile 340 345 350Ala Gly Phe Ile Glu Gly Gly Trp Gln Gly Met Val Asp Gly Trp Tyr 355 360 365Gly Tyr His His Ser Asn Glu Gln Gly Ser Gly Tyr Ala Ala Asp Lys 370 375 380Glu Ser Thr Gln Lys Ala Ile Asp Gly Val Thr Asn Lys Val Asn Ser385 390 395 400Ile Ile Asp Lys Met Asn Thr Gln Phe Glu Ala Val Gly Arg Glu Phe 405 410 415Asn Asn Leu Glu Arg Arg Ile Glu Asn Leu Asn Lys Lys Met Glu Asp 420 425 430Gly Phe Leu Asp Val Trp Thr Tyr Asn Ala Glu Leu Leu Val Leu Met 435 440 445Glu Asn Glu Arg Thr Leu Asp Phe His Asp Ser Asn Val Lys Asn Leu 450 455 460Tyr Asp Lys Val Arg Leu Gln Leu Arg Asp Asn Ala Lys Glu Leu Gly465 470 475 480Asn Gly Cys Phe Glu Phe Tyr His Lys Cys Asp Asn Glu Cys Met Glu 485 490 495Ser Ile Arg Asn Gly Thr Tyr Asn Tyr Pro Gln Tyr Ser Glu Glu Ala 500 505 510Arg Leu Lys Arg Glu Glu Ile Ser Gly Val Lys Leu Glu Ser Ile Gly 515 520 525Thr Tyr Gln Ile Leu Ser Ile Tyr Ser Thr Val Ala Ser Ser Leu Ala 530 535 540Leu Ala Ile Met Met Ala Gly Leu Ser Leu Trp Met Cys Ser Asn Gly545 550 555 560Ser Leu Gln Cys Arg Ile Cys Ile 565111629DNAInfluenza virus A 11gacaaaatat gtcttgggca ccatgctgtg gcaaatggaa caaaagtgaa cacattaaca 60gagaggggga ttgaagtagt gaacgccaca gagacggtgg aaactgcgaa tatcaagaaa 120atatgtattc aagggaaaag gccaacagat ctgggacaat gtggacttct aggaacccta 180ataggacctc cccaatgtga tcaattcctg gagttttact ctgatttgat aattgagcga 240agagaaggaa ccgatgtgtg ctatcccggt aaattcacaa atgaagaatc actgaggcag 300atccttcgag ggtcaggagg aattgataag gagtcaatgg gtttcaccta tagtggaata 360agaaccaatg gagcgacaag tgcctgcaaa agatcaggtt cttctttcta tgcagagatg 420aagtggttgc tgtcgaattc agacaatgcg gcattccctc aaatgacaaa gtcgtataga 480aatcccagaa acaaaccagc tctgataatt tggggagttc atcactctgg atcggttagc 540gagcagacca aactctatgg aagtggaaac aagttgataa cagtaggaag ctcaaaatac 600cagcaatcat tcaccccaag tccgggagca cggccacaag tgaatggaca atcagggaga 660atcgattttc actggctact ccttgatccc aatgacacag tgaccttcac tttcaatggg 720gcattcatag cccctgacag ggcaagtttc tttagaggag aatcactagg agtccagagt 780gatgttcctc tggattctag ttgtggaggg gattgctttc acagtggggg tacgatagtc 840agttccctgc cattccaaaa catcaaccct agaactgtgg ggagatgccc tcggtatgtc 900aaacagacaa gcctcctttt ggctacagga atgagaaatg ttccagagaa tccaaagccc 960agaggccttt ttggagcaat tgctggattc atagagaatg gatgggaggg tctcatcgat 1020ggatggtatg gtttcagaca tcaaaatgca caaggggaag gaactgcagc tgactacaaa 1080agcacccaat ctgcaataga tcagatcaca ggcaaattga atcgtctgat tgacaaaaca 1140aatcagcagt ttgagctgat agacaatgag ttcaatgaga tagaacaaca aataggaaat 1200gtcattaatt ggacacgaga cgcaatgact gaggtatggt cgtataatgc tgagctgttg 1260gtggcaatgg aaaatcagca tacaatagat cttgcggact cagaaatgaa caaactttat 1320gagcgtgtca gaaaacaact aagggagaat gctgaagaag atggaactgg atgttttgag 1380atattccata agtgtgatga tcagtgcatg gagagcataa ggaacaacac ttatgaccat 1440actcaataca gaacagagtc attgcagaat agaatacaga tagacccagt gaaattgagt 1500agtggataca aagacataat cttatggttt agcttcgggg catcatgttt tcttcttcta 1560gccgttgtaa tgggattggt tttcatttgc ataaagaatg gaaacatgcg gtgcaccatt 1620tgtatataa 1629121773DNAInfluenza virus A 12agcaaaagca ggggttatac catagacaac caaaggcaag acaatggcca tcatttatct 60aattcttctg ttcacagcag tgagagggga ccaaatatgc attggatacc attccaacaa 120ttccacagaa aaggttgaca caatcctaga gagaaatgtc actgtgactc acgctgagga 180cattcttgag aagactcaca atgggaagtt atgcaaacta aatggaatcc ctccacttga 240attaagggat tgcagcattg ccggatggct ccttgggaat ccagaatgtg atatacttct 300aactgtgcca gaatggtcat acataataga aaaagaaaat ccaaggaacg gcttgtgcta 360cccaggcagt ttcaatgatt atgaagaatt gaagcatctt atcagcagcg tgacacattt 420tgagaaagta aagattctgc ccagaaatga atggacacag catacaacaa ctggaggttc 480acaggcttgc gcagactatg gtggtccgtc attcttccgg aacatggtct ggttgacaaa 540gaaagggtcg aattatccaa ttgccaaaag atcttacaac aatacaagtg gggaacaaat 600gctgatcatt tgggggatac atcaccccaa tgatgaaagt gaacaaagag cattgtatca 660gaatgtgggg acctatgtgt cagtaggaac atcaacactg aacaaaagat catccccaga 720aatagcaaca agacctaaag tgaatggaca aggaggcaga atggaattct cgtggactat

780cttagatata tgggacacaa taaattttga gagtactggc aatctaattg caccagaata 840tggtttcaaa atatccaaac gaggtagttc agggatcatg aaaacagaag gaaaacttga 900aaactgcgag accaagtgcc aaactccttt gggagcaata aatacaacat taccctttca 960caatatccac ccactgacca ttggtgagtg ccccaaatat gtaaaatcgg aaagattagt 1020cttagcaaca ggactaagaa acgtccctca gattgagtca aggggattgt ttggggcaat 1080agctggtttt atagagggtg gatggcaagg aatggttgat ggttggtatg ggtatcatca 1140cagcaatgac cagggatctg ggtatgcagc agacaaagaa tccactcaaa aggcaattga 1200tggaatcacc aacaaggtaa attctgtgat cgaaaagatg aacacccaat tcggagctgt 1260tggaaaagaa ttcagtaact tggagagaag actggagaac ttgaataaaa agatggagga 1320cggatttcta gatgtgtgga catacaatgc cgagctccta gttctaatgg aaaatgagag 1380gacacttgac tttcatgatt ctaatgtcaa gaatctatat gataaagtca gaatgcaact 1440gagagacaat gcaaaagaac tagggaatgg atgttttgaa ttttatcaca aatgtgatga 1500tgaatgcatg aacagtgtga agaatgggac atatgattat tccaagtatg aagaggagtc 1560taaactaaac aggactgaaa tcaaaggggt taaattgagc aatatggggg tttatcaaat 1620ccttgccatc tatgctacag tagcaggttc cctgtcactg gcaatcatga tagctgggat 1680ttctatatgg atgtgctcca acgggtctct gcaatgcaga atctgcatat gatcatcagt 1740cattttgtaa ttaaaaacac ccttgtttct act 1773131086DNAInfuenza virus A 13caaaaacttc ccggaaatga caacagcacg gcaacgctgt gccttgggca ccatgcagta 60ccaaacggaa cgatagtgaa aacaatcacg aatgaccaaa ttgaagttac taatgctact 120gagctggtac agagttcctc aacaggtgga atatgcgaca gtcctcatca gatccttgat 180ggagaaaact gcacactaat agatgctcta ttgggagacc ctcagtgtga tggcttccaa 240aataagaaat gggacctttt tgttgaacgc agcaaagcct acagcaactg ttacccttat 300gatgtgccgg attatgcctc ccttaggtca ctagttgcct catccggcac actggagttt 360aacaatgaaa gcttcgattg gactggagtc actcagaatg gaacaagctc tgcttgcaaa 420aggagatcta ataaaagttt ctttagtaga ttgaattggt tgacccactt aaaatacaaa 480tacccagcat tgaacgtgac tatgccaaac aatgaaaaat ttgacaaatt gtacatttgg 540ggggttcacc acccgggtac ggacagtgac caaatcagcc tatatgctca agcatcagga 600agaatcacag tctctaccaa aagaagccaa caaactgtaa tcccgaatat cggatctaga 660cccagggtaa gggatgtctc cagccgaata agcatctatt ggacaatagt aaaaccggga 720gacatacttt tgattaacag cacagggaat ctaattgctc ctcggggtta cttcaaaata 780cgaagtggga aaagctcaat aatgagatca gatgcaccca ttggcaaatg caattccgaa 840tgcatcactc caaatggaag cattcccaat gacaaaccat ttcaaaatgt aaacaggatc 900acatatgggg cctgtcccag atatgttaag caaaacactc tgaaattggc aacagggatg 960cgaaatgtac cagagaaaca aactagaggc atatttggcg caatcgcggg tttcatagaa 1020aatggttggg agggaatggt ggacggttgg tacggtttca ggcatcaaaa ttctgagggc 1080acagga 1086141048DNAInfluenza virus A 14atgctatcaa tcacgattct gtttctgctc atagcagagg gttcctctca gaattacaca 60gggaatcccg tgatatgcct gggacatcat gccgtatcca atgggacaat ggtgaaaacc 120ctgactgatg accaagtaga agttgtcact gcccaagaat tagtggaatc gcaacatcta 180ccggagttgt gtcctagccc tttaagatta gtagatggac aaacttgtga catcgtcaat 240ggtgccttgg ggagtccagg ctgtgatcac ttgaatggtg cagaatggga tgtcttcata 300gaacgaccca ctgctgtgga cacttgttat ccatttgatg tgccggatta ccagagccta 360cggagtatcc tagcaaacaa tgggaaattt gagttcattg ctgaggaatt ccaatggaac 420acagtcaaac aaaatgggaa atccggagca tgcaaaagag caaatgtgaa tgactttttc 480aacagattga actggctgac caaatctgat gggaatgcat acccacttca aaacctgaca 540aaggttaaca acggggacta tgcaagactt tacatatggg gagttcatca tccttcaact 600gacacagaac aaaccaactt gtataagaac aaccctggga gagtaactgt ttccaccaaa 660accagtcaaa caagtgtggt accaaacatt ggcagtagac catgggtaag aggccaaagc 720ggcaggatta gcttctattg gacaattgtg gagccaggag acctcatagt cttcaacacc 780atagggaatt taattgctcc gagaggtcat tacaagctta acagtcaaaa gaagagcaca 840attctgaata ctgcaattcc cataggatct tgtgttagta aatgtcacac agataggggt 900tcaatctcta caaccaaacc ctttcagaac atctcaagaa tatcaattgg ggactgtccc 960aagtatgtca aacagggatc cttgaaacta gctacaggaa tgaggaatat ccctgagaaa 1020gcaaccagag gcctgtttgg tgcaattg 1048151707DNAInfluenza virus A 15atggagaaaa tagtgcttct tcttgcaata gtcagtcttg ttaaaagtga tcagatttgc 60attggttacc atgcaaacaa ctcgacagag caggttgaca caataatgga aaagaacgtt 120actgttacac atgcccaaga catactggaa aagacacaca acgggaaact ctgcgatcta 180gatggagtga agcctctaat tttgagagat tgtagtgtag ctggatggct cctcggaaac 240cctatgtgtg acgaattcat caatgtgccg gaatggtctt acatagtgga gaaggccagt 300ccagccaatg acctctgtta cccaggggat ttcaacgact atgaagaact gaaacaccta 360ttgagcagaa taaaccactt tgagaaaatt cagatcatcc ccaaaagttc ttggtccaat 420catgaagcct catcaggggt gagcgcagca tgtccatacc atgggaagcc ctcctttttc 480agaaatgtgg tatggcttat caaaaagaac agtgcatacc caacaataaa gaggagctac 540aataatacca accaagaaga tcttttggta ctgtggggga ttcaccatcc taatgatgcg 600gcagagcaga caaagctcta tcaaaaccca accacctata tttccgttgg aacatcaaca 660ctaaaccaga gattggtccc aaaaatagct actagatcca aagtaaacgg gcaaagtgga 720agaatggagt tcttctggac aattttaaag ccgaatgatg ccataaattt cgagagtaat 780ggaaatttca ttgctccaga atatgcatac aaaattgtca agaaagggga ctcagcaatt 840atgaaaagtg aattggaata tggtaactgc aacaccaagt gtcaaactcc aatgggggcg 900ataaactcta gtatgccatt ccacaacata caccctctca caatcgggga atgccccaaa 960tatgtgaaat caaacagatt agtccttgcg actggactca gaaatacccc tcaaagagat 1020agaagaagaa aaaagagagg actatttgga gctatagcag gttttataga gggaggatgg 1080caaggaatgg tagatggttg gtatgggtac caccatagca atgagcaggg gagtggatac 1140gctgcagaca aagaatccac tcaaaaggca atagatggag tcaccaataa ggtcaactcg 1200atcattgaca aaatgaacac tcagtttgag gccgttggaa gggaatttaa taacttagaa 1260aggaggatag aaaatttaaa caagaagatg gaagacggat tcctagatgt ctggacttat 1320aatgctgaac ttctggttct catggaaaat gagagaactc tagactttca tgattcaaat 1380gtcaagaacc tttacaacaa ggtccgacta cagcttaggg ataatgcaaa ggagctgggt 1440aatggttgtt tcgagttcta tcacaaatgt gataatgaat gtatggaaag tgtaaaaaac 1500gggacgtatg actacccgca gtattcagaa gaagcaagac taaacagaga ggaaataagt 1560ggagtaaaat tggaatcaat gggaacttac caaatactgt caatttattc aacagtggcg 1620agttccctag cactggcaat catggtagct ggtctatctt tatggatgtg ctccaatggg 1680tcgttacaat gcagaatttg catttaa 1707161050DNAInfluenza virus A 16atgattgcaa tcattgtaat agcgatactg gcagcagccg gaaagtcaga caagatctgc 60attgggtatc atgccaacaa ttcaacaaca caggtggata cgatacttga gaagaatgta 120accgtcacac actcagttga attgctggag aatcagaagg aagaaagatt ctgcaagatc 180ttgaacaagg cccctctcga cctaaaggga tgcaccatag agggttggat cttggggaat 240ccccaatgcg atctgttgct tggtgaccaa agctggtcat atatagtgga aagacctact 300gcccaaaatg ggatatgcta cccaggagct ttgaatgagg tagaagaact gaaagcattt 360atcggatcag gagaaagggt agagagattt gagatgtttc ccaaaagcac atgggcaggg 420gtagacacca gcagtggggt aacaaaagct tgtccttata atagtggttc atctttctac 480agaaacctcc tatggataat aaagaccaag tcagcagcgt atccagtaat taagggaact 540tacagcaaca ctggaaacca gccaatcctc tatttctggg gtgtgcacca tcctcctgac 600accaatgagc aaaatactct gtatggctct ggcgatcggt atgttaggat gggaactgag 660agcatgaatt ttgccaagag cccagaaatt gcggcaagac ccgctgtgaa tggccaaaga 720ggtcgaattg attattactg gtctgtttta aaaccaggag aaaccttgaa tgtggaatct 780aatggaaatc taatcgctcc ttggtatgca tacaaatttg tcaacacaaa taataaggga 840gccgtcttca agtcaaattt accaatcgag aattgcgatg ccacatgcca gactattgca 900ggagtcctaa ggaccaataa aacatttcag aatgtgagcc ctctgtggat aggagaatgc 960cccaagtatg tgaaaagtga aagtctaagg cttgctactg gactaagaaa tgttccacag 1020attgaaacca gagggctttt cggagctatc 1050171698DNAInfluenza virus A 17atggaaaaat tcatcgcaat agcaaccttg gcgagcacaa atgcatacga taggatatgc 60attgggtacc aatcaaacaa ctccacagac acagtgaaca ctctcataga acagaatgta 120ccagtcaccc aaacaatgga gctcgtggaa acagagaaac atcccgctta ttgtaacact 180gatttaggtg ccccattgga actgcgagac tgcaagattg aggcagtaat ctatgggaac 240cccaagtgtg acatccatct gaaggatcaa ggttggtcat acatagtgga gaggcccagc 300gcaccagaag ggatgtgtta ccctggatct gtggaaaatc tagaagaact gaggtttgtc 360ttctccagtg ctgcatctta caagagaata agactatttg actattccag gtggaatgtg 420actagatctg gaacgagtaa agcatgcaat gcatcaacag gtggccaatc cttctatagg 480agcatcaatt ggttgaccaa aaaggaacca gacacttatg acttcaatga aggagcttat 540gttaataatg aagatggaga catcattttc ttatggggga tccatcatcc gccggacaca 600aaagagcaga caacactata taaaaatgca aacactttga gtagtgttac tactaacact 660ataaacagaa gctttcaacc aaatattggt cccagaccat tagtaagagg acagcaaggg 720aggatggatt actattgggg cattctgaaa agaggggaga ctctgaagat caggaccaac 780ggaaatttaa tcgcacctga atttggctat ctgctcaaag gtgaaagcta cggcagaata 840attcaaaatg aggatatacc catcgggaac tgtaacacaa aatgtcaaac atatgcggga 900gcaatcaata gcagcaaacc ctttcagaat gcaagtaggc attacatggg agaatgtccc 960aaatatgtga agaaggcaag cttgcgactt gcagttgggc ttaggaatac gccttctgtt 1020gaacccagag gactgtttgg agccattgct ggtttcattg aaggaggatg gtctggaatg 1080attgatgggt ggtatggatt tcatcacagc aattcagagg gaacaggaat ggcagctgac 1140cagaaatcaa cacaagaagc catcgataag atcaccaata aagtcaacaa tatagttgac 1200aagatgaaca gggagtttga agttgtgaat catgagttct ctgaagttga aaaaagaata 1260aacatgataa acgataaaat agatgaccaa attgaagatc tttgggctta caatgcagag 1320ctccttgtgc tcttagagaa ccagaaaacg ctagacgaac atgattccaa tgtcaaaaac 1380ctttttgatg aagtgaaaag gagactgtca gccaatgcaa tagatgctgg gaacggttgc 1440tttgacatac ttcacaaatg cgacaatgag tgtatggaaa ctataaagaa cggaacttac 1500gatcataagg aatatgaaga ggaggctaaa ctagaaagga gcaagataaa tggagtaaaa 1560ctagaagaga acaccactta caaaattctt agcatttaca gtacagtggc ggccagtctt 1620tgcttggcaa tcctgattgc tggaggttta atcctgggca tgcaaaatgg atcttgtaga 1680tgcatgttct gtatttga 1698181363DNAInfluenza virus A 18atggaaacag tatcactaat gactatacta ctagtagcaa cagcaagcaa tgcagacaaa 60atctgcatcg gccaccagtc aacaaactcc acagaaactg tggacacgct aacagaaacc 120aatgttcctg tgacacatgc caaagaattg ctccacacag agcacaatgg aatgctgtgt 180gcaacaaatc tgggacatcc cctaatctta gacacgtgca ctattgaagg actgatctat 240ggtaaccctt cttgtgactt gctgttggga ggaagagaat ggtcctacat cgtcgaaagg 300tcatcagctg taaatggaac gtgttaccct gggaatgtag agaacctaga ggaactcagg 360acacttttta gttccgctag ttcctaccga agaatccaaa tcttcccaga cacaatctgg 420aatgtgactt acactggaac aagcaaagca tgttcagatt cattctacag gagtatgaga 480tggctgactc aaaaaagcgg gtcttaccct gttcaagacg ctcaatacac aaataatatg 540ggaaagagca ttcttttcgt gtggggcata catcacccac ccactgaagc tgcacagaca 600aatttgtaca caagaaccga cacaacaaca agcgtgacaa cagaagactt aaataggatc 660ttcaaaccga tggtagggcc aaggcccctt gtcaatggtc tgcagggaag aattaattat 720tattggtcgg tactaaaacc aggccagaca ctgcgagtaa gatccaatgg gaatctaatt 780gctccatggt atggacacat tctttcggga gggagccatg gaagaatcct gaagactgat 840ttaaaaagta gtaattgcgt agtgcaatgt cagactgaaa aaggcggctt aaacagtaca 900ttgccgttcc acaatatcag taaatatgca tttggaaact gtcccaaata tgttagagtt 960aaaagtctca aactggcagt agggttgagg aacgtgcctg ctagatcaag tagaggacta 1020ttcggagcca tagctggatt catagaagga ggttggccag gactagtcgc tggttggtat 1080ggtttccagc attcaaatga tcaaggggtt ggtattgcgg cagataggga ttcaactcaa 1140aaggcaattg atagaataac aaccaaggtg aataatatag tcgacaaaat gaacaaacaa 1200tatgaaataa ttgatcatga attcagtgag gttgaaacta ggctcaacat gatcaataat 1260aagattgatg accaaataca agacatatgg gcatataatg cagagttgct agtactactt 1320gaaaaccaga aaacactcga tgagcatgac gcaaatgtga aga 1363191727DNAInfluenza virus A 19agcaaaagca ggggtcacaa tgtacaaagt agtagtaata attgcgctcc ttggagcagt 60gaaaggtctt gacagaatct gcctaggaca ccatgcggtt gccaatggaa ccattgtgaa 120gacccttaca aatgaacaag aggaagtgac caatgctact gagacggtag agagcacaaa 180tttgaataaa ttgtgtatga aaggaagaag ctacaaggac ttgggcaatt gtcacccggt 240aggaatgttg ataggaacac ctgtttgtga tccgcacttg accgggacct gggacactct 300cattgagcga gagaatgcca ttgcccactg ttatccaggg gcaaccataa atgaagaagc 360attgaggcag aaaataatgg aaagtggagg aatcagcaag atgagcactg gcttcactta 420tgggtcttcc atcacctcag ctgggaccac taaggcatgc atgagaaatg gaggagatag 480tttctatgca gagctcaaat ggctagtgtc aaagacaaag ggacaaaatt tccctcagac 540aacaaacacc tatcggaata cggacacagc agaacatctc ataatatggg gaattcatca 600cccttccagc acacaggaaa agaatgactt atacggaact cagtcactat ctatatcagt 660tgagagttct acatatcaga acaactttgt tccagttgtt ggggcaagac ctcaggtcaa 720tggacaaagt gggcgaattg actttcactg gacactagta cagccgggtg acaacataac 780cttctcagac aatggaggtc taatagcacc aagtcgagtt agcaaattaa ctggaaggga 840tttgggaatc caatcagaag cgttgataga caacagttgt gaatccaaat gcttttggag 900agggggttct ataaatacaa agctcccttt tcaaaatctg tcacccagaa cagtaggtca 960atgccccaaa tacgtaaatc agaggagttt actgcttgca acagggatga ggaatgtgcc 1020agaagtggtg cagggaaggg gtctgtttgg tgcaatagca gggttcatag aaaacggatg 1080ggaaggaatg gtagacggct ggtatggttt cagacaccaa aatgcccagg gcacaggcca 1140agctgctgat tacaagagta ctcaagcagc tattgaccaa atcacaggga aactgaacag 1200gttgattgag aagaccaaca ctgagtttga gtcaatagaa tctgaattca gtgagactga 1260gcatcaaatt ggtaacgtca ttaattggac caaagattca ataaccgaca tttggactta 1320caacgcagag ctattagtgg caatggagaa tcagcacaca attgacatgg ctgattcaga 1380gatgctaaat ctgtatgaaa gggtaagaaa gcaactcaga cagaatgcag aagaagacgg 1440aaagggatgt tttgagatat atcatacttg tgatgattcg tgcatggaga gtataaggaa 1500caatacttat gaccattcac aatacagaga ggaggctctt ctgaatagac tgaacatcaa 1560cccagtgaaa ctttcttcgg ggtacaaaga catcatactt tggtttagct tcggggaatc 1620atgctttgtt cttctagccg ttgttatggg tcttgttttc ttctgcctga aaaatggaaa 1680catgcgatgc acaatctgta tttagttaaa aacaccttgt ttctact 1727201698DNAInfluenza virus A 20atggagaaaa cactgctatt tgcagctatt ttcctttgtg tgaaagcaga tgagatctgt 60atcgggtatt taagcaacaa ctcgacagac aaagttgaca caataattga gaacaatgtc 120acggtcacta gctcagtgga actggttgag acagaacaca ctggatcatt ctgttcaatc 180aatggaaaac aaccaataag ccttggagat tgttcatttg ctggatggat attaggaaac 240cctatgtgtg atgaactaat tggaaagact tcatggtctt acattgtgga aaaacccaat 300ccaacaaatg gaatctgtta cccaggaact ttagagagtg aagaagaact aagactgaaa 360ttcagtggag ttttagaatt taacaaattc gaagtattca catcaaatgg atggggtgct 420gtaaattcag gagtaggagt aaccgctgca tgcaaattcg ggggttctaa ttctttcttt 480cgaaacatgg tatggctgat acaccaatca ggaacatatc ctgtaataaa gagaaccttt 540aacaacacca aagggagaga tgtactgatt gtttggggaa ttcatcatcc tgctacactg 600acagaacatc aagatctgta taaaaaggac agctcctatg tagcagtggg ttcagagacc 660tacaacagaa gattcactcc agaaatcaac actaggccca gagtcaatgg acaggccgga 720cggatgacat tctactggaa gatagtcaaa ccaggagaat caataacatt cgaatctaat 780ggggcgttcc tagctcctag atatgctttt gagattgtct ctgttggaaa tgggaaactg 840ttcaggagcg aactgaacat tgaatcatgc tctaccaaat gtcaaacaga aataggagga 900attaatacga acaaaagctt ccacaatgtt cacagaaaca ctatcgggga ttgccccaag 960tatgtgaatg tcaaatcctt aaagcttgca acaggaccta gaaatgtccc agcaatagca 1020tcgagaggct tgtttggagc aatagctgga ttcatagaag ggggatggcc tggactgatc 1080aatggatggt atgggttcca acacagggac gaagaaggaa caggcattgc agcagacaag 1140gagtcaactc aaaaggcaat agaccagata acatccaagg taaataacat cgttgacagg 1200atgaatacaa actttgagtc tgtgcaacac gaattcagtg aaatagagga aagaataaat 1260caattatcaa aacacgtaga tgattctgtg gttgacatct ggtcatataa tgcacagctt 1320ctcgttttac ttgaaaatga gaagacactg gacctccatg actcaaatgt caggaacctc 1380catgagaaag tcagaagaat gctaaaggac aatgccaaag atgaggggaa cggatgcttc 1440accttttacc ataagtgtga caataaatgc attgaacgag ttagaaacgg aacatatgat 1500cataaagaat tcgaggagga atcaaaaatc aatcgccagg agattgaagg ggtgaaacta 1560gattctagtg ggaatgtgta taaaatactg tcaatttaca gctgcattgc aagcagtctt 1620gtattggcag cactcatcat ggggttcatg ttttgggcat gcagtaatgg atcatgtaga 1680tgtaccattt gcatttag 1698211695DNAInfluenza virus A 21atggaaaaat tcatcatttt gagtactgtc ttggcagcaa gctttgcata tgacaaaatt 60tgcattggat accaaacaaa caactcgact gaaacggtaa acacactaag tgaacaaaac 120gttccggtga cgcaggtgga agaacttgta catcgtggga ttgatccgat cctgtgtgga 180acggaactag gatcaccact agtgcttgat gactgttcat tagagggtct aatcctaggc 240aatcccaaat gtgatcttta tttgaatggc agggaatggt catacatagt agagaggccc 300aaagagatgg aaggagtttg ctatccaggg tcaattgaaa accaggaaga gctaagatct 360ctgttttctt ccatcaaaaa atatgaaaga gtgaagatgt ttgatttcac caaatggaat 420gtcacataca ctgggaccag caaggcctgc aataatacat caaaccaagg ctcattctat 480aggagcatga gatggttgac cttaaaatca ggacaatttc cagtccaaac agatgagtac 540aagaacacca gagattcaga cattgtattc acctgggcca ttcaccaccc accaacatct 600gatgaacaag taaaattata caaaaatcct gatactctct cttcagtcac caccgtagaa 660atcaatagga gcttcaagcc taatataggg ccaagaccac tcgtgagagg acaacaaggg 720agaatggatt actactgggc tgttcttaaa cctggacaaa cagtcaaaat acaaaccaat 780ggtaatctta ttgcacctga atatggtcac ttaatcacag ggaaatcaca tggcaggata 840ctcaagaata atttgcccat gggacagtgt gtgactgaat gtcaattgaa cgagggtgta 900atgaacacaa gcaaaccttt ccagaacact agtaagcact atattgggaa atgccccaaa 960tacataccat cagggagttt aaaattggca atagggctca ggaatgtccc acaagttcaa 1020gatcgggggc tctttggagc aattgcaggt ttcatagaag gcggatggcc agggctagtg 1080gctggttggt acggatttca gcatcaaaat gcggagggga caggcatagc tgcagacaga 1140gacagcaccc aaagggcaat agacaatatg caaaacaaac tcaacaatgt catcgacaaa 1200atgaataaac aatttgaagt ggtgaatcat gagttttcag aagtggaaag cagaataaac 1260atgattaatt ccaaaattga tgatcagata actgacatat gggcatacaa tgctgaattg 1320cttgtcctat tggaaaatca gaagacatta gatgagcatg acgctaatgt aaggaatcta 1380catgatcggg tcagaagagt cctgagggaa aatgcaattg acacaggaga cggctgcttt 1440gagattttac ataaatgtga caacaattgt atggacacga ttagaaacgg gacatacaat 1500cacaaagagt atgaggaaga aagcaaaatc gaacgacaga aagtcaatgg tgtgaaactt 1560gaggagaatt ctacatataa aattctgagc atctacagca gtgttgcctc aagcttagtt 1620ctactgctca tgattattgg gggtttcatt ttcgggtgtc aaaatggaaa tgttcgttgt 1680actttctgta tttaa 1695221701DNAInfluenza virus A 22atggctctaa atgtcattgc aactttgaca cttataagtg tatgtgtaca tgcagacaga 60atatgcgtgg ggtatctgag caccaattca tcagaaaggg tcgacacgct ccttgaaaat 120ggggtcccag tcaccagctc cattgatctg attgagacaa accacacagg aacatactgt 180tctctaaatg gagtcagtcc agtgcatttg ggagattgca gctttgaagg atggattgta 240ggaaacccag cctgcaccag caactttggg atcagagagt ggtcatacct gattgaggac 300cccgcggccc ctcatgggct ttgctaccct ggagaattaa acaacaatgg tgaactcaga

360cacttgttca gtggaatcag gtcattcagt agaacggaat tgatcccacc tacctcctgg 420ggggaagtac ttgacggtac aacatctgct tgcagagata acacgggaac caacagcttc 480tatcgaaatt tagtttggtt tataaagaag aatactagat atccagttat cagtaagacc 540tacaacaata caacgggaag ggatgtttta gttttatggg gaatacatca cccagtgtct 600gtggatgaga caaagactct gtatgtcaat agtgatccat acacactggt ttccaccaag 660tcttggagcg agaaatataa actagaaacg ggagtccgac ctggctataa tggacagagg 720agctggatga aaatttattg gtctttgata catccagggg agatgattac tttcgagagt 780aatggtggat ttttagcccc aagatatggg tacataattg aagaatatgg aaaaggaagg 840attttccaga gtcgcatcag aatgtctagg tgcaacacca agtgccagac ttcggttgga 900gggataaaca caaacagaac gttccaaaac atcgataaga atgctcttgg tgactgtccc 960aaatacataa agtctggcca actcaagcta gccactggac tcagaaatgt gccagctata 1020tcgaatagag gattgttcgg agcaattgca gggttcatag aaggaggctg gccaggttta 1080atcaatggtt ggtacggttt tcagcatcaa aatgaacagg gaacaggaat agctgcagac 1140aaagaatcaa cacagaaagc tatagaccag ataacaacca aaataaataa cattattgat 1200aaaatgaatg ggaactatga ttcaattagg ggtgaattca atcaagttga gaagcgtata 1260aacatgcttg cagacagaat agatgatgcc gtgacggaca tttggtcata caatgccaaa 1320cttcttgtat tgctggaaaa tgataaaact ttagatatgc atgatgctaa tgtaaagaat 1380ttacatgagc aagtacgaag agaattgaag gacaatgcaa ttgacgaagg aaatggctgt 1440tttgaactcc ttcataaatg caatgactcc tgcatggaaa ctataagaaa tggaacgtat 1500gaccacactg agtatgcaga ggagtcaaag ttaaagaggc aagaaatcga tgggatcaaa 1560ctcaaatcag aagacaacgt ttacaaagca ttatcaatat acagttgcat tgcaagtagt 1620gttgtactag taggactcat actctctttc atcatgtggg cctgtagtag tgggaattgc 1680cgattcaatg tttgtatata a 1701231749DNAInfluenza virus A 23agcaaaagca ggggaaaatg attgcactca tattggttgc actggctctg agccacactg 60cttattctca gatcacaaat gggacaacag gaaaccccat tatatgcttg gggcatcatg 120cagtggaaaa cggcacatct gttaaaacac taacagacaa tcacgtagaa gttgtgtcag 180ctaaagaatt agttgagacg aaccacactg atgaactgtg cccaagcccc ttgaagcttg 240tcgacgggca agactgccac ctcatcaatg gtgcattggg gagtccaggc tgtgaccgtt 300tgcaggacac cacttgggat gtcttcattg aaaggcccac tgcagtagac acatgttatc 360cattcgacgt cccagattac cagagtctca gaagcatcct agcaagcagt gggagtttgg 420agttcatcgc cgaacaattc acctggaatg gtgtcaaagt tgacggatca agcagtgctt 480gtttgagggg cggtcgcaac agcttcttct cccgactaaa ctggctaacc aaagcaacaa 540atggaaacta tggacctatt aacgtcacta aagaaaatac gggctcttat gtcaggctct 600atctctgggg agtgcatcac ccatcaagcg ataatgagca aacggatctc tacaaggtgg 660caacagggag agtaacagta tctacccgct cggaccaaat cagtattgtt cccaatatag 720gaagtagacc gagggtaagg aatcagagcg gcaggataag catctactgg accctagtaa 780acccagggga ctccatcatt ttcaacagta ttgggaattt gattgcacca agaggccact 840acaaaataag caaatctact aagagcacag tgcttaaaag tgacaaaagg attgggtcat 900gcacaagccc ttgcttaact gataaaggtt cgatccaaag tgacaaacct tttcagaatg 960tatcaaggat tgctatagga aactgcccga aatatgtaaa gcaagggtcc ctgatgttag 1020caactggaat gcgcaacatc cctggcaaac aggcaaaggg cttatttggg gcaattgctg 1080gattcattga aaatggttgg caaggcctga ttgatgggtg gtatggattc aggcaccaaa 1140atgctgaagg aacaggaact gctgcagacc tgaagtcaac tcaggcagcc attgatcaga 1200taaatggcaa gctgaacaga ttgatagaga agacaaatga aaaatatcac caaatagaaa 1260aggaattcga acaggtggaa ggaagaatac aagaccttga gaagtacgtt gaggacacta 1320agattgattt gtggtcatac aatgctgaat tgctagtagc actagagaat cagcacacaa 1380tagatgtcac agactccgaa atgaacaagc tttttgaaag agtaagaagg caattaagag 1440agaatgcaga agatcaaggc aacggttgtt tcgagatatt ccatcagtgt gacaacaatt 1500gtatagaaag cattagaaac ggaacttatg accacaacat ctacagggat gaagccatca 1560acaatcgaat caaaataaat cctgtcactt tgacgatggg gtacaaggac ataatcctgt 1620ggatttcttt ctccatgtca tgctttgtct tcgtggcact gattctggga tttgttctat 1680gggcttgtca aaacgggaat atccgatgcc aaatctgtat ataaagaaaa aacacccttg 1740tttctactc 1749241762DNAInfluenza virus A 24agcaaaagca ggggatacaa aatgaacact caaatcatcg tcattctagt cctcggactg 60tcgatggtga gatctgacaa gatttgtctc gggcaccatg ccgtagcaaa tgggacaaaa 120gtcaacacac taactgagaa aggagtggaa gtggtcaatg ccacggagac agtggagatt 180acaggaataa ataaagtgtg cacaaaaggg aagaaagcgg tggacttggg atcttgtgga 240atactgggaa ctatcattgg gcctccacaa tgtgactctc atcttaaatt caaagctgat 300ctgataatag aaagaagaaa ttcaagtgac atctgttacc cagggaaatt cactaatgag 360gaagcactga gacaaataat cagagaatct ggtggaattg acaaagagcc aatgggattt 420agatattcag gaataaaaac agacggggca accagtgcgt gtaagagaac agtgtcctct 480ttctactcag aaatgaaatg gcttttatcc agcaaggcta accaggtgtt cccacaactg 540aatcagacat acaggaacaa cagaaaagaa ccagccctaa ttgtttgggg agtacatcat 600tcaagttcct tggatgagca aaataagcta tatggagctg ggaacaagct gataacagta 660ggaagctcaa aataccaaca atcgttttca ccaagtccag gggacaggcc caaagtgaat 720ggtcaggccg ggaggatcga ctttcattgg atgctattgg acccagggga tacagtcact 780tttaccttca atggtgcatt catagcccca gatagagcca cctttctccg ctctaatgcc 840ccatcgggag ttgagtacaa tgggaagtca ctgggaatac agagtgatgc acaaattgat 900gaatcatgtg aaggggaatg cttctacagt ggagggacaa taaacagccc tttgccattt 960caaaacatcg atagttgggc tgtcggaagg tgccccagat atgtaaagca atcaagcctg 1020ccgctggcct taggaatgaa aaatgtacca gagaaaatac atactagggg actgttcggt 1080gcaattgcag gattcatcga gaatggatgg gaaggactca ttgatggatg gtatggattt 1140aggcatcaaa atgcacaggg gcagggaaca gctgctgact acaagagtac tcaggctgca 1200attgaccaga taacagggaa acttaataga ttaattgaaa aaaccaacac acagtttgaa 1260ctcatagaca atgagttcac tgaagtggag cagcagatag gcaatgtaat aaactggaca 1320agggactcct tgactgagat ctggtcatac aatgctgaac ttctagtagc aatggaaaat 1380cagcatacaa ttgaccttgc agattctgaa atgaacaaac tctatgagag agtgagaaga 1440cagctaaggg agaatgccga ggaggatgga actggatgtt ttgagatttt ccaccgatgt 1500gacgatcaat gtatggagag catacgaaat aatacttaca atcacactga atatcgacag 1560gaagccttac agaataggat aatgatcaat ccggtaaagc ttagtggtgg gtacaaagat 1620gtgatactat ggtttagctt cggggcatca tgtgtaatgc ttctagccat tgctatgggt 1680cttattttca tgtgtgtgaa aaacgggaat ctgcggtgca ctatctgtat ataattattt 1740gaaaaacacc cttgtttcta ct 1762251760DNAInfluenza virus A 25agcaaaagca ggggatattg tcaaaacaac agaatggtga tcaaagtgct ctactttctc 60atcgtattgt taagtaggta ttcgaaagca gacaaaatat gcataggata tctaagcaac 120aacgccacag acacagtaga cacactgaca gagaacggag ttccagtgac cagctcagtt 180gatctcgttg aaacaaacca cacaggaaca tactgctcac tgaatggaat cagcccaatt 240catcttggtg actgcagctt tgagggatgg atcgtaggaa acccttcctg tgccaccaac 300atcaacatca gagagtggtc gtatctaatt gaggacccca atgcccccaa caaactctgc 360ttcccaggag agttagataa taatggagaa ttacgacatc tcttcagcgg agtgaactct 420tttagcagaa cagaattaat aagtcccaac aaatggggag acattctgga tggagtcacc 480gcttcttgcc gcgataatgg ggcaagcagt ttttacagaa atttggtctg gatagtgaag 540aataaaaatg gaaaataccc tgtcataaag ggggattaca ataacacaac aggcagagat 600gttctagtac tctggggcat tcaccatccg gatacagaaa caacagccat aaacttgtac 660gcaagcaaaa acccctacac attagtatca acaaaggaat ggagcaaaag atatgaacta 720gaaattggca ccagaatagg tgatggacag agaagttgga tgaaactata ttggcacctc 780atgcgccctg gagagaggat aatgtttgaa agcaacgggg gccttatagc gcccagatac 840ggatacatca ttgagaagta cggtacagga cgaattttcc aaagtggagt gagaatggcc 900aaatgcaaca caaagtgtca aacatcatta ggtgggataa acaccaacaa aactttccaa 960aacatagaga gaaatgctct tggagattgc ccaaagtaca taaagtctgg acagctgaag 1020cttgcaactg ggctgagaaa tgtcccatcc gttggtgaaa gaggtttgtt tggtgcaatt 1080gcaggcttca tagaaggagg gtggcctggg ctaattaatg gatggtatgg tttccagcat 1140cagaatgaac aggggactgg cattgctgca gacaaagcct ccactcagaa agcgatagat 1200gaaataacaa caaaaattaa caatataata gagaagatga acggaaacta tgattcaata 1260agaggggaat tcaatcaagt agaaaagagg atcaacatgc tcgctgatcg agttgatgat 1320gcagtaactg acatatggtc gtacaatgct aaacttcttg tactgcttga aaatgggaga 1380acattggact tacacgacgc aaatgtcagg aacttacacg atcaggtcaa gagaatattg 1440aaaagtaatg ctattgatga aggagatggt tgcttcaatc ttcttcacaa atgtaatgac 1500tcatgcatgg aaactattag aaatgggacc tacaatcatg aagattacag ggaagaatca 1560caactgaaaa ggcaggaaat tgagggaata aaattgaagt ctgaagacaa tgtgtataaa 1620gtactgtcga tttatagctg cattgcaagc agtattgtgc tggtaggtct catacttgcg 1680ttcataatgt gggcatgcag caatggaaat tgccggttta atgtttgtat atagtcggaa 1740aaaataccct tgtttctact 1760261882DNAInfluenza virus B 26agcagaagcg ttgcattttc taatatccac aaaatgaagg caataattgt actactcatg 60gtagtaacat ccaatgcaga tcgaatctgc actgggataa catcgtcaaa ctcacctcat 120gtggttaaaa ctgccactca aggggaagtc aatgtgactg gtgtgatacc actaacaaca 180acacctacca aatctcattt tgcaaatctc aaaggaacac agaccagagg aaaactatgc 240ccaaactgtt ttaactgcac agatctggac gtggccctag gcagaccaaa atgcatgggg 300aacacaccct ccgcaaaagt ctcaatactc catgaagtca aacctgctac atctggatgc 360tttcctataa tgcacgacag aacaaaaatc agacaactac ctaatcttct cagaggatat 420gaaaacatca ggttatcaac cagtaatgtt atcaatacag agacggcacc aggaggaccc 480tacaaggtgg ggacctcagg atcttgccct aacgttgcta atgggaacgg cttcttcaac 540acaatggctt gggttatccc aaaagacaac aacaagacag caataaatcc agtaacagta 600gaagtaccat acatttgttc agaaggggaa gaccaaatta ctgtttgggg gttccactct 660gatgacaaaa cccaaatgga aagactctat ggagactcaa atcctcaaaa gttcacctca 720tctgccaatg gagtaaccac acattatgtt tctcagattg gtggcttccc aaatcaaaca 780gaagacgaag ggctaaaaca aagcggcaga attgttgttg attacatggt acaaaaacct 840ggaaaaacag gaacaattgt ttatcaaaga ggcattttat tgcctcaaaa agtgtggtgc 900gcaagtggca ggagcaaggt aataaaaggg tccttgcctt taattggtga agcagattgc 960ctccacgaaa agtacggtgg attaaataaa agcaagcctt actacacagg agagcatgca 1020aaggccatag gaaattgccc aatatgggtg aaaacaccct tgaagctggc caatggaacc 1080aaatatagac cgcctgcaaa actattaaag gaaagaggtt tcttcggagc tattgctggt 1140ttcttggaag gaggatggga aggaatgatt gcaggttggc acggatacac atctcatgga 1200gcacatggag tggcagtggc agcagacctt aagagtacac aagaagctat aaacaagata 1260acaaaaaatc tcaactattt aagtgagcta gaagtaaaaa accttcaaag actaagcgga 1320gcaatgaatg agcttcacga cgaaatactc gagctagacg aaaaagtgga tgatctaaga 1380gctgatacaa taagctcaca aatagagctt gcagtcttgc tttccaacga agggataata 1440aacagtgaag atgagcatct cttggcactt gaaagaaaac tgaagaaaat gcttggcccc 1500tctgctgtag aaatagggaa tgggtgcttt gaaaccaaac acaaatgcaa ccagacttgc 1560ctagacagga tagctgctgg cacctttaat gcaggagatt tttctcttcc cacttttgat 1620tcattaaaca ttactgctgc atctttaaat gatgatggct tggataatca tactatactg 1680ctctactact caactgctgc ttctagcttg gctgtaacat taatgatagc tatcttcatt 1740gtctacatgg tctccagaga caatgtttct tgttccatct gtctgtgagg gagattaagc 1800cctgtgtttt cctttactgt agtgctcatt tgcttgtcac cattacaaag aaacgttatt 1860gaaaaatgct cttgttacta ct 1882272073DNAInfluenza virus C 27agcagaagca gggggttaat aatgtttttc tcattactct tggtgttggg cctcacagag 60gctgaaaaaa taaagatatg ccttcaaaag caagtgaaca gtagcttcag cctacacaat 120ggcttcggag gaaatttgta tgccacagaa gaaaaaagaa tgtttgagct tgttaagccc 180aaagctggag cctctgtctt gaatcaaagt acatggattg gctttggaga ttcaaggact 240gacaaaagca attcagcttt tcctaggtct gctgatgttt cagcaaaaac tgctgataag 300tttcgttttt tgtctggtgg atccttaatg ttgagtatgt ttggcccacc tgggaaggta 360gactaccttt accaaggatg tggaaaacat aaagtttttt atgaaggagt taactggagt 420ccacatgctg ctataaattg ttacagaaaa aattggactg atatcaaact gaatttccag 480aaaaacattt atgaattggc ttcacaatca cattgcatga gcttggtgaa tgccttggac 540aaaactattc ctttacaagt gactgctggg actgcaggaa attgcaacaa cagcttctta 600aaaaatccag cattgtacac acaagaagtc aagccttcag aaaacaaatg tgggaaagaa 660aatcttgctt tcttcacact tccaacccaa tttggaacct atgagtgcaa actgcatctt 720gtggcttctt gctatttcat ctatgatagt aaagaagtgt acaataaaag aggatgtgac 780aactactttc aagtgatcta tgattcattt ggaaaagtcg ttggaggact agataacagg 840gtatcacctt acacagggaa ttctggagac accccaacaa tgcaatgtga catgctccag 900ctgaaacctg gaagatattc agtaagaagc tctccaagat tccttttaat gcctgaaaga 960agttattgct ttgacatgaa agaaaaagga ccagtcactg ctgtccaatc catttgggga 1020aaaggcagag aatctgacta tgcagtggat caagcttgct tgagcactcc agggtgcatg 1080ttgatccaaa agcaaaagcc atacattgga gaagctgatg atcaccatgg agatcaagaa 1140atgagggagt tgctgtcagg actggactat gaagctagat gcatatcaca atcagggtgg 1200gtgaatgaaa ccagtccttt tacggagaaa tacctccttc ctcccaaatt tggaagatgc 1260cctttggctg caaaggaaga atccattcca aaaatcccag atggccttct aattcccacc 1320agtggaaccg ataccactgt aaccaaacct aagagcagaa tttttggaat cgatgacctc 1380attattggtg tgctctttgt tgcaatcgtt gaaacaggaa ttggaggcta tctgcttgga 1440agtagaaaag aatcaggagg aggtgtgaca aaagaatcag ctgaaaaagg gtttgagaaa 1500attggaaatg acatacaaat tttaaaatct tctataaata tcgcaataga aaaactaaat 1560gacagaattt ctcatgatga gcaagccatc agagatctaa ctttagaaat tgaaaatgca 1620agatctgaag ctttattggg agaattggga ataataagag ccttattggt aggaaatata 1680agcataggat tacaggaatc tttatgggaa ctagcttcag aaataacaaa tagagcagga 1740gatctagcag ttgaagtctc cccaggttgc tggataattg acaataacat ttgtgatcaa 1800agctgtcaaa attttatttt caagttcaac gaaactgcac ctgttccaac cattccccct 1860cttgacacaa aaattgatct gcaatcagat cctttttact ggggaagcag cttgggctta 1920gcaataactg ctactatttc attggcagct ttggtgatct ctgggatcgc catctgcaga 1980actaaatgat tgagacaatt ttgaaaaatg gataatgtgt tggtcaatat tttgtacagt 2040tttataaaaa acaaaaatcc ccttgctact gct 2073281670DNAInfluenza virus A 28agatcttcgc tgacacaata tgtataggct accatgccaa caactcaacc gacactgttg 60acacagtact tgagaagaat gtgacagtga cacactctgt caacctactt gaggacagtc 120acaatggaaa actatgtcta ctaaaaggaa tagccccact acaattgggt aattgcagcg 180ttgccggatg gatcttagga aacccagaat gcgaattact gatttccaag gaatcatggt 240cctacattgt agaaacacca aatcctgaga atggaacatg ttacccaggg tatttcgccg 300actatgagga actgagggag caattgagtt cagtatcttc atttgagaga ttcgaaatat 360tccccaaaga aagctcatgg cccaaccaca ccgtaaccgg agtatcagca tcatgctccc 420ataatgggaa aagcagtttt tacagaaatt tgctatggct gacggggaag aatggtttgt 480acccaaacct gagcaagtcc tatgtaaaca acaaagagaa agaagtcctt gtactatggg 540gtgttcatca cccgcctaac atagggaacc aaagggcact ctatcataca gaaaatgctt 600atgtctctgt agtgtcttca cattatagca gaagattcac cccagaaata gccaaaagac 660ccaaagtaag agatcaggaa ggaagaatca actactactg gactctgctg gaacctgggg 720atacaataat atttgaggca aatggaaatc taatagcgcc atggtatgct tttgcactga 780gtagaggctt tggatcagga atcatcacct caaatgcacc aatggatgaa tgtgatgcga 840agtgtcaaac acctcaggga gctataaaca gcagtcttcc tttccagaat gtacacccag 900tcacaatagg agagtgtcca aagtatgtca ggagtgcaaa attaaggatg gttacaggac 960taaggaacat cccatccatt caatccagag gtttgtttgg agccattgcc ggtttcattg 1020aaggggggtg gactggaatg gtagatgggt ggtatggtta tcatcatcag aatgagcaag 1080gatctggcta tgctgcagat caaaaaagta cacaaaatgc cattaacggg attacaaaca 1140aggtcaattc tgtaattgag aaaatgaaca ctcaattcac agctgtgggc aaagagttca 1200acaaattgga aagaaggatg gaaaacttaa ataaaaaagt tgatgatggg tttctagaca 1260tttggacata taatgcagaa ttgttggttc tactggaaaa tgaaaggact ttggatttcc 1320atgactccaa tgtgaagaat ctgtatgaga aagtaaaaag ccaattaaag aataatgcca 1380aagaaatagg aaacgggtgt tttgagttct atcacaagtg taacaatgaa tgcatggaga 1440gtgtgaaaaa tggtacctat gactatccaa aatattccga agaatcaaag ttaaacaggg 1500agaaaattga tggagtgaaa ttggaatcaa tgggagtata ccagattctg gcgatctact 1560caactgtcgc cagttccctg gttcttttgg tctccctggg ggcaatcagc ttctggatgt 1620gttccaatgg gtctttgcag tgtagaatat gcatctaaga gctcaggcct 16702932DNAArtificial sequenceXmaI-pPlas.c primer 29agttccccgg gctggtatat ttatatgttg tc 323046DNAArtificial sequenceSacI-ATG-pPlas.r 30aatagagctc cattttctct caagatgatt aattaattaa ttagtc 463146DNAArtificial sequenceSacI-PlasTer.c 31aatagagctc gttaaaatgc ttcttcgtct cctatttata atatgg 463248DNAArtificial sequenceEcoRI-PlasTer.r 32ttacgaattc tccttcctaa ttggtgtact atcatttatc aaagggga 48331711DNAInfluenza virus A 33atgaaagcaa aactactggt cctgttatgt acatttacag ctacatatgc agacacaata 60tgtataggct accatgccaa caactcaacc gacactgttg acacagtact tgagaagaat 120gtgacagtga cacactctgt caacctactt gaggacagtc acaatggaaa actatgtcta 180ctaaaaggaa tagccccact acaattgggt aattgcagcg ttgccggatg gatcttagga 240aacccagaat gcgaattact gatttccaag gaatcatggt cctacattgt agaaacacca 300aatcctgaga atggaacatg ttacccaggg tatttcgccg actatgagga actgagggag 360caattgagtt cagtatcttc atttgagaga ttcgaaatat tccccaaaga aagctcatgg 420cccaaccaca ccgtaaccgg agtatcagca tcatgctccc ataatgggaa aagcagtttt 480tacagaaatt tgctatggct gacggggaag aatggtttgt acccaaacct gagcaagtcc 540tatgtaaaca acaaagagaa agaagtcctt gtactatggg gtgttcatca cccgcctaac 600atagggaacc aaagggccct ctatcataca gaaaatgctt atgtctctgt agtgtcttca 660cattatagca gaagattcac cccagaaata gccaaaagac ccaaagtaag agatcaggaa 720ggaagaatca actactactg gactctgctg gaacctgggg atacaataat atttgaggca 780aatggaaatc taatagcgcc atggtatgct tttgcactga gtagaggctt tggatcagga 840atcatcacct caaatgcacc aatggatgaa tgtgatgcga agtgtcaaac acctcaggga 900gctataaaca gcagtcttcc tttccagaat gtacacccag tcacaatagg agagtgtcca 960aagtatgtca ggagtgcaaa attaaggatg gttacaggac taaggaacat cccatccatt 1020caatccagag gtttgtttgg agccattgcc ggtttcattg aaggggggtg gactggaatg 1080gtagatgggt ggtatggtta tcatcatcag aatgagcaag gatctggcta tgctgcagat 1140caaaaaagta cacaaaatgc cattaacggg attacaaaca aggtgaattc tgtaattgag 1200aaaatgaaca ctcaattcac agctgtgggc aaagaattca acaaattgga aagaaggatg 1260gaaaacttaa ataaaaaagt tgatgatggg tttctagaca tttggacata taatgcagaa 1320ttgttggttc tactggaaaa tgaaaggact ttggatttcc atgactccaa tgtgaagaat 1380ctgtatgaga aagtaaaaag ccaattaaag aataatgcca aagaaatagg aaacgggtgt 1440tttgaattct atcacaagtg taacaatgaa tgcatggaga gtgtgaaaaa tggaacttat 1500gactatccaa aatattccga agaatcaaag ttaaacaggg agaaaattga tggagtgaaa 1560ttggaatcaa tgggagtcta tcagattctg gcgatctact caactgtcgc cagttccctg 1620gttcttttgg tctccctggg ggcaatcagc ttctggatgt gttccaatgg gtctttgcag 1680tgtagaatat gcatctgaga ccagaatttc a 1711341781DNAMedicago sativa 34ccaaatcctt aacattcttt caacaccaac aatggcgaaa aacgttgcga ttttcggttt 60attgttttct cttcttctgt tggttccttc tcagatcttc gctgaggaat catcaactga 120cgctaaggaa tttgttctta cattggataa cactaatttc catgacactg ttaagaagca 180cgatttcatc gtcgttgaat

tctacgcacc ttggtgtgga cactgtaaga agctagcccc 240agagtatgag aaggctgctt ctatcttgag cactcacgag ccaccagttg ttttggctaa 300agttgatgcc aatgaggagc acaacaaaga cctcgcatcg gaaaatgatg ttaagggatt 360cccaaccatt aagattttta ggaatggtgg aaagaacatt caagaataca aaggtccccg 420tgaagctgaa ggtattgttg agtatttgaa aaaacaaagt ggccctgcat ccacagaaat 480taaatctgct gatgatgcga ccgcttttgt tggtgacaac aaagttgtta ttgtcggagt 540tttccctaaa ttttctggtg aggagtacga taacttcatt gcattagcag agaagttgcg 600ttctgactat gactttgctc acactttgaa tgccaaacac cttccaaagg gagactcatc 660agtgtctggg cctgtggtta ggttatttaa gccatttgac gagctctttg ttgactcaaa 720ggatttcaat gtagaagctc tagagaaatt cattgaagaa tccagtaccc caattgtgac 780tgtcttcaac aatgagccta gcaatcaccc ttttgttgtc aaattcttta actctcccaa 840cgcaaaggct atgttgttca tcaactttac taccgaaggt gctgaatctt tcaaaacaaa 900ataccatgaa gtggctgagc aatacaaaca acagggagtt agctttcttg ttggagatgt 960tgagtctagt caaggtgcct tccagtattt tggactgaag gaagaacaag tacctctaat 1020tattattcag cataatgatg gcaagaagtt tttcaaaccc aatttggaac ttgatcaact 1080cccaacttgg ttgaaggcat acaaggatgg caaggttgaa ccatttgtca agtctgaacc 1140tattcctgaa actaacaacg agcctgttaa agtggtggtt gggcaaactc ttgaggacgt 1200tgttttcaag tctgggaaga atgttttgat agagttttat gctccttggt gtggtcactg 1260caagcagttg gctccaatct tggatgaagt tgctgtctca ttccaaagcg atgctgatgt 1320tgttattgca aaactggatg caactgccaa cgatatccca accgacacct ttgatgtcca 1380aggctatcca accttgtact tcaggtcagc aagtggaaaa ctatcacaat acgacggtgg 1440taggacaaag gaagacatca tagaattcat tgaaaagaac aaggataaaa ctggtgctgc 1500tcatcaagaa gtagaacaac caaaagctgc tgctcagcca gaagcagaac aaccaaaaga 1560tgagctttga aaagttccgc ttggaggata tcggcacaca gtcatctgcg ggctttacaa 1620ctcttttgta tctcagaatc agaagttagg aaatcttagt gccaatctat ctatttttgc 1680gtttcatttt atctttttgg tttactctaa tgtattactg aataatgtga gttttggcgg 1740agtttagtac tggaactttt gtttctgtaa aaaaaaaaaa a 1781351027DNAInfluenza virus A 35agcgaaagca ggtagatatt gaaagatgag tcttctaacc gaggtcgaaa cgtacgttct 60ctctatcatc ccgtcaggcc ccctcaaagc cgagatcgca cagagacttg aagatgtctt 120tgcagggaag aacaccgatc ttgaggttct catggaatgg ctaaagacaa gaccaatcct 180gtcacctctg actaagggga ttttaggatt tgtgttcacg ctcaccgtgc ccagtgagcg 240aggactgcag cgtagacgct ttgtccaaaa tgcccttaat gggaacgggg atccaaataa 300catggacaaa gcagttaaac tgtataggaa gctcaagagg gagataacat tccatggggc 360caaagaaatc tcactcagtt attctgctgg tgcacttgcc agttgtatgg gcctcatata 420caacaggatg ggggctgtga ccactgaagt ggcatttggc ctggtatgtg caacctgtga 480acagattgct gactcccagc atcggtctca taggcaaatg gtgacaacaa ccaacccact 540aatcagacat gagaacagaa tggttttagc cagcactaca gctaaggcta tggagcaaat 600ggctggatcg agtgagcaag cagcagaggc catggaggtt gctagtcagg ctaggcaaat 660ggtgcaagcg atgagaacca ttgggactca tcctagctcc agtgctggtc tgaaaaatga 720tcttcttgaa aatttgcagg cctatcagaa acgaatgggg gtgcagatgc aacggttcaa 780gtgatcctct cgctattgcc gcaaatatca ttgggatctt gcacttgata ttgtggattc 840ttgatcgtct ttttttcaaa tgcatttacc gtcgctttaa atacggactg aaaggagggc 900cttctacgga aggagtgcca aagtctatga gggaagaata tcgaaaggaa cagcagagtg 960ctgtggatgc tgacgatggt cattttgtca gcatagagct ggagtaaaaa actaccttgt 1020ttctact 1027361788DNAArtificial sequenceclone 774 of A/Brisbane/59/2007 36cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatgaaa gtaaaactac tggtcctgtt atgcacattt 120acagctacat atgcagacac aatatgtata ggctaccatg ctaacaactc gaccgacact 180gttgacacag tacttgaaaa gaatgtgaca gtgacacact ctgtcaacct gcttgagaac 240agtcacaatg gaaaactatg tctattaaaa ggaatagccc cactacaatt gggtaattgc 300agcgttgccg ggtggatctt aggaaaccca gaatgcgaat tactgatttc caaggagtca 360tggtcctaca ttgtagaaaa accaaatcct gagaatggaa catgttaccc agggcatttc 420gctgactatg aggaactgag ggagcaattg agttcagtat cttcatttga gaggttcgaa 480atattcccca aagaaagctc atggcccaac cacaccgtaa ccggagtgtc agcatcatgc 540tcccataatg gggaaagcag tttttacaga aatttgctat ggctgacggg gaagaatggt 600ttgtacccaa acctgagcaa gtcctatgca aacaacaaag aaaaagaagt ccttgtacta 660tggggtgttc atcacccgcc aaacataggt gaccaaaagg ccctctatca tacagaaaat 720gcttatgtct ctgtagtgtc ttcacattat agcagaaaat tcaccccaga aatagccaaa 780agacccaaag taagagatca agaaggaaga atcaattact actggactct gcttgaaccc 840ggggatacaa taatatttga ggcaaatgga aatctaatag cgccaagata tgctttcgca 900ctgagtagag gctttggatc aggaatcatc aactcaaatg caccaatgga taaatgtgat 960gcgaagtgcc aaacacctca gggagctata aacagcagtc ttcctttcca gaacgtacac 1020ccagtcacaa taggagagtg tccaaagtat gtcaggagtg caaaattaag gatggttaca 1080ggactaagga acatcccatc cattcaatcc agaggtttgt ttggagccat tgccggtttc 1140attgaagggg ggtggactgg aatggtagat ggttggtatg gttatcatca tcagaatgag 1200caaggatctg gctatgctgc agatcaaaaa agcacacaaa atgccattaa tgggattaca 1260aacaaggtca attctgtaat tgagaaaatg aacactcaat tcacagcagt gggcaaagag 1320ttcaacaaat tggaaagaag gatggaaaac ttgaataaaa aagttgatga tgggtttata 1380gacatttgga catataatgc agaactgttg gttctactgg aaaatgaaag gactttggat 1440ttccatgact ccaatgtgaa gaatctgtat gagaaagtaa aaagccagtt aaagaataat 1500gctaaagaaa taggaaatgg gtgttttgag ttctatcaca agtgtaacga tgaatgcatg 1560gagagtgtaa agaatggaac ttatgactat ccaaaatatt ccgaagaatc aaagttaaac 1620agggagaaaa ttgatggagt gaaattggaa tcaatgggag tctatcagat tctggcgatc 1680tactcaacag tcgccagttc tctggttctt ttggtctccc tgggggcaat cagcttctgg 1740atgtgttcca atgggtcttt acagtgtaga atatgcatct aagagctc 1788371788DNAArtificial sequenceclone 775 of A/Solomon Islands 3/2006 37cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatgaaa gtaaaactac tggtcctgtt atgcacattt 120acagctacat atgcagacac aatatgtata ggctaccatg ccaacaactc aaccgacact 180gttgacacag tacttgagaa gaatgtgaca gtgacacact ctgtcaacct gcttgaggac 240agtcacaatg gaaaattatg tctattaaaa ggaatagccc cactacaatt gggtaattgc 300agcgttgccg gatggatctt aggaaaccca gaatgcgaat tactgatttc cagggaatca 360tggtcctaca ttgtagaaaa accaaatcct gagaatggaa catgttaccc agggcatttc 420gccgactatg aggaactgag ggagcaattg agttcagtat cttcatttga gagattcgaa 480atattcccca aagaaagctc atggcccaac cacaccacaa ccggagtatc agcatcatgc 540tcccataatg gggaaagcag tttttacaaa aatttgctat ggctgacggg gaagaatggt 600ttgtacccaa acctgagcaa gtcctatgca aacaacaaag agaaagaagt ccttgtacta 660tggggtgttc atcacccgcc taacataggt gaccaaaggg ctctctatca taaagaaaat 720gcttatgtct ctgtagtgtc ttcacattat agcagaaaat tcaccccaga aatagccaaa 780agacccaaag taagagatca agaaggaaga atcaactact actggactct acttgaaccc 840ggggatacaa taatatttga ggcaaatgga aatctaatag cgccaagata tgctttcgca 900ctgagtagag gctttggatc aggaatcatc aactcaaatg caccaatgga tgaatgtgat 960gcgaagtgcc aaacacctca gggagctata aacagcagtc ttcctttcca gaatgtacac 1020cctgtcacaa taggagagtg tccaaagtat gtcaggagtg caaaattaag gatggttaca 1080ggactaagga acatcccatc cattcaatcc agaggtttgt ttggagccat tgccggtttc 1140attgaagggg ggtggactgg aatggtagat ggttggtatg gttatcatca tcagaatgag 1200caaggatctg gctatgctgc agatcaaaaa agcacacaaa atgccattaa tgggattaca 1260aacaaggtca attctgtaat tgagaaaatg aacactcaat tcacagctgt gggcaaagag 1320ttcaacaaat tggaaagaag gatggaaaac ttaaataaaa aagttgatga tgggtttata 1380gacatttgga catataatgc agaattgttg gttctactgg aaaatgaaag gactttggat 1440ttccatgact ccaatgtgaa gaatctgtat gagaaagtaa aaagccaatt aaagaataat 1500gccaaagaaa taggaaatgg gtgttttgag ttctatcata agtgtaacga tgaatgcatg 1560gagagtgtaa aaaatggaac ttatgactat ccaaaatatt ccgaagaatc aaagttaaac 1620agggagaaaa ttgatggagt gaaattggaa tcaatgggag tctatcagat tctggcgatc 1680tactcaacag tcgccagttc tctggttctt ttggtctccc tgggggcaat cagcttctgg 1740atgtgttcca atgggtcttt gcagtgtaga atatgcatct gagagctc 1788381791DNAArtificial sequenceclone 776 of A/Brisbane 10/2007 38cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatgaag actatcattg ctttgagcta cattctatgt 120ctggttttca ctcaaaaact tcccggaaat gacaacagca cggcaacgct gtgccttggg 180caccatgcag taccaaacgg aacgatagtg aaaacaatca cgaatgacca aattgaagtt 240actaatgcta ctgagctggt tcagagttcc tcaacaggtg aaatatgcga cagtcctcat 300cagatccttg atggagaaaa ctgcacacta atagatgctc tattgggaga ccctcagtgt 360gatggcttcc aaaataagaa atgggacctt tttgttgaac gcagcaaagc ctacagcaac 420tgttaccctt atgatgtgcc ggattatgcc tcccttaggt cactagttgc ctcatccggc 480acactggagt ttaacaatga aagtttcaat tggactggag tcactcaaaa cggaacaagc 540tctgcttgca taaggagatc taataacagt ttctttagta gattgaattg gttgacccac 600ttaaaattca aatacccagc attgaacgtg actatgccaa acaatgaaaa atttgacaaa 660ttgtacattt ggggggttca ccacccgggt acggacaatg accaaatctt cctgtatgct 720caagcatcag gaagaatcac agtctctacc aaaagaagcc aacaaactgt aatcccgaat 780atcggatcta gacccagagt aaggaatatc cccagcagaa taagcatcta ttggacaata 840gtaaaaccgg gagacatact tttgattaac agcacaggga atctaattgc tcctaggggt 900tacttcaaaa tacgaagtgg gaaaagctca ataatgagat cagatgcacc cattggcaaa 960tgcaattctg aatgcatcac tccaaacgga agcattccca atgacaaacc attccaaaat 1020gtaaacagga tcacatacgg ggcctgtccc agatatgtta agcaaaacac tctgaaattg 1080gcaacaggga tgcgaaatgt accagagaaa caaactagag gcatatttgg cgcaatcgcg 1140ggtttcatag aaaatggttg ggagggaatg gtggatggtt ggtatggttt caggcatcaa 1200aattctgagg gaataggaca agcagcagat ctcaaaagca ctcaagcagc aatcgatcaa 1260atcaatggga agctgaatag gttgatcggg aaaaccaacg agaaattcca tcagattgaa 1320aaagagttct cagaagtcga agggagaatc caggaccttg agaaatatgt tgaggacacc 1380aaaatagatc tctggtcata caacgcggag cttcttgttg ccctggagaa ccaacataca 1440attgatctaa ctgactcaga aatgaacaaa ctgtttgaaa aaacaaagaa gcaactgagg 1500gaaaatgctg aggatatggg caatggttgt ttcaaaatat accacaaatg tgacaatgcc 1560tgcataggat caatcagaaa tggaacttat gaccacgatg tatacagaga tgaagcatta 1620aacaaccggt tccagatcaa gggcgttgag ctgaagtcag gatacaaaga ttggatacta 1680tggatttcct ttgccatatc atgttttttg ctttgtgttg ctttgttggg gttcatcatg 1740tgggcctgcc aaaaaggcaa cattaggtgc aacatttgca tttgagagct c 1791391791DNAArtificial sequenceclone 777 of A/Wisconsin/67/2005 39cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatgaag actatcattg ctttgagcta cattctatgt 120ctggttttca ctcaaaaact tcccggaaat gacaacagca cggcaacgct gtgccttggg 180caccatgcag taccaaacgg aacgatagtg aaaacaatca cgaatgacca aattgaagtt 240actaatgcta ctgagctggt tcagagttcc tcaacaggtg gaatatgcga cagtcctcat 300cagatccttg atggagaaaa ctgcacacta atagatgctc tattgggaga ccctcagtgt 360gatggcttcc aaaataagaa atgggacctt tttgttgaac gcagcaaagc ctacagcaac 420tgttaccctt atgatgtgcc ggattatgcc tcccttaggt cactagttgc ctcatccggc 480acactggagt ttaacgatga aagtttcaat tggactggag tcactcaaaa tggaacaagc 540tctgcttgca aaaggagatc taataacagt ttctttagta gattgaattg gttgacccac 600ttaaaattca aatacccagc attgaacgtg actatgccaa acaatgaaaa atttgacaaa 660ttgtacattt ggggggttca ccacccgggt acggacaatg accaaatctt cctgcatgct 720caagcatcag gaagaatcac agtctctacc aaaagaagcc aacaaactgt aatcccgaat 780atcggatcta gacccagaat aaggaatatc cccagcagaa taagcatcta ttggacaata 840gtaaaaccgg gagacatact tttgattaac agcacaggga atctaattgc tcctaggggt 900tacttcaaaa tacgaagtgg gaaaagctca ataatgagat cagatgcacc cattggcaaa 960tgcaattctg aatgcatcac tccaaatgga agcattccca atgacaaacc atttcaaaat 1020gtaaacagga tcacatatgg ggcctgtccc agatatgtta agcaaaacac tctgaaattg 1080gcaacaggga tgcgaaatgt accagagaaa caaactagag gcatatttgg cgcaatcgcg 1140ggtttcatag aaaatggttg ggagggaatg gtggatggtt ggtacggttt caggcatcaa 1200aattctgagg gaataggaca agcagcagat ctcaaaagca ctcaagcagc aatcaatcaa 1260atcaatggga agctgaatag gttgatcggg aaaaccaacg agaaattcca tcagattgaa 1320aaagagttct cagaagtaga agggagaatc caggacctcg agaaatatgt tgaggacact 1380aaaatagatc tctggtcata caacgcggag cttcttgttg ccctggagaa ccaacataca 1440attgatctaa ctgactcaga aatgaacaaa ctgtttgaaa gaacaaagaa gcaactgagg 1500gaaaatgctg aggatatggg caatggttgt ttcaaaatat accacaaatg tgacaatgcc 1560tgcataggat caatcagaaa tggaacttat gaccatgatg tatacagaga tgaagcatta 1620aacaaccggt tccagatcaa aggcgttgag ctgaagtcag gatacaaaga ttggatacta 1680tggatttcct ttgccatatc atgttttttg ctttgtgttg ctttgttggg gttcatcatg 1740tgggcctgcc aaaaaggcaa cattaggtgc aacatttgca tttgagagct c 1791401848DNAArtificial sequenceclone 778 of B/Malaysia/2506/2004 40cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatgaag gcaataattg tactactcat ggtagtaaca 120tccaatgcag atcgaatctg cactgggata acatcgtcaa actcaccaca tgttgtcaaa 180actgctactc aaggggaggt caatgtgact ggtgtaatac cactgacaac aacacccacc 240aaatctcatt ttgcaaatct caaaggaaca gaaaccagag ggaaactatg cccaaaatgc 300ctcaactgca cagatctgga cgtggccttg ggcagaccaa aatgcacggg gaacataccc 360tcggcaagag tttcaatact ccatgaagtc agacctgtta catctgggtg ctttcctata 420atgcacgaca gaacaaaaat tagacagctg cctaaacttc tcagaggata cgaacatatc 480aggttatcaa ctcataacgt tatcaatgca gaaaatgcac caggaggacc ctacaaaatt 540ggaacctcag ggtcttgccc taacgttacc aatggaaacg gatttttcgc aacaatggct 600tgggccgtcc caaaaaacga caacaacaaa acagcaacaa attcattaac aatagaagta 660ccatacattt gtacagaagg agaagaccaa attaccgttt gggggttcca ctctgataac 720gaaacccaaa tggcaaagct ctatggggac tcaaagcccc agaagttcac ctcatctgcc 780aacggagtga ccacacatta cgtttcacag attggtggct tcccaaatca aacagaagac 840ggaggactac cacaaagcgg tagaattgtt gttgattaca tggtgcaaaa atctgggaaa 900acaggaacaa ttacctatca aagaggtatt ttattgcctc aaaaagtgtg gtgcgcaagt 960ggcaggagca aggtaataaa aggatcgttg cctttaattg gagaagcaga ttgcctccac 1020gaaaaatacg gtggattaaa caaaagcaag ccttactaca caggggaaca tgcaaaggcc 1080ataggaaatt gcccaatatg ggtgaaaaca cccttgaagc tggccaatgg aaccaaatat 1140agacctcctg caaaactatt aaaggaaagg ggtttcttcg gagctattgc tggtttctta 1200gaaggaggat gggaaggaat gattgcaggt tggcacggat acacatccca tggggcacat 1260ggagtagcgg tggcagcaga ccttaagagc actcaagagg ccataaacaa gataacaaaa 1320aatctcaact ctttgagtga gctggaagta aagaatcttc aaagactaag cggtgccatg 1380gatgaactcc acaacgaaat actagaacta gacgagaaag tggatgatct cagagctgat 1440acaataagct cacaaataga actcgcagtc ctgctttcca atgaaggaat aataaacagt 1500gaagatgagc atctcttggc gcttgaaaga aagctgaaga aaatgctggg cccctctgct 1560gtagagatag ggaatggatg ctttgaaacc aaacacaagt gcaaccagac ctgtctcgac 1620agaatagctg ctggtacctt tgatgcagga gaattttctc tccccacttt tgattcactg 1680aatattactg ctgcatcttt aaatgacgat ggattggata atcatactat actgctttac 1740tactcaactg ctgcctccag tttggctgta acattgatga tagctatctt tgttgtttat 1800atggtctcca gagacaatgt ttcttgctcc atctgtctat aagagctc 1848411845DNAArtificial sequenceclone 779 of B/Florida/4/2006 41cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatgaag gcaataattg tactactcat ggtagtaaca 120tccaatgcag atcgaatctg cactggaata acatcttcaa actcacctca tgtggtcaaa 180acagccactc aaggggaggt caatgtgact ggtgtgatac cactaacaac aacaccaaca 240aaatcttatt ttgcaaatct caaaggaaca aggaccagag ggaaactatg cccagactgt 300ctcaactgca cagatctgga tgtggctttg ggcagaccaa tgtgtgtggg gaccacacct 360tcggcgaagg cttcaatact ccacgaagtc aaacctgtta catccgggtg ctttcctata 420atgcacgaca gaacaaaaat caggcaacta cccaatcttc tcagaggata tgaaaatatc 480aggctatcaa cccaaaacgt catcgatgcg gaaaaggcac caggaggacc ctacagactt 540ggaacctcag gatcttgccc taacgctacc agtaagagcg gatttttcgc aacaatggct 600tgggctgtcc caaaggacaa caacaaaaat gcaacgaacc cactaacagt agaagtacca 660tacatttgta cagaagggga agaccaaatc actgtttggg ggttccattc agataacaaa 720acccaaatga agaacctcta tggagactca aatcctcaaa agttcacctc atctgctaat 780ggagtaacca cacactatgt ttctcagatt ggcagcttcc cagatcaaac agaagacgga 840ggactaccac aaagcggcag gattgttgtt gattacatga tgcaaaaacc tgggaaaaca 900ggaacaattg tctaccaaag aggtgttttg ttgcctcaaa aggtgtggtg cgcgagtggc 960aggagcaaag taataaaagg gtccttgcct ttaattggtg aagcagattg ccttcatgaa 1020aaatacggtg gattaaacaa aagcaagcct tactacacag gagaacatgc aaaagccata 1080ggaaattgcc caatatgggt gaaaacacct ttgaagctcg ccaatggaac caaatataga 1140cctcctgcaa aactattaaa ggaaaggggt ttcttcggag ctattgctgg tttcctagaa 1200ggaggatggg aaggaatgat tgcaggctgg cacggataca catctcacgg agcacatgga 1260gtggcagtgg cggcggacct taagagtacg caagaagcta taaacaagat aacaaaaaat 1320ctcaattctt tgagtgagct agaagtaaag aatcttcaaa gactaagtgg tgccatggat 1380gaactccaca acgaaatact cgagctggat gagaaagtgg atgatctcag agctgacact 1440ataagctcgc aaatagaact tgcagtcttg ctttccaacg aaggaataat aaacagtgaa 1500gatgagcatc tattggcact tgagagaaaa ctaaagaaaa tgctgggtcc ctctgctgta 1560gagataggaa atggatgctt cgaaaccaaa cacaagtgca accagacctg cttagacagg 1620atagctgctg gcacctttaa tgcaggagaa ttttctctcc ccacttttga ttcactgaac 1680attactgctg catctttaaa tgatgatgga ttggataacc atactatact gctctattac 1740tcaactgctg cttctagttt ggctgtaaca ttgatgctag ctatttttat tgtttatatg 1800gtctccagag acaacgtttc atgctccatc tgtctataag agctc 1845421779DNAArtificial sequenceclone 780 of A/Singapore/1/57 42cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatggcc atcatttatc taattctcct gttcacagca 120gtgagagggg accaaatatg cattggatac catgccaata attccacaga gaaggtcgac 180acaattctag agcggaacgt cactgtgact catgccaagg acattcttga gaagacccat 240aacggaaagt tatgcaaact aaacggaatc cctccacttg aactagggga ctgtagcatt 300gccggatggc tccttggaaa tccagaatgt gataggcttc taagtgtgcc agaatggtcc 360tatataatgg agaaagaaaa cccgagagac ggtttgtgtt atccaggcag cttcaatgat 420tatgaagaat tgaaacatct cctcagcagc gtgaaacatt tcgagaaagt aaagattctg 480cccaaagata gatggacaca gcatacaaca actggaggtt cacgggcctg cgcggtgtct 540ggtaatccat cattcttcag gaacatggtc tggctgacaa agaaagaatc aaattatccg 600gttgccaaag gatcgtacaa caatacaagc ggagaacaaa tgctaataat ttggggggtg 660caccatccca atgatgagac agaacaaaga acattgtacc agaatgtggg aacctatgtt 720tccgtaggca catcaacatt gaacaaaagg tcaaccccag acatagcaac aaggcctaaa 780gtgaatggac taggaagtag aatggagttc tcttggaccc tattggatat gtgggacacc 840ataaattttg agagtactgg taatctaatt gcaccagagt atggattcaa aatatcgaaa 900agaggtagtt cagggatcat gaaaacagaa ggaacacttg agaactgtga gaccaaatgc 960caaactcctt tgggagcaat aaatacaaca ttgccttttc acaatgtcca cccactgaca

1020ataggtgagt gccccaaata tgtaaaatcg gagaagttgg tcttagcaac aggactaagg 1080aatgttcccc agattgaatc aagaggattg tttggggcaa tagctggttt tatagaagga 1140ggatggcaag gaatggttga tggttggtat ggataccatc acagcaatga ccagggatca 1200gggtatgcag cagacaaaga atccactcaa aaggcatttg atggaatcac caacaaggta 1260aattctgtga ttgaaaagat gaacacccaa tttgaagctg ttgggaaaga gttcagtaac 1320ttagagagaa gactggagaa cttgaacaaa aagatggaag acgggtttct agatgtgtgg 1380acatacaatg ctgagcttct agttctgatg gaaaatgaga ggacacttga ctttcatgat 1440tctaatgtca agaatctgta tgataaagtc agaatgcagc tgagagacaa cgtcaaagaa 1500ctaggaaatg gatgttttga attttatcac aaatgtgatg atgaatgcat gaatagtgtg 1560aaaaacggga cgtatgatta tcccaagtat gaagaagagt ctaaactaaa tagaaatgaa 1620atcaaagggg taaaattgag cagcatgggg gtttatcaaa tccttgccat ttatgctaca 1680gtagcaggtt ctctgtcact ggcaatcatg atggctggga tctctttctg gatgtgctcc 1740aacgggtctc tgcagtgcag gatctgcata tgagagctc 1779431794DNAArtificial sequenceclone 781 of A/Anhui/1/2005 43cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatggag aaaatagtgc ttcttcttgc aatagtcagc 120cttgttaaaa gtgatcagat ttgcattggt taccatgcaa acaactcgac agagcaggtt 180gacacaataa tggaaaagaa cgttactgtt acacatgccc aagacatact ggaaaagaca 240cacaacggga agctctgcga tctagatgga gtgaagcctc tgattttaag agattgtagt 300gtagctggat ggctcctcgg aaacccaatg tgtgacgagt tcatcaatgt gccggaatgg 360tcttacatag tggagaaggc caacccagcc aatgacctct gttacccagg gaatttcaac 420gactatgaag aactgaaaca cctattgagc agaataaacc attttgagaa aattcagatc 480atccccaaaa gttcttggtc cgatcatgaa gcctcatcag gggtcagctc agcatgtcca 540taccagggaa cgccctcctt tttcagaaat gtggtatggc ttatcaaaaa gaacaataca 600tacccaacaa taaagagaag ctacaataat accaaccagg aagatctttt gatactgtgg 660gggattcatc attctaatga tgcggcagag cagacaaagc tctatcaaaa cccaaccacc 720tatatttccg ttgggacatc aacactaaac cagagattgg taccaaaaat agctactaga 780tccaaagtaa acgggcaaag tggaaggatg gatttcttct ggacaatttt aaaaccgaat 840gatgcaatca acttcgagag taatggaaat ttcattgctc cagaatatgc atacaaaatt 900gtcaagaaag gggactcagc aattgttaaa agtgaagtgg aatatggtaa ctgcaataca 960aagtgtcaaa ctccaatagg ggcgataaac tctagtatgc cattccacaa catacaccct 1020ctcaccatcg gggaatgccc caaatatgtg aaatcaaaca aattagtcct tgcgactggg 1080ctcagaaata gtcctctaag agaaagaaga agaaaaagag gactatttgg agctatagca 1140gggtttatag agggaggatg gcagggaatg gtagatggtt ggtatgggta ccaccatagc 1200aatgagcagg ggagtgggta cgctgcagac aaagaatcca ctcaaaaggc aatagatgga 1260gtcaccaata aggtcaactc gatcattgac aaaatgaaca ctcagtttga ggccgttgga 1320agggaattta ataacttaga aaggagaata gagaatttaa acaagaaaat ggaagacgga 1380ttcctagatg tctggactta taatgctgaa cttctggttc tcatggaaaa tgagagaact 1440ctagacttcc atgattcaaa tgtcaagaac ctttacgaca aggtccgact acagcttagg 1500gataatgcaa aggagctggg taacggttgt ttcgagttct atcacaaatg tgataatgaa 1560tgtatggaaa gtgtaagaaa cggaacgtat gactacccgc agtattcaga agaagcaaga 1620ttaaaaagag aggaaataag tggagtaaaa ttggaatcaa taggaactta ccaaatactg 1680tcaatttatt caacagttgc gagttctcta gcactggcaa tcatggtggc tggtctatct 1740ttgtggatgt gctccaatgg gtcgttacaa tgcagaattt gcatttaaga gctc 1794441797DNAArtificial sequenceclone 782 of A/Vietnam/1194/2004 44cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatggag aaaatagtgc ttctttttgc aatagtcagt 120cttgttaaaa gtgatcagat ttgcattggt taccatgcaa acaactcgac agagcaggtt 180gacacaataa tggaaaagaa cgttactgtt acacatgccc aagacatact ggaaaagaca 240cacaatggga agctctgcga tctagatgga gtgaagcctc taattttgag agattgtagt 300gtagctggat ggctcctcgg aaacccaatg tgtgacgagt tcatcaatgt gccggaatgg 360tcttacatag tggagaaggc caatccagtc aatgacctct gttacccagg ggatttcaat 420gactatgaag aattgaaaca cctattgagc agaataaacc attttgagaa aattcagatc 480atccccaaaa gttcttggtc cagtcatgaa gcctcattgg gggtcagctc agcatgtcca 540taccagggaa agtcctcctt tttcagaaat gtggtatggc ttatcaaaaa gaacagtaca 600tacccaacaa taaagaggag ctacaataat accaaccaag aagatctttt ggtactgtgg 660gggattcacc atcctaatga tgcggcagag cagacaaagc tctatcaaaa cccaaccacc 720tatatttccg ttgggacatc tacactaaac cagagattgg taccaagaat agctactaga 780tccaaagtaa acgggcaaag tggaaggatg gagttcttct ggacaatttt aaaaccgaat 840gatgcaatca acttcgagag taatggaaat ttcattgctc cagaatatgc atacaaaatt 900gtcaagaaag gggactcaac aattatgaaa agtgaattgg aatatggtaa ctgcaatacc 960aagtgtcaaa ctccaatggg ggcgataaac tctagcatgc cattccacaa tatacaccct 1020ctcaccatcg gggaatgccc caaatatgtg aaatcaaaca gattagtcct tgcgactggg 1080ctcagaaata gccctcaaag agagagaaga agaaaaaaga gaggattatt tggagctata 1140gcaggtttta tagagggagg atggcaggga atggtagatg gttggtatgg gtaccaccat 1200agcaacgagc aggggagtgg gtacgctgca gacaaagaat ccactcaaaa ggcaatagat 1260ggagtcacca ataaggtcaa ctcgattatt gacaaaatga acactcagtt tgaggccgtt 1320ggaagggaat ttaacaactt agaaaggaga atagagaatt taaacaagaa gatggaagac 1380gggttcctag atgtctggac ttataatgct gaacttctag ttctcatgga aaacgagaga 1440actctagact ttcatgactc aaatgtcaag aacctttacg acaaggtccg actacagctt 1500agggataatg caaaggagct gggtaacggt tgtttcgagt tctatcataa atgtgataat 1560gaatgtatgg aaagtgtaag aaacggaacg tatgactacc cgcagtattc agaagaagca 1620agactaaaaa gagaggaaat aagtggagta aaattggaat caataggaat ttaccaaata 1680ttgtcaattt attctacagt ggccagctcc ctagcactgg caatcatggt agctggtcta 1740tccttatgga tgtgctccaa tgggtcgtta caatgcagaa tttgcattta agagctc 1797451791DNAArtificial sequenceclone 783 of A/Teal/HongKong/W312/97 45cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatgatt gcaatcattg taatagcaat actggcagca 120gccggaaagt cagacaagat ctgcattggg tatcatgcca acaattcaac aacacaggta 180gatacgatac ttgagaagaa tgtgactgtc acacactcaa ttgaattgct ggaaaatcag 240aaggaagaaa gattctgcaa gatattgaac aaggcccctc tcgacttaag ggaatgtacc 300atagagggtt ggatcttggg gaatccccaa tgcgacctat tgcttggtga tcaaagctgg 360tcatacattg tggaaagacc tactgctcaa aacgggatct gctacccagg aaccttaaat 420gaggtagaag aactgagggc acttattgga tcaggagaaa gggtagagag atttgagatg 480tttccccaaa gcacctggca aggagttgac accaacagtg gaacaacaag atcctgccct 540tattctactg gtgcgtcttt ctacagaaac ctcctatgga taataaaaac caagacagca 600gaatatccag taattaaggg aatttacaac aacactggaa cccagccaat cctctatttc 660tggggtgtgc atcatcctcc taacaccgac gagcaagata ctctgtatgg ctctggtgat 720cgatacgtta gaatgggaac tgaaagcatg aattttgcca agagtccgga aattgcggca 780aggcctgctg tgaatggaca aagaggcaga attgattatt attggtcggt tttaaaacca 840ggggaaacct tgaatgtgga atctaatgga aatctaatcg ccccttggta tgcatacaaa 900tttgtcaaca caaatagtaa aggagccgtc ttcaggtcag atttaccaat cgagaactgc 960gatgccacat gccagactat tgcaggggtt ctaaggacca ataaaacatt tcagaatgtg 1020agtcccctgt ggataggaga atgtcccaaa tacgtgaaaa gtgaaagtct gaggcttgca 1080actggactaa gaaatgttcc acagattgaa actagaggac tcttcggagc tattgcaggg 1140tttattgaag gaggatggac tgggatgata gatgggtggt atggctatca ccatgaaaat 1200tctcaagggt caggatatgc agcagacaga gaaagcactc aaaaggctgt aaacagaatt 1260acaaataagg tcaattccat catcaacaaa atgaacacac aatttgaagc tgtcgatcac 1320gaattttcaa atctggagag gagaattgac aatctgaaca aaagaatgca agatggattt 1380ctggatgttt ggacatacaa tgctgaactg ttggttcttc ttgaaaacga aagaacacta 1440gacatgcatg acgcaaatgt gaagaaccta catgaaaagg tcaaatcaca actaagggac 1500aatgctacga tcttagggaa tggttgcttt gaattttggc ataagtgtga caatgaatgc 1560atagagtctg tcaaaaatgg tacatatgac tatcccaaat accagactga aagcaaatta 1620aacaggctaa aaatagaatc agtaaagcta gagaaccttg gtgtgtatca aattcttgcc 1680atttatagta cggtatcgag cagcctagtg ttggtagggc tgatcatggc aatgggtctt 1740tggatgtgtt caaatggttc aatgcagtgc aggatatgta tataagagct c 1791461803DNAArtificial sequenceclone 784 of A/Equine/Prague/56 46cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatgaac actcaaattc taatattagc cacttcggca 120ttcttctatg tacgtgcaga taaaatctgc ctaggacatc atgctgtgtc taatggaacc 180aaagtagaca cccttactga aaaaggaata gaagttgtca atgcaacaga aacagttgaa 240caaacaaaca tccctaagat ctgctcaaaa ggaaaacaga ctgttgacct tggtcaatgt 300ggattactag ggaccgttat tggtcctccc caatgtgacc aatttcttga gttctctgct 360aatttaatag ttgaaagaag ggaaggtaat gacatttgtt atccaggcaa atttgacaat 420gaagaaacat tgagaaaaat actcagaaaa tccggaggaa ttaaaaagga gaatatggga 480ttcacatata ccggagtgag aaccaatgga gagactagcg catgtagaag gtcaagatct 540tccttttatg cagagatgaa atggcttcta tccagcacag acaatgggac atttccacaa 600atgacaaagt cctacaagaa cactaagaag gtaccagctc tgataatctg gggaatccac 660cactcaggat caactactga acagactaga ttatatggaa gtgggaataa attgataaca 720gtttggagtt ccaaatacca acaatctttt gtcccaaatc ctggaccaag accgcaaatg 780aatggtcaat caggaagaat tgactttcac tggctgatgc tagatcccaa tgatactgtc 840actttcagtt ttaatggggc ctttatagca cctgaccgcg ccagttttct aagaggtaaa 900tctctaggaa tccaaagtga tgcacaactt gacaataatt gtgaaggtga atgctatcat 960attggaggta ctataattag caacttgccc tttcaaaaca ttaatagtag ggcaatcgga 1020aaatgcccca gatacgtgaa gcagaagagc ttaatgctag caacaggaat gaaaaatgtt 1080cctgaagctc ctgcacataa acaactaact catcacatgc gcaaaaaaag aggtttattt 1140ggtgcaatag caggattcat tgaaaatggg tgggaaggat taatagacgg atggtatgga 1200tataagcatc agaatgcaca aggagaaggg actgctgcag actacaaaag tacacaatct 1260gctatcaacc aaataaccgg aaaattgaac agactaatag aaaaaaccaa ccagcaattc 1320gaactaatag ataatgagtt caatgaaata gaaaaacaaa ttggcaatgt tattaactgg 1380actagagatt ctatcatcga agtatggtca tataatgcag agttcctcgt agcagtggag 1440aatcaacaca ctattgattt aactgactca gaaatgaaca aactatatga aaaggtaaga 1500agacaactga gagaaaatgc tgaggaagat ggtaatggct gttttgaaat attccaccaa 1560tgtgacaatg attgcatggc cagcattaga aacaacacat atgaccataa aaaatacaga 1620aaagaggcaa tacaaaacag aatccagatt gacgcagtaa agttgagcag tggttacaaa 1680gatataatac tttggtttag cttcggggca tcatgtttct tatttcttgc cattgcaatg 1740ggtcttgttt tcatatgtat aaaaaatgga aacatgcggt gcactatttg tatataagag 1800ctc 1803471773DNAArtificial sequenceclone 785 of A/HongKong/1073/99 47cactttgtga gtctacactt tgattccctt caaacacata caaagagaag agactaatta 60attaattaat catcttgaga gaaaatggaa acaatatcac taataactat actactagta 120gtaacagcaa gcaatgcaga taaaatctgc atcggccacc agtcaacaaa ctccacagaa 180actgtggaca cgctaacaga aaccaatgtt cctgtgacac atgccaaaga attgctccac 240acagagcata atggaatgct gtgtgcaaca agcctgggac atcccctcat tctagacaca 300tgcactattg aaggactagt ctatggcaac ccttcttgtg acctgctgtt gggaggaaga 360gaatggtcct acatcgtcga aagatcatca gctgtaaatg gaacgtgtta ccctgggaat 420gtagaaaacc tagaggaact caggacactt tttagttccg ctagttccta ccaaagaatc 480caaatcttcc cagacacaac ctggaatgtg acttacactg gaacaagcag agcatgttca 540ggttcattct acaggagtat gagatggctg actcaaaaga gcggttttta ccctgttcaa 600gacgcccaat acacaaataa caggggaaag agcattcttt tcgtgtgggg catacatcac 660ccacccacct ataccgagca aacaaatttg tacataagaa acgacacaac aacaagcgtg 720acaacagaag atttgaatag gaccttcaaa ccagtgatag ggccaaggcc ccttgtcaat 780ggtctgcagg gaagaattga ttattattgg tcggtactaa aaccaggcca aacattgcga 840gtacgatcca atgggaatct aattgctcca tggtatggac acgttctttc aggagggagc 900catggaagaa tcctgaagac tgatttaaaa ggtggtaatt gtgtagtgca atgtcagact 960gaaaaaggtg gcttaaacag tacattgcca ttccacaata tcagtaaata tgcatttgga 1020acctgcccca aatatgtaag agttaatagt ctcaaactgg cagtcggtct gaggaacgtg 1080cctgctagat caagtagagg actatttgga gccatagctg gattcataga aggaggttgg 1140ccaggactag tcgctggctg gtatggtttc cagcattcaa atgatcaagg ggttggtatg 1200gctgcagata gggattcaac tcaaaaggca attgataaaa taacatccaa ggtgaataat 1260atagtcgaca agatgaacaa gcaatatgaa ataattgatc atgaatttag tgaggttgaa 1320actagactca atatgatcaa taataagatt gatgaccaaa tacaagacgt atgggcatat 1380aatgcagaat tgctagtact acttgaaaat caaaaaacac tcgatgagca tgatgcgaac 1440gtgaacaatc tatataacaa ggtgaagagg gcactgggct ccaatgctat ggaagatggg 1500aaaggctgtt tcgagctata ccataaatgt gatgatcagt gcatggaaac aattcggaac 1560gggacctata ataggagaaa gtatagagag gaatcaagac tagaaaggca gaaaatagag 1620ggggttaagc tggaatctga gggaacttac aaaatcctca ccatttattc gactgtcgcc 1680tcatctcttg tgcttgcaat ggggtttgct gccttcctgt tctgggccat gtccaatgga 1740tcttgcagat gcaacatttg tatataagag ctc 177348565PRTArtificial sequenceclonet 774 of A/Brisbane/59/2007 48Met Lys Val Lys Leu Leu Val Leu Leu Cys Thr Phe Thr Ala Thr Tyr1 5 10 15Ala Asp Thr Ile Cys Ile Gly Tyr His Ala Asn Asn Ser Thr Asp Thr 20 25 30Val Asp Thr Val Leu Glu Lys Asn Val Thr Val Thr His Ser Val Asn 35 40 45Leu Leu Glu Asn Ser His Asn Gly Lys Leu Cys Leu Leu Lys Gly Ile 50 55 60Ala Pro Leu Gln Leu Gly Asn Cys Ser Val Ala Gly Trp Ile Leu Gly65 70 75 80Asn Pro Glu Cys Glu Leu Leu Ile Ser Lys Glu Ser Trp Ser Tyr Ile 85 90 95Val Glu Lys Pro Asn Pro Glu Asn Gly Thr Cys Tyr Pro Gly His Phe 100 105 110Ala Asp Tyr Glu Glu Leu Arg Glu Gln Leu Ser Ser Val Ser Ser Phe 115 120 125Glu Arg Phe Glu Ile Phe Pro Lys Glu Ser Ser Trp Pro Asn His Thr 130 135 140Val Thr Gly Val Ser Ala Ser Cys Ser His Asn Gly Glu Ser Ser Phe145 150 155 160Tyr Arg Asn Leu Leu Trp Leu Thr Gly Lys Asn Gly Leu Tyr Pro Asn 165 170 175Leu Ser Lys Ser Tyr Ala Asn Asn Lys Glu Lys Glu Val Leu Val Leu 180 185 190Trp Gly Val His His Pro Pro Asn Ile Gly Asp Gln Lys Ala Leu Tyr 195 200 205His Thr Glu Asn Ala Tyr Val Ser Val Val Ser Ser His Tyr Ser Arg 210 215 220Lys Phe Thr Pro Glu Ile Ala Lys Arg Pro Lys Val Arg Asp Gln Glu225 230 235 240Gly Arg Ile Asn Tyr Tyr Trp Thr Leu Leu Glu Pro Gly Asp Thr Ile 245 250 255Ile Phe Glu Ala Asn Gly Asn Leu Ile Ala Pro Arg Tyr Ala Phe Ala 260 265 270Leu Ser Arg Gly Phe Gly Ser Gly Ile Ile Asn Ser Asn Ala Pro Met 275 280 285Asp Lys Cys Asp Ala Lys Cys Gln Thr Pro Gln Gly Ala Ile Asn Ser 290 295 300Ser Leu Pro Phe Gln Asn Val His Pro Val Thr Ile Gly Glu Cys Pro305 310 315 320Lys Tyr Val Arg Ser Ala Lys Leu Arg Met Val Thr Gly Leu Arg Asn 325 330 335Ile Pro Ser Ile Gln Ser Arg Gly Leu Phe Gly Ala Ile Ala Gly Phe 340 345 350Ile Glu Gly Gly Trp Thr Gly Met Val Asp Gly Trp Tyr Gly Tyr His 355 360 365His Gln Asn Glu Gln Gly Ser Gly Tyr Ala Ala Asp Gln Lys Ser Thr 370 375 380Gln Asn Ala Ile Asn Gly Ile Thr Asn Lys Val Asn Ser Val Ile Glu385 390 395 400Lys Met Asn Thr Gln Phe Thr Ala Val Gly Lys Glu Phe Asn Lys Leu 405 410 415Glu Arg Arg Met Glu Asn Leu Asn Lys Lys Val Asp Asp Gly Phe Ile 420 425 430Asp Ile Trp Thr Tyr Asn Ala Glu Leu Leu Val Leu Leu Glu Asn Glu 435 440 445Arg Thr Leu Asp Phe His Asp Ser Asn Val Lys Asn Leu Tyr Glu Lys 450 455 460Val Lys Ser Gln Leu Lys Asn Asn Ala Lys Glu Ile Gly Asn Gly Cys465 470 475 480Phe Glu Phe Tyr His Lys Cys Asn Asp Glu Cys Met Glu Ser Val Lys 485 490 495Asn Gly Thr Tyr Asp Tyr Pro Lys Tyr Ser Glu Glu Ser Lys Leu Asn 500 505 510Arg Glu Lys Ile Asp Gly Val Lys Leu Glu Ser Met Gly Val Tyr Gln 515 520 525Ile Leu Ala Ile Tyr Ser Thr Val Ala Ser Ser Leu Val Leu Leu Val 530 535 540Ser Leu Gly Ala Ile Ser Phe Trp Met Cys Ser Asn Gly Ser Leu Gln545 550 555 560Cys Arg Ile Cys Ile 56549565PRTArtificial sequenceclone 775 of A/Solomon Islands 3/2006 49Met Lys Val Lys Leu Leu Val Leu Leu Cys Thr Phe Thr Ala Thr Tyr1 5 10 15Ala Asp Thr Ile Cys Ile Gly Tyr His Ala Asn Asn Ser Thr Asp Thr 20 25 30Val Asp Thr Val Leu Glu Lys Asn Val Thr Val Thr His Ser Val Asn 35 40 45Leu Leu Glu Asp Ser His Asn Gly Lys Leu Cys Leu Leu Lys Gly Ile 50 55 60Ala Pro Leu Gln Leu Gly Asn Cys Ser Val Ala Gly Trp Ile Leu Gly65 70 75 80Asn Pro Glu Cys Glu Leu Leu Ile Ser Arg Glu Ser Trp Ser Tyr Ile 85 90 95Val Glu Lys Pro Asn Pro Glu Asn Gly Thr Cys Tyr Pro Gly His Phe 100 105 110Ala Asp Tyr Glu Glu Leu Arg Glu Gln Leu Ser Ser Val Ser Ser Phe 115 120 125Glu Arg Phe Glu Ile Phe Pro Lys Glu Ser Ser Trp Pro Asn His Thr 130 135 140Thr Thr Gly Val Ser Ala Ser Cys Ser His Asn Gly Glu Ser Ser Phe145 150 155 160Tyr Lys Asn Leu Leu Trp Leu Thr Gly Lys Asn Gly Leu Tyr Pro Asn 165 170 175Leu Ser Lys Ser Tyr Ala Asn Asn Lys Glu Lys Glu Val Leu Val Leu 180 185 190Trp Gly Val His His Pro Pro Asn Ile Gly Asp Gln Arg Ala Leu Tyr 195 200 205His Lys Glu Asn Ala Tyr Val Ser Val Val Ser Ser His Tyr Ser Arg 210 215 220Lys Phe Thr Pro Glu Ile Ala Lys Arg Pro

Lys Val Arg Asp Gln Glu225 230 235 240Gly Arg Ile Asn Tyr Tyr Trp Thr Leu Leu Glu Pro Gly Asp Thr Ile 245 250 255Ile Phe Glu Ala Asn Gly Asn Leu Ile Ala Pro Arg Tyr Ala Phe Ala 260 265 270Leu Ser Arg Gly Phe Gly Ser Gly Ile Ile Asn Ser Asn Ala Pro Met 275 280 285Asp Glu Cys Asp Ala Lys Cys Gln Thr Pro Gln Gly Ala Ile Asn Ser 290 295 300Ser Leu Pro Phe Gln Asn Val His Pro Val Thr Ile Gly Glu Cys Pro305 310 315 320Lys Tyr Val Arg Ser Ala Lys Leu Arg Met Val Thr Gly Leu Arg Asn 325 330 335Ile Pro Ser Ile Gln Ser Arg Gly Leu Phe Gly Ala Ile Ala Gly Phe 340 345 350Ile Glu Gly Gly Trp Thr Gly Met Val Asp Gly Trp Tyr Gly Tyr His 355 360 365His Gln Asn Glu Gln Gly Ser Gly Tyr Ala Ala Asp Gln Lys Ser Thr 370 375 380Gln Asn Ala Ile Asn Gly Ile Thr Asn Lys Val Asn Ser Val Ile Glu385 390 395 400Lys Met Asn Thr Gln Phe Thr Ala Val Gly Lys Glu Phe Asn Lys Leu 405 410 415Glu Arg Arg Met Glu Asn Leu Asn Lys Lys Val Asp Asp Gly Phe Ile 420 425 430Asp Ile Trp Thr Tyr Asn Ala Glu Leu Leu Val Leu Leu Glu Asn Glu 435 440 445Arg Thr Leu Asp Phe His Asp Ser Asn Val Lys Asn Leu Tyr Glu Lys 450 455 460Val Lys Ser Gln Leu Lys Asn Asn Ala Lys Glu Ile Gly Asn Gly Cys465 470 475 480Phe Glu Phe Tyr His Lys Cys Asn Asp Glu Cys Met Glu Ser Val Lys 485 490 495Asn Gly Thr Tyr Asp Tyr Pro Lys Tyr Ser Glu Glu Ser Lys Leu Asn 500 505 510Arg Glu Lys Ile Asp Gly Val Lys Leu Glu Ser Met Gly Val Tyr Gln 515 520 525Ile Leu Ala Ile Tyr Ser Thr Val Ala Ser Ser Leu Val Leu Leu Val 530 535 540Ser Leu Gly Ala Ile Ser Phe Trp Met Cys Ser Asn Gly Ser Leu Gln545 550 555 560Cys Arg Ile Cys Ile 56550566PRTArtificial sequenceclone 776 of A/Brisbane/10/2007 50Met Lys Thr Ile Ile Ala Leu Ser Tyr Ile Leu Cys Leu Val Phe Thr1 5 10 15Gln Lys Leu Pro Gly Asn Asp Asn Ser Thr Ala Thr Leu Cys Leu Gly 20 25 30His His Ala Val Pro Asn Gly Thr Ile Val Lys Thr Ile Thr Asn Asp 35 40 45Gln Ile Glu Val Thr Asn Ala Thr Glu Leu Val Gln Ser Ser Ser Thr 50 55 60Gly Glu Ile Cys Asp Ser Pro His Gln Ile Leu Asp Gly Glu Asn Cys65 70 75 80Thr Leu Ile Asp Ala Leu Leu Gly Asp Pro Gln Cys Asp Gly Phe Gln 85 90 95Asn Lys Lys Trp Asp Leu Phe Val Glu Arg Ser Lys Ala Tyr Ser Asn 100 105 110Cys Tyr Pro Tyr Asp Val Pro Asp Tyr Ala Ser Leu Arg Ser Leu Val 115 120 125Ala Ser Ser Gly Thr Leu Glu Phe Asn Asn Glu Ser Phe Asn Trp Thr 130 135 140Gly Val Thr Gln Asn Gly Thr Ser Ser Ala Cys Ile Arg Arg Ser Asn145 150 155 160Asn Ser Phe Phe Ser Arg Leu Asn Trp Leu Thr His Leu Lys Phe Lys 165 170 175Tyr Pro Ala Leu Asn Val Thr Met Pro Asn Asn Glu Lys Phe Asp Lys 180 185 190Leu Tyr Ile Trp Gly Val His His Pro Gly Thr Asp Asn Asp Gln Ile 195 200 205Phe Leu Tyr Ala Gln Ala Ser Gly Arg Ile Thr Val Ser Thr Lys Arg 210 215 220Ser Gln Gln Thr Val Ile Pro Asn Ile Gly Ser Arg Pro Arg Val Arg225 230 235 240Asn Ile Pro Ser Arg Ile Ser Ile Tyr Trp Thr Ile Val Lys Pro Gly 245 250 255Asp Ile Leu Leu Ile Asn Ser Thr Gly Asn Leu Ile Ala Pro Arg Gly 260 265 270Tyr Phe Lys Ile Arg Ser Gly Lys Ser Ser Ile Met Arg Ser Asp Ala 275 280 285Pro Ile Gly Lys Cys Asn Ser Glu Cys Ile Thr Pro Asn Gly Ser Ile 290 295 300Pro Asn Asp Lys Pro Phe Gln Asn Val Asn Arg Ile Thr Tyr Gly Ala305 310 315 320Cys Pro Arg Tyr Val Lys Gln Asn Thr Leu Lys Leu Ala Thr Gly Met 325 330 335Arg Asn Val Pro Glu Lys Gln Thr Arg Gly Ile Phe Gly Ala Ile Ala 340 345 350Gly Phe Ile Glu Asn Gly Trp Glu Gly Met Val Asp Gly Trp Tyr Gly 355 360 365Phe Arg His Gln Asn Ser Glu Gly Ile Gly Gln Ala Ala Asp Leu Lys 370 375 380Ser Thr Gln Ala Ala Ile Asp Gln Ile Asn Gly Lys Leu Asn Arg Leu385 390 395 400Ile Gly Lys Thr Asn Glu Lys Phe His Gln Ile Glu Lys Glu Phe Ser 405 410 415Glu Val Glu Gly Arg Ile Gln Asp Leu Glu Lys Tyr Val Glu Asp Thr 420 425 430Lys Ile Asp Leu Trp Ser Tyr Asn Ala Glu Leu Leu Val Ala Leu Glu 435 440 445Asn Gln His Thr Ile Asp Leu Thr Asp Ser Glu Met Asn Lys Leu Phe 450 455 460Glu Lys Thr Lys Lys Gln Leu Arg Glu Asn Ala Glu Asp Met Gly Asn465 470 475 480Gly Cys Phe Lys Ile Tyr His Lys Cys Asp Asn Ala Cys Ile Gly Ser 485 490 495Ile Arg Asn Gly Thr Tyr Asp His Asp Val Tyr Arg Asp Glu Ala Leu 500 505 510Asn Asn Arg Phe Gln Ile Lys Gly Val Glu Leu Lys Ser Gly Tyr Lys 515 520 525Asp Trp Ile Leu Trp Ile Ser Phe Ala Ile Ser Cys Phe Leu Leu Cys 530 535 540Val Ala Leu Leu Gly Phe Ile Met Trp Ala Cys Gln Lys Gly Asn Ile545 550 555 560Arg Cys Asn Ile Cys Ile 56551566PRTArtificial sequenceclone 777 of A/Wisconsin/67/2005 51Met Lys Thr Ile Ile Ala Leu Ser Tyr Ile Leu Cys Leu Val Phe Thr1 5 10 15Gln Lys Leu Pro Gly Asn Asp Asn Ser Thr Ala Thr Leu Cys Leu Gly 20 25 30His His Ala Val Pro Asn Gly Thr Ile Val Lys Thr Ile Thr Asn Asp 35 40 45Gln Ile Glu Val Thr Asn Ala Thr Glu Leu Val Gln Ser Ser Ser Thr 50 55 60Gly Gly Ile Cys Asp Ser Pro His Gln Ile Leu Asp Gly Glu Asn Cys65 70 75 80Thr Leu Ile Asp Ala Leu Leu Gly Asp Pro Gln Cys Asp Gly Phe Gln 85 90 95Asn Lys Lys Trp Asp Leu Phe Val Glu Arg Ser Lys Ala Tyr Ser Asn 100 105 110Cys Tyr Pro Tyr Asp Val Pro Asp Tyr Ala Ser Leu Arg Ser Leu Val 115 120 125Ala Ser Ser Gly Thr Leu Glu Phe Asn Asp Glu Ser Phe Asn Trp Thr 130 135 140Gly Val Thr Gln Asn Gly Thr Ser Ser Ala Cys Lys Arg Arg Ser Asn145 150 155 160Asn Ser Phe Phe Ser Arg Leu Asn Trp Leu Thr His Leu Lys Phe Lys 165 170 175Tyr Pro Ala Leu Asn Val Thr Met Pro Asn Asn Glu Lys Phe Asp Lys 180 185 190Leu Tyr Ile Trp Gly Val His His Pro Gly Thr Asp Asn Asp Gln Ile 195 200 205Phe Leu His Ala Gln Ala Ser Gly Arg Ile Thr Val Ser Thr Lys Arg 210 215 220Ser Gln Gln Thr Val Ile Pro Asn Ile Gly Ser Arg Pro Arg Ile Arg225 230 235 240Asn Ile Pro Ser Arg Ile Ser Ile Tyr Trp Thr Ile Val Lys Pro Gly 245 250 255Asp Ile Leu Leu Ile Asn Ser Thr Gly Asn Leu Ile Ala Pro Arg Gly 260 265 270Tyr Phe Lys Ile Arg Ser Gly Lys Ser Ser Ile Met Arg Ser Asp Ala 275 280 285Pro Ile Gly Lys Cys Asn Ser Glu Cys Ile Thr Pro Asn Gly Ser Ile 290 295 300Pro Asn Asp Lys Pro Phe Gln Asn Val Asn Arg Ile Thr Tyr Gly Ala305 310 315 320Cys Pro Arg Tyr Val Lys Gln Asn Thr Leu Lys Leu Ala Thr Gly Met 325 330 335Arg Asn Val Pro Glu Lys Gln Thr Arg Gly Ile Phe Gly Ala Ile Ala 340 345 350Gly Phe Ile Glu Asn Gly Trp Glu Gly Met Val Asp Gly Trp Tyr Gly 355 360 365Phe Arg His Gln Asn Ser Glu Gly Ile Gly Gln Ala Ala Asp Leu Lys 370 375 380Ser Thr Gln Ala Ala Ile Asn Gln Ile Asn Gly Lys Leu Asn Arg Leu385 390 395 400Ile Gly Lys Thr Asn Glu Lys Phe His Gln Ile Glu Lys Glu Phe Ser 405 410 415Glu Val Glu Gly Arg Ile Gln Asp Leu Glu Lys Tyr Val Glu Asp Thr 420 425 430Lys Ile Asp Leu Trp Ser Tyr Asn Ala Glu Leu Leu Val Ala Leu Glu 435 440 445Asn Gln His Thr Ile Asp Leu Thr Asp Ser Glu Met Asn Lys Leu Phe 450 455 460Glu Arg Thr Lys Lys Gln Leu Arg Glu Asn Ala Glu Asp Met Gly Asn465 470 475 480Gly Cys Phe Lys Ile Tyr His Lys Cys Asp Asn Ala Cys Ile Gly Ser 485 490 495Ile Arg Asn Gly Thr Tyr Asp His Asp Val Tyr Arg Asp Glu Ala Leu 500 505 510Asn Asn Arg Phe Gln Ile Lys Gly Val Glu Leu Lys Ser Gly Tyr Lys 515 520 525Asp Trp Ile Leu Trp Ile Ser Phe Ala Ile Ser Cys Phe Leu Leu Cys 530 535 540Val Ala Leu Leu Gly Phe Ile Met Trp Ala Cys Gln Lys Gly Asn Ile545 550 555 560Arg Cys Asn Ile Cys Ile 56552585PRTArtificial sequenceclone 778 of B/Malaysia/2506/2004 52Met Lys Ala Ile Ile Val Leu Leu Met Val Val Thr Ser Asn Ala Asp1 5 10 15Arg Ile Cys Thr Gly Ile Thr Ser Ser Asn Ser Pro His Val Val Lys 20 25 30Thr Ala Thr Gln Gly Glu Val Asn Val Thr Gly Val Ile Pro Leu Thr 35 40 45Thr Thr Pro Thr Lys Ser His Phe Ala Asn Leu Lys Gly Thr Glu Thr 50 55 60Arg Gly Lys Leu Cys Pro Lys Cys Leu Asn Cys Thr Asp Leu Asp Val65 70 75 80Ala Leu Gly Arg Pro Lys Cys Thr Gly Asn Ile Pro Ser Ala Arg Val 85 90 95Ser Ile Leu His Glu Val Arg Pro Val Thr Ser Gly Cys Phe Pro Ile 100 105 110Met His Asp Arg Thr Lys Ile Arg Gln Leu Pro Lys Leu Leu Arg Gly 115 120 125Tyr Glu His Ile Arg Leu Ser Thr His Asn Val Ile Asn Ala Glu Asn 130 135 140Ala Pro Gly Gly Pro Tyr Lys Ile Gly Thr Ser Gly Ser Cys Pro Asn145 150 155 160Val Thr Asn Gly Asn Gly Phe Phe Ala Thr Met Ala Trp Ala Val Pro 165 170 175Lys Asn Asp Asn Asn Lys Thr Ala Thr Asn Ser Leu Thr Ile Glu Val 180 185 190Pro Tyr Ile Cys Thr Glu Gly Glu Asp Gln Ile Thr Val Trp Gly Phe 195 200 205His Ser Asp Asn Glu Thr Gln Met Ala Lys Leu Tyr Gly Asp Ser Lys 210 215 220Pro Gln Lys Phe Thr Ser Ser Ala Asn Gly Val Thr Thr His Tyr Val225 230 235 240Ser Gln Ile Gly Gly Phe Pro Asn Gln Thr Glu Asp Gly Gly Leu Pro 245 250 255Gln Ser Gly Arg Ile Val Val Asp Tyr Met Val Gln Lys Ser Gly Lys 260 265 270Thr Gly Thr Ile Thr Tyr Gln Arg Gly Ile Leu Leu Pro Gln Lys Val 275 280 285Trp Cys Ala Ser Gly Arg Ser Lys Val Ile Lys Gly Ser Leu Pro Leu 290 295 300Ile Gly Glu Ala Asp Cys Leu His Glu Lys Tyr Gly Gly Leu Asn Lys305 310 315 320Ser Lys Pro Tyr Tyr Thr Gly Glu His Ala Lys Ala Ile Gly Asn Cys 325 330 335Pro Ile Trp Val Lys Thr Pro Leu Lys Leu Ala Asn Gly Thr Lys Tyr 340 345 350Arg Pro Pro Ala Lys Leu Leu Lys Glu Arg Gly Phe Phe Gly Ala Ile 355 360 365Ala Gly Phe Leu Glu Gly Gly Trp Glu Gly Met Ile Ala Gly Trp His 370 375 380Gly Tyr Thr Ser His Gly Ala His Gly Val Ala Val Ala Ala Asp Leu385 390 395 400Lys Ser Thr Gln Glu Ala Ile Asn Lys Ile Thr Lys Asn Leu Asn Ser 405 410 415Leu Ser Glu Leu Glu Val Lys Asn Leu Gln Arg Leu Ser Gly Ala Met 420 425 430Asp Glu Leu His Asn Glu Ile Leu Glu Leu Asp Glu Lys Val Asp Asp 435 440 445Leu Arg Ala Asp Thr Ile Ser Ser Gln Ile Glu Leu Ala Val Leu Leu 450 455 460Ser Asn Glu Gly Ile Ile Asn Ser Glu Asp Glu His Leu Leu Ala Leu465 470 475 480Glu Arg Lys Leu Lys Lys Met Leu Gly Pro Ser Ala Val Glu Ile Gly 485 490 495Asn Gly Cys Phe Glu Thr Lys His Lys Cys Asn Gln Thr Cys Leu Asp 500 505 510Arg Ile Ala Ala Gly Thr Phe Asp Ala Gly Glu Phe Ser Leu Pro Thr 515 520 525Phe Asp Ser Leu Asn Ile Thr Ala Ala Ser Leu Asn Asp Asp Gly Leu 530 535 540Asp Asn His Thr Ile Leu Leu Tyr Tyr Ser Thr Ala Ala Ser Ser Leu545 550 555 560Ala Val Thr Leu Met Ile Ala Ile Phe Val Val Tyr Met Val Ser Arg 565 570 575Asp Asn Val Ser Cys Ser Ile Cys Leu 580 58553584PRTArtificial sequenceclone 779 of B/Florida/4/2006 53Met Lys Ala Ile Ile Val Leu Leu Met Val Val Thr Ser Asn Ala Asp1 5 10 15Arg Ile Cys Thr Gly Ile Thr Ser Ser Asn Ser Pro His Val Val Lys 20 25 30Thr Ala Thr Gln Gly Glu Val Asn Val Thr Gly Val Ile Pro Leu Thr 35 40 45Thr Thr Pro Thr Lys Ser Tyr Phe Ala Asn Leu Lys Gly Thr Arg Thr 50 55 60Arg Gly Lys Leu Cys Pro Asp Cys Leu Asn Cys Thr Asp Leu Asp Val65 70 75 80Ala Leu Gly Arg Pro Met Cys Val Gly Thr Thr Pro Ser Ala Lys Ala 85 90 95Ser Ile Leu His Glu Val Lys Pro Val Thr Ser Gly Cys Phe Pro Ile 100 105 110Met His Asp Arg Thr Lys Ile Arg Gln Leu Pro Asn Leu Leu Arg Gly 115 120 125Tyr Glu Asn Ile Arg Leu Ser Thr Gln Asn Val Ile Asp Ala Glu Lys 130 135 140Ala Pro Gly Gly Pro Tyr Arg Leu Gly Thr Ser Gly Ser Cys Pro Asn145 150 155 160Ala Thr Ser Lys Ser Gly Phe Phe Ala Thr Met Ala Trp Ala Val Pro 165 170 175Lys Asp Asn Asn Lys Asn Ala Thr Asn Pro Leu Thr Val Glu Val Pro 180 185 190Tyr Ile Cys Thr Glu Gly Glu Asp Gln Ile Thr Val Trp Gly Phe His 195 200 205Ser Asp Asn Lys Thr Gln Met Lys Asn Leu Tyr Gly Asp Ser Asn Pro 210 215 220Gln Lys Phe Thr Ser Ser Ala Asn Gly Val Thr Thr His Tyr Val Ser225 230 235 240Gln Ile Gly Ser Phe Pro Asp Gln Thr Glu Asp Gly Gly Leu Pro Gln 245 250 255Ser Gly Arg Ile Val Val Asp Tyr Met Met Gln Lys Pro Gly Lys Thr 260 265 270Gly Thr Ile Val Tyr Gln Arg Gly Val Leu Leu Pro Gln Lys Val Trp 275 280 285Cys Ala Ser Gly Arg Ser Lys Val Ile Lys Gly Ser Leu Pro Leu Ile 290 295 300Gly Glu Ala Asp Cys Leu His Glu Lys Tyr Gly Gly Leu Asn Lys Ser305 310 315 320Lys Pro Tyr Tyr Thr Gly Glu His Ala Lys Ala Ile Gly Asn Cys Pro 325 330 335Ile Trp Val Lys Thr Pro Leu Lys Leu Ala Asn Gly Thr Lys Tyr Arg 340 345 350Pro Pro Ala Lys Leu Leu Lys Glu Arg Gly Phe Phe Gly Ala Ile Ala 355 360 365Gly Phe Leu Glu Gly Gly Trp Glu Gly Met Ile Ala Gly Trp His Gly 370 375

380Tyr Thr Ser His Gly Ala His Gly Val Ala Val Ala Ala Asp Leu Lys385 390 395 400Ser Thr Gln Glu Ala Ile Asn Lys Ile Thr Lys Asn Leu Asn Ser Leu 405 410 415Ser Glu Leu Glu Val Lys Asn Leu Gln Arg Leu Ser Gly Ala Met Asp 420 425 430Glu Leu His Asn Glu Ile Leu Glu Leu Asp Glu Lys Val Asp Asp Leu 435 440 445Arg Ala Asp Thr Ile Ser Ser Gln Ile Glu Leu Ala Val Leu Leu Ser 450 455 460Asn Glu Gly Ile Ile Asn Ser Glu Asp Glu His Leu Leu Ala Leu Glu465 470 475 480Arg Lys Leu Lys Lys Met Leu Gly Pro Ser Ala Val Glu Ile Gly Asn 485 490 495Gly Cys Phe Glu Thr Lys His Lys Cys Asn Gln Thr Cys Leu Asp Arg 500 505 510Ile Ala Ala Gly Thr Phe Asn Ala Gly Glu Phe Ser Leu Pro Thr Phe 515 520 525Asp Ser Leu Asn Ile Thr Ala Ala Ser Leu Asn Asp Asp Gly Leu Asp 530 535 540Asn His Thr Ile Leu Leu Tyr Tyr Ser Thr Ala Ala Ser Ser Leu Ala545 550 555 560Val Thr Leu Met Leu Ala Ile Phe Ile Val Tyr Met Val Ser Arg Asp 565 570 575Asn Val Ser Cys Ser Ile Cys Leu 58054562PRTArtificial sequenceclone 780 of A/Singapore/1/57 54Met Ala Ile Ile Tyr Leu Ile Leu Leu Phe Thr Ala Val Arg Gly Asp1 5 10 15Gln Ile Cys Ile Gly Tyr His Ala Asn Asn Ser Thr Glu Lys Val Asp 20 25 30Thr Ile Leu Glu Arg Asn Val Thr Val Thr His Ala Lys Asp Ile Leu 35 40 45Glu Lys Thr His Asn Gly Lys Leu Cys Lys Leu Asn Gly Ile Pro Pro 50 55 60Leu Glu Leu Gly Asp Cys Ser Ile Ala Gly Trp Leu Leu Gly Asn Pro65 70 75 80Glu Cys Asp Arg Leu Leu Ser Val Pro Glu Trp Ser Tyr Ile Met Glu 85 90 95Lys Glu Asn Pro Arg Asp Gly Leu Cys Tyr Pro Gly Ser Phe Asn Asp 100 105 110Tyr Glu Glu Leu Lys His Leu Leu Ser Ser Val Lys His Phe Glu Lys 115 120 125Val Lys Ile Leu Pro Lys Asp Arg Trp Thr Gln His Thr Thr Thr Gly 130 135 140Gly Ser Arg Ala Cys Ala Val Ser Gly Asn Pro Ser Phe Phe Arg Asn145 150 155 160Met Val Trp Leu Thr Lys Lys Glu Ser Asn Tyr Pro Val Ala Lys Gly 165 170 175Ser Tyr Asn Asn Thr Ser Gly Glu Gln Met Leu Ile Ile Trp Gly Val 180 185 190His His Pro Asn Asp Glu Thr Glu Gln Arg Thr Leu Tyr Gln Asn Val 195 200 205Gly Thr Tyr Val Ser Val Gly Thr Ser Thr Leu Asn Lys Arg Ser Thr 210 215 220Pro Asp Ile Ala Thr Arg Pro Lys Val Asn Gly Leu Gly Ser Arg Met225 230 235 240Glu Phe Ser Trp Thr Leu Leu Asp Met Trp Asp Thr Ile Asn Phe Glu 245 250 255Ser Thr Gly Asn Leu Ile Ala Pro Glu Tyr Gly Phe Lys Ile Ser Lys 260 265 270Arg Gly Ser Ser Gly Ile Met Lys Thr Glu Gly Thr Leu Glu Asn Cys 275 280 285Glu Thr Lys Cys Gln Thr Pro Leu Gly Ala Ile Asn Thr Thr Leu Pro 290 295 300Phe His Asn Val His Pro Leu Thr Ile Gly Glu Cys Pro Lys Tyr Val305 310 315 320Lys Ser Glu Lys Leu Val Leu Ala Thr Gly Leu Arg Asn Val Pro Gln 325 330 335Ile Glu Ser Arg Gly Leu Phe Gly Ala Ile Ala Gly Phe Ile Glu Gly 340 345 350Gly Trp Gln Gly Met Val Asp Gly Trp Tyr Gly Tyr His His Ser Asn 355 360 365Asp Gln Gly Ser Gly Tyr Ala Ala Asp Lys Glu Ser Thr Gln Lys Ala 370 375 380Phe Asp Gly Ile Thr Asn Lys Val Asn Ser Val Ile Glu Lys Met Asn385 390 395 400Thr Gln Phe Glu Ala Val Gly Lys Glu Phe Ser Asn Leu Glu Arg Arg 405 410 415Leu Glu Asn Leu Asn Lys Lys Met Glu Asp Gly Phe Leu Asp Val Trp 420 425 430Thr Tyr Asn Ala Glu Leu Leu Val Leu Met Glu Asn Glu Arg Thr Leu 435 440 445Asp Phe His Asp Ser Asn Val Lys Asn Leu Tyr Asp Lys Val Arg Met 450 455 460Gln Leu Arg Asp Asn Val Lys Glu Leu Gly Asn Gly Cys Phe Glu Phe465 470 475 480Tyr His Lys Cys Asp Asp Glu Cys Met Asn Ser Val Lys Asn Gly Thr 485 490 495Tyr Asp Tyr Pro Lys Tyr Glu Glu Glu Ser Lys Leu Asn Arg Asn Glu 500 505 510Ile Lys Gly Val Lys Leu Ser Ser Met Gly Val Tyr Gln Ile Leu Ala 515 520 525Ile Tyr Ala Thr Val Ala Gly Ser Leu Ser Leu Ala Ile Met Met Ala 530 535 540Gly Ile Ser Phe Trp Met Cys Ser Asn Gly Ser Leu Gln Cys Arg Ile545 550 555 560Cys Ile55567PRTArtificial sequenceclone 781 of A/Anhui/1/2005 55Met Glu Lys Ile Val Leu Leu Leu Ala Ile Val Ser Leu Val Lys Ser1 5 10 15Asp Gln Ile Cys Ile Gly Tyr His Ala Asn Asn Ser Thr Glu Gln Val 20 25 30Asp Thr Ile Met Glu Lys Asn Val Thr Val Thr His Ala Gln Asp Ile 35 40 45Leu Glu Lys Thr His Asn Gly Lys Leu Cys Asp Leu Asp Gly Val Lys 50 55 60Pro Leu Ile Leu Arg Asp Cys Ser Val Ala Gly Trp Leu Leu Gly Asn65 70 75 80Pro Met Cys Asp Glu Phe Ile Asn Val Pro Glu Trp Ser Tyr Ile Val 85 90 95Glu Lys Ala Asn Pro Ala Asn Asp Leu Cys Tyr Pro Gly Asn Phe Asn 100 105 110Asp Tyr Glu Glu Leu Lys His Leu Leu Ser Arg Ile Asn His Phe Glu 115 120 125Lys Ile Gln Ile Ile Pro Lys Ser Ser Trp Ser Asp His Glu Ala Ser 130 135 140Ser Gly Val Ser Ser Ala Cys Pro Tyr Gln Gly Thr Pro Ser Phe Phe145 150 155 160Arg Asn Val Val Trp Leu Ile Lys Lys Asn Asn Thr Tyr Pro Thr Ile 165 170 175Lys Arg Ser Tyr Asn Asn Thr Asn Gln Glu Asp Leu Leu Ile Leu Trp 180 185 190Gly Ile His His Ser Asn Asp Ala Ala Glu Gln Thr Lys Leu Tyr Gln 195 200 205Asn Pro Thr Thr Tyr Ile Ser Val Gly Thr Ser Thr Leu Asn Gln Arg 210 215 220Leu Val Pro Lys Ile Ala Thr Arg Ser Lys Val Asn Gly Gln Ser Gly225 230 235 240Arg Met Asp Phe Phe Trp Thr Ile Leu Lys Pro Asn Asp Ala Ile Asn 245 250 255Phe Glu Ser Asn Gly Asn Phe Ile Ala Pro Glu Tyr Ala Tyr Lys Ile 260 265 270Val Lys Lys Gly Asp Ser Ala Ile Val Lys Ser Glu Val Glu Tyr Gly 275 280 285Asn Cys Asn Thr Lys Cys Gln Thr Pro Ile Gly Ala Ile Asn Ser Ser 290 295 300Met Pro Phe His Asn Ile His Pro Leu Thr Ile Gly Glu Cys Pro Lys305 310 315 320Tyr Val Lys Ser Asn Lys Leu Val Leu Ala Thr Gly Leu Arg Asn Ser 325 330 335Pro Leu Arg Glu Arg Arg Arg Lys Arg Gly Leu Phe Gly Ala Ile Ala 340 345 350Gly Phe Ile Glu Gly Gly Trp Gln Gly Met Val Asp Gly Trp Tyr Gly 355 360 365Tyr His His Ser Asn Glu Gln Gly Ser Gly Tyr Ala Ala Asp Lys Glu 370 375 380Ser Thr Gln Lys Ala Ile Asp Gly Val Thr Asn Lys Val Asn Ser Ile385 390 395 400Ile Asp Lys Met Asn Thr Gln Phe Glu Ala Val Gly Arg Glu Phe Asn 405 410 415Asn Leu Glu Arg Arg Ile Glu Asn Leu Asn Lys Lys Met Glu Asp Gly 420 425 430Phe Leu Asp Val Trp Thr Tyr Asn Ala Glu Leu Leu Val Leu Met Glu 435 440 445Asn Glu Arg Thr Leu Asp Phe His Asp Ser Asn Val Lys Asn Leu Tyr 450 455 460Asp Lys Val Arg Leu Gln Leu Arg Asp Asn Ala Lys Glu Leu Gly Asn465 470 475 480Gly Cys Phe Glu Phe Tyr His Lys Cys Asp Asn Glu Cys Met Glu Ser 485 490 495Val Arg Asn Gly Thr Tyr Asp Tyr Pro Gln Tyr Ser Glu Glu Ala Arg 500 505 510Leu Lys Arg Glu Glu Ile Ser Gly Val Lys Leu Glu Ser Ile Gly Thr 515 520 525Tyr Gln Ile Leu Ser Ile Tyr Ser Thr Val Ala Ser Ser Leu Ala Leu 530 535 540Ala Ile Met Val Ala Gly Leu Ser Leu Trp Met Cys Ser Asn Gly Ser545 550 555 560Leu Gln Cys Arg Ile Cys Ile 56556568PRTArtificial sequenceclone 782 of A/Vietnam/1194/2004 56Met Glu Lys Ile Val Leu Leu Phe Ala Ile Val Ser Leu Val Lys Ser1 5 10 15Asp Gln Ile Cys Ile Gly Tyr His Ala Asn Asn Ser Thr Glu Gln Val 20 25 30Asp Thr Ile Met Glu Lys Asn Val Thr Val Thr His Ala Gln Asp Ile 35 40 45Leu Glu Lys Thr His Asn Gly Lys Leu Cys Asp Leu Asp Gly Val Lys 50 55 60Pro Leu Ile Leu Arg Asp Cys Ser Val Ala Gly Trp Leu Leu Gly Asn65 70 75 80Pro Met Cys Asp Glu Phe Ile Asn Val Pro Glu Trp Ser Tyr Ile Val 85 90 95Glu Lys Ala Asn Pro Val Asn Asp Leu Cys Tyr Pro Gly Asp Phe Asn 100 105 110Asp Tyr Glu Glu Leu Lys His Leu Leu Ser Arg Ile Asn His Phe Glu 115 120 125Lys Ile Gln Ile Ile Pro Lys Ser Ser Trp Ser Ser His Glu Ala Ser 130 135 140Leu Gly Val Ser Ser Ala Cys Pro Tyr Gln Gly Lys Ser Ser Phe Phe145 150 155 160Arg Asn Val Val Trp Leu Ile Lys Lys Asn Ser Thr Tyr Pro Thr Ile 165 170 175Lys Arg Ser Tyr Asn Asn Thr Asn Gln Glu Asp Leu Leu Val Leu Trp 180 185 190Gly Ile His His Pro Asn Asp Ala Ala Glu Gln Thr Lys Leu Tyr Gln 195 200 205Asn Pro Thr Thr Tyr Ile Ser Val Gly Thr Ser Thr Leu Asn Gln Arg 210 215 220Leu Val Pro Arg Ile Ala Thr Arg Ser Lys Val Asn Gly Gln Ser Gly225 230 235 240Arg Met Glu Phe Phe Trp Thr Ile Leu Lys Pro Asn Asp Ala Ile Asn 245 250 255Phe Glu Ser Asn Gly Asn Phe Ile Ala Pro Glu Tyr Ala Tyr Lys Ile 260 265 270Val Lys Lys Gly Asp Ser Thr Ile Met Lys Ser Glu Leu Glu Tyr Gly 275 280 285Asn Cys Asn Thr Lys Cys Gln Thr Pro Met Gly Ala Ile Asn Ser Ser 290 295 300Met Pro Phe His Asn Ile His Pro Leu Thr Ile Gly Glu Cys Pro Lys305 310 315 320Tyr Val Lys Ser Asn Arg Leu Val Leu Ala Thr Gly Leu Arg Asn Ser 325 330 335Pro Gln Arg Glu Arg Arg Arg Lys Lys Arg Gly Leu Phe Gly Ala Ile 340 345 350Ala Gly Phe Ile Glu Gly Gly Trp Gln Gly Met Val Asp Gly Trp Tyr 355 360 365Gly Tyr His His Ser Asn Glu Gln Gly Ser Gly Tyr Ala Ala Asp Lys 370 375 380Glu Ser Thr Gln Lys Ala Ile Asp Gly Val Thr Asn Lys Val Asn Ser385 390 395 400Ile Ile Asp Lys Met Asn Thr Gln Phe Glu Ala Val Gly Arg Glu Phe 405 410 415Asn Asn Leu Glu Arg Arg Ile Glu Asn Leu Asn Lys Lys Met Glu Asp 420 425 430Gly Phe Leu Asp Val Trp Thr Tyr Asn Ala Glu Leu Leu Val Leu Met 435 440 445Glu Asn Glu Arg Thr Leu Asp Phe His Asp Ser Asn Val Lys Asn Leu 450 455 460Tyr Asp Lys Val Arg Leu Gln Leu Arg Asp Asn Ala Lys Glu Leu Gly465 470 475 480Asn Gly Cys Phe Glu Phe Tyr His Lys Cys Asp Asn Glu Cys Met Glu 485 490 495Ser Val Arg Asn Gly Thr Tyr Asp Tyr Pro Gln Tyr Ser Glu Glu Ala 500 505 510Arg Leu Lys Arg Glu Glu Ile Ser Gly Val Lys Leu Glu Ser Ile Gly 515 520 525Ile Tyr Gln Ile Leu Ser Ile Tyr Ser Thr Val Ala Ser Ser Leu Ala 530 535 540Leu Ala Ile Met Val Ala Gly Leu Ser Leu Trp Met Cys Ser Asn Gly545 550 555 560Ser Leu Gln Cys Arg Ile Cys Ile 56557566PRTArtificial sequenceclone 783 of A/Teal/HongKong/W312/97 57Met Ile Ala Ile Ile Val Ile Ala Ile Leu Ala Ala Ala Gly Lys Ser1 5 10 15Asp Lys Ile Cys Ile Gly Tyr His Ala Asn Asn Ser Thr Thr Gln Val 20 25 30Asp Thr Ile Leu Glu Lys Asn Val Thr Val Thr His Ser Ile Glu Leu 35 40 45Leu Glu Asn Gln Lys Glu Glu Arg Phe Cys Lys Ile Leu Asn Lys Ala 50 55 60Pro Leu Asp Leu Arg Glu Cys Thr Ile Glu Gly Trp Ile Leu Gly Asn65 70 75 80Pro Gln Cys Asp Leu Leu Leu Gly Asp Gln Ser Trp Ser Tyr Ile Val 85 90 95Glu Arg Pro Thr Ala Gln Asn Gly Ile Cys Tyr Pro Gly Thr Leu Asn 100 105 110Glu Val Glu Glu Leu Arg Ala Leu Ile Gly Ser Gly Glu Arg Val Glu 115 120 125Arg Phe Glu Met Phe Pro Gln Ser Thr Trp Gln Gly Val Asp Thr Asn 130 135 140Ser Gly Thr Thr Arg Ser Cys Pro Tyr Ser Thr Gly Ala Ser Phe Tyr145 150 155 160Arg Asn Leu Leu Trp Ile Ile Lys Thr Lys Thr Ala Glu Tyr Pro Val 165 170 175Ile Lys Gly Ile Tyr Asn Asn Thr Gly Thr Gln Pro Ile Leu Tyr Phe 180 185 190Trp Gly Val His His Pro Pro Asn Thr Asp Glu Gln Asp Thr Leu Tyr 195 200 205Gly Ser Gly Asp Arg Tyr Val Arg Met Gly Thr Glu Ser Met Asn Phe 210 215 220Ala Lys Ser Pro Glu Ile Ala Ala Arg Pro Ala Val Asn Gly Gln Arg225 230 235 240Gly Arg Ile Asp Tyr Tyr Trp Ser Val Leu Lys Pro Gly Glu Thr Leu 245 250 255Asn Val Glu Ser Asn Gly Asn Leu Ile Ala Pro Trp Tyr Ala Tyr Lys 260 265 270Phe Val Asn Thr Asn Ser Lys Gly Ala Val Phe Arg Ser Asp Leu Pro 275 280 285Ile Glu Asn Cys Asp Ala Thr Cys Gln Thr Ile Ala Gly Val Leu Arg 290 295 300Thr Asn Lys Thr Phe Gln Asn Val Ser Pro Leu Trp Ile Gly Glu Cys305 310 315 320Pro Lys Tyr Val Lys Ser Glu Ser Leu Arg Leu Ala Thr Gly Leu Arg 325 330 335Asn Val Pro Gln Ile Glu Thr Arg Gly Leu Phe Gly Ala Ile Ala Gly 340 345 350Phe Ile Glu Gly Gly Trp Thr Gly Met Ile Asp Gly Trp Tyr Gly Tyr 355 360 365His His Glu Asn Ser Gln Gly Ser Gly Tyr Ala Ala Asp Arg Glu Ser 370 375 380Thr Gln Lys Ala Val Asn Arg Ile Thr Asn Lys Val Asn Ser Ile Ile385 390 395 400Asn Lys Met Asn Thr Gln Phe Glu Ala Val Asp His Glu Phe Ser Asn 405 410 415Leu Glu Arg Arg Ile Asp Asn Leu Asn Lys Arg Met Gln Asp Gly Phe 420 425 430Leu Asp Val Trp Thr Tyr Asn Ala Glu Leu Leu Val Leu Leu Glu Asn 435 440 445Glu Arg Thr Leu Asp Met His Asp Ala Asn Val Lys Asn Leu His Glu 450 455 460Lys Val Lys Ser Gln Leu Arg Asp Asn Ala Thr Ile Leu Gly Asn Gly465 470 475 480Cys Phe Glu Phe Trp His Lys Cys Asp Asn Glu Cys Ile Glu Ser Val 485 490 495Lys Asn Gly Thr Tyr Asp Tyr Pro Lys Tyr Gln Thr Glu Ser Lys Leu 500 505 510Asn Arg Leu Lys Ile Glu Ser Val Lys Leu Glu Asn Leu Gly Val Tyr 515 520 525Gln Ile Leu Ala Ile Tyr Ser Thr Val Ser Ser Ser Leu Val Leu Val 530 535 540Gly Leu Ile Met Ala

Met Gly Leu Trp Met Cys Ser Asn Gly Ser Met545 550 555 560Gln Cys Arg Ile Cys Ile 56558570PRTArtificial sequenceclone 784 of A/Equine/Prague/56 58Met Asn Thr Gln Ile Leu Ile Leu Ala Thr Ser Ala Phe Phe Tyr Val1 5 10 15Arg Ala Asp Lys Ile Cys Leu Gly His His Ala Val Ser Asn Gly Thr 20 25 30Lys Val Asp Thr Leu Thr Glu Lys Gly Ile Glu Val Val Asn Ala Thr 35 40 45Glu Thr Val Glu Gln Thr Asn Ile Pro Lys Ile Cys Ser Lys Gly Lys 50 55 60Gln Thr Val Asp Leu Gly Gln Cys Gly Leu Leu Gly Thr Val Ile Gly65 70 75 80Pro Pro Gln Cys Asp Gln Phe Leu Glu Phe Ser Ala Asn Leu Ile Val 85 90 95Glu Arg Arg Glu Gly Asn Asp Ile Cys Tyr Pro Gly Lys Phe Asp Asn 100 105 110Glu Glu Thr Leu Arg Lys Ile Leu Arg Lys Ser Gly Gly Ile Lys Lys 115 120 125Glu Asn Met Gly Phe Thr Tyr Thr Gly Val Arg Thr Asn Gly Glu Thr 130 135 140Ser Ala Cys Arg Arg Ser Arg Ser Ser Phe Tyr Ala Glu Met Lys Trp145 150 155 160Leu Leu Ser Ser Thr Asp Asn Gly Thr Phe Pro Gln Met Thr Lys Ser 165 170 175Tyr Lys Asn Thr Lys Lys Val Pro Ala Leu Ile Ile Trp Gly Ile His 180 185 190His Ser Gly Ser Thr Thr Glu Gln Thr Arg Leu Tyr Gly Ser Gly Asn 195 200 205Lys Leu Ile Thr Val Trp Ser Ser Lys Tyr Gln Gln Ser Phe Val Pro 210 215 220Asn Pro Gly Pro Arg Pro Gln Met Asn Gly Gln Ser Gly Arg Ile Asp225 230 235 240Phe His Trp Leu Met Leu Asp Pro Asn Asp Thr Val Thr Phe Ser Phe 245 250 255Asn Gly Ala Phe Ile Ala Pro Asp Arg Ala Ser Phe Leu Arg Gly Lys 260 265 270Ser Leu Gly Ile Gln Ser Asp Ala Gln Leu Asp Asn Asn Cys Glu Gly 275 280 285Glu Cys Tyr His Ile Gly Gly Thr Ile Ile Ser Asn Leu Pro Phe Gln 290 295 300Asn Ile Asn Ser Arg Ala Ile Gly Lys Cys Pro Arg Tyr Val Lys Gln305 310 315 320Lys Ser Leu Met Leu Ala Thr Gly Met Lys Asn Val Pro Glu Ala Pro 325 330 335Ala His Lys Gln Leu Thr His His Met Arg Lys Lys Arg Gly Leu Phe 340 345 350Gly Ala Ile Ala Gly Phe Ile Glu Asn Gly Trp Glu Gly Leu Ile Asp 355 360 365Gly Trp Tyr Gly Tyr Lys His Gln Asn Ala Gln Gly Glu Gly Thr Ala 370 375 380Ala Asp Tyr Lys Ser Thr Gln Ser Ala Ile Asn Gln Ile Thr Gly Lys385 390 395 400Leu Asn Arg Leu Ile Glu Lys Thr Asn Gln Gln Phe Glu Leu Ile Asp 405 410 415Asn Glu Phe Asn Glu Ile Glu Lys Gln Ile Gly Asn Val Ile Asn Trp 420 425 430Thr Arg Asp Ser Ile Ile Glu Val Trp Ser Tyr Asn Ala Glu Phe Leu 435 440 445Val Ala Val Glu Asn Gln His Thr Ile Asp Leu Thr Asp Ser Glu Met 450 455 460Asn Lys Leu Tyr Glu Lys Val Arg Arg Gln Leu Arg Glu Asn Ala Glu465 470 475 480Glu Asp Gly Asn Gly Cys Phe Glu Ile Phe His Gln Cys Asp Asn Asp 485 490 495Cys Met Ala Ser Ile Arg Asn Asn Thr Tyr Asp His Lys Lys Tyr Arg 500 505 510Lys Glu Ala Ile Gln Asn Arg Ile Gln Ile Asp Ala Val Lys Leu Ser 515 520 525Ser Gly Tyr Lys Asp Ile Ile Leu Trp Phe Ser Phe Gly Ala Ser Cys 530 535 540Phe Leu Phe Leu Ala Ile Ala Met Gly Leu Val Phe Ile Cys Ile Lys545 550 555 560Asn Gly Asn Met Arg Cys Thr Ile Cys Ile 565 57059560PRTArtificial sequenceclone 785 of A/HongKong/1073/99 59Met Glu Thr Ile Ser Leu Ile Thr Ile Leu Leu Val Val Thr Ala Ser1 5 10 15Asn Ala Asp Lys Ile Cys Ile Gly His Gln Ser Thr Asn Ser Thr Glu 20 25 30Thr Val Asp Thr Leu Thr Glu Thr Asn Val Pro Val Thr His Ala Lys 35 40 45Glu Leu Leu His Thr Glu His Asn Gly Met Leu Cys Ala Thr Ser Leu 50 55 60Gly His Pro Leu Ile Leu Asp Thr Cys Thr Ile Glu Gly Leu Val Tyr65 70 75 80Gly Asn Pro Ser Cys Asp Leu Leu Leu Gly Gly Arg Glu Trp Ser Tyr 85 90 95Ile Val Glu Arg Ser Ser Ala Val Asn Gly Thr Cys Tyr Pro Gly Asn 100 105 110Val Glu Asn Leu Glu Glu Leu Arg Thr Leu Phe Ser Ser Ala Ser Ser 115 120 125Tyr Gln Arg Ile Gln Ile Phe Pro Asp Thr Thr Trp Asn Val Thr Tyr 130 135 140Thr Gly Thr Ser Arg Ala Cys Ser Gly Ser Phe Tyr Arg Ser Met Arg145 150 155 160Trp Leu Thr Gln Lys Ser Gly Phe Tyr Pro Val Gln Asp Ala Gln Tyr 165 170 175Thr Asn Asn Arg Gly Lys Ser Ile Leu Phe Val Trp Gly Ile His His 180 185 190Pro Pro Thr Tyr Thr Glu Gln Thr Asn Leu Tyr Ile Arg Asn Asp Thr 195 200 205Thr Thr Ser Val Thr Thr Glu Asp Leu Asn Arg Thr Phe Lys Pro Val 210 215 220Ile Gly Pro Arg Pro Leu Val Asn Gly Leu Gln Gly Arg Ile Asp Tyr225 230 235 240Tyr Trp Ser Val Leu Lys Pro Gly Gln Thr Leu Arg Val Arg Ser Asn 245 250 255Gly Asn Leu Ile Ala Pro Trp Tyr Gly His Val Leu Ser Gly Gly Ser 260 265 270His Gly Arg Ile Leu Lys Thr Asp Leu Lys Gly Gly Asn Cys Val Val 275 280 285Gln Cys Gln Thr Glu Lys Gly Gly Leu Asn Ser Thr Leu Pro Phe His 290 295 300Asn Ile Ser Lys Tyr Ala Phe Gly Thr Cys Pro Lys Tyr Val Arg Val305 310 315 320Asn Ser Leu Lys Leu Ala Val Gly Leu Arg Asn Val Pro Ala Arg Ser 325 330 335Ser Arg Gly Leu Phe Gly Ala Ile Ala Gly Phe Ile Glu Gly Gly Trp 340 345 350Pro Gly Leu Val Ala Gly Trp Tyr Gly Phe Gln His Ser Asn Asp Gln 355 360 365Gly Val Gly Met Ala Ala Asp Arg Asp Ser Thr Gln Lys Ala Ile Asp 370 375 380Lys Ile Thr Ser Lys Val Asn Asn Ile Val Asp Lys Met Asn Lys Gln385 390 395 400Tyr Glu Ile Ile Asp His Glu Phe Ser Glu Val Glu Thr Arg Leu Asn 405 410 415Met Ile Asn Asn Lys Ile Asp Asp Gln Ile Gln Asp Val Trp Ala Tyr 420 425 430Asn Ala Glu Leu Leu Val Leu Leu Glu Asn Gln Lys Thr Leu Asp Glu 435 440 445His Asp Ala Asn Val Asn Asn Leu Tyr Asn Lys Val Lys Arg Ala Leu 450 455 460Gly Ser Asn Ala Met Glu Asp Gly Lys Gly Cys Phe Glu Leu Tyr His465 470 475 480Lys Cys Asp Asp Gln Cys Met Glu Thr Ile Arg Asn Gly Thr Tyr Asn 485 490 495Arg Arg Lys Tyr Arg Glu Glu Ser Arg Leu Glu Arg Gln Lys Ile Glu 500 505 510Gly Val Lys Leu Glu Ser Glu Gly Thr Tyr Lys Ile Leu Thr Ile Tyr 515 520 525Ser Thr Val Ala Ser Ser Leu Val Leu Ala Met Gly Phe Ala Ala Phe 530 535 540Leu Phe Trp Ala Met Ser Asn Gly Ser Cys Arg Cys Asn Ile Cys Ile545 550 555 560603111DNAArtificial sequenceConstruct 660 from A/Indonesia/5/2005 60agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tggagaaaat agtgcttctt 1020cttgcaatag tcagtcttgt taaaagtgat cagatttgca ttggttacca tgcaaacaat 1080tcaacagagc aggttgacac aatcatggaa aagaacgtta ctgttacaca tgcccaagac 1140atactggaaa agacacacaa cgggaagctc tgcgatctag atggagtgaa gcctctaatt 1200ttaagagatt gtagtgtagc tggatggctc ctcgggaacc caatgtgtga cgaattcatc 1260aatgtaccgg aatggtctta catagtggag aaggccaatc caaccaatga cctctgttac 1320ccagggagtt tcaacgacta tgaagaactg aaacacctat tgagcagaat aaaccatttt 1380gagaaaattc aaatcatccc caaaagttct tggtccgatc atgaagcctc atcaggagtt 1440agctcagcat gtccatacct gggaagtccc tcctttttta gaaatgtggt atggcttatc 1500aaaaagaaca gtacataccc aacaataaag aaaagctaca ataataccaa ccaagaggat 1560cttttggtac tgtggggaat tcaccatcct aatgatgcgg cagagcagac aaggctatat 1620caaaacccaa ccacctatat ttccattggg acatcaacac taaaccagag attggtacca 1680aaaatagcta ctagatccaa agtaaacggg caaagtggaa ggatggagtt cttctggaca 1740attttaaaac ctaatgatgc aatcaacttc gagagtaatg gaaatttcat tgctccagaa 1800tatgcataca aaattgtcaa gaaaggggac tcagcaatta tgaaaagtga attggaatat 1860ggtaactgca acaccaagtg tcaaactcca atgggggcga taaactctag tatgccattc 1920cacaacatac accctctcac catcggggaa tgccccaaat atgtgaaatc aaacagatta 1980gtccttgcaa cagggctcag aaatagccct caaagagaga gcagaagaaa aaagagagga 2040ctatttggag ctatagcagg ttttatagag ggaggatggc agggaatggt agatggttgg 2100tatgggtacc accatagcaa tgagcagggg agtgggtacg ctgcagacaa agaatccact 2160caaaaggcaa tagatggagt caccaataag gtcaactcaa tcattgacaa aatgaacact 2220cagtttgagg ccgttggaag ggaatttaat aacttagaaa ggagaataga gaatttaaac 2280aagaagatgg aagacgggtt tctagatgtc tggacttata atgccgaact tctggttctc 2340atggaaaatg agagaactct agactttcat gactcaaatg ttaagaacct ctacgacaag 2400gtccgactac agcttaggga taatgcaaag gagctgggta acggttgttt cgagttctat 2460cacaaatgtg ataatgaatg tatggaaagt ataagaaacg gaacgtacaa ctatccgcag 2520tattcagaag aagcaagatt aaaaagagag gaaataagtg gggtaaaatt ggaatcaata 2580ggaacttacc aaatactgtc aatttattca acagtggcga gttccctagc actggcaatc 2640atgatggctg gtctatcttt atggatgtgc tccaatggat cgttacaatg cagaatttgc 2700atttaagagc tctaagttaa aatgcttctt cgtctcctat ttataatatg gtttgttatt 2760gttaattttg ttcttgtaga agagcttaat taatcgttgt tgttatgaaa tactatttgt 2820atgagatgaa ctggtgtaat gtaattcatt tacataagtg gagtcagaat cagaatgttt 2880cctccataac taactagaca tgaagacctg ccgcgtacaa ttgtcttata tttgaacaac 2940taaaattgaa catcttttgc cacaacttta taagtggtta atatagctca aatatatggt 3000caagttcaat agattaataa tggaaatatc agttatcgaa attcattaac aatcaactta 3060acgttattaa ctactaattt tatatcatcc cctttgataa atgatagtac a 3111613123DNAArtificial sequenceConstruct 540 from A/New Caledonia/20/1999 61agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tggcgaaaaa cgttgcgatt 1020ttcggcttat tgttttctct tcttgtgttg gttccttctc agatcttcgc tgacacaata 1080tgtataggct accatgccaa caactcaacc gacactgttg acacagtact tgagaagaat 1140gtgacagtga cacactctgt caacctactt gaggacagtc acaatggaaa actatgtcta 1200ctaaaaggaa tagccccact acaattgggt aattgcagcg ttgccggatg gatcttagga 1260aacccagaat gcgaattact gatttccaag gaatcatggt cctacattgt agaaacacca 1320aatcctgaga atggaacatg ttacccaggg tatttcgccg actatgagga actgagggag 1380caattgagtt cagtatcttc atttgagaga ttcgaaatat tccccaaaga aagctcatgg 1440cccaaccaca ccgtaaccgg agtatcagca tcatgctccc ataatgggaa aagcagtttt 1500tacagaaatt tgctatggct gacggggaag aatggtttgt acccaaacct gagcaagtcc 1560tatgtaaaca acaaagagaa agaagtcctt gtactatggg gtgttcatca cccgcctaac 1620atagggaacc aaagggcact ctatcataca gaaaatgctt atgtctctgt agtgtcttca 1680cattatagca gaagattcac cccagaaata gccaaaagac ccaaagtaag agatcaggaa 1740ggaagaatca actactactg gactctgctg gaacctgggg atacaataat atttgaggca 1800aatggaaatc taatagcgcc atggtatgct tttgcactga gtagaggctt tggatcagga 1860atcatcacct caaatgcacc aatggatgaa tgtgatgcga agtgtcaaac acctcaggga 1920gctataaaca gcagtcttcc tttccagaat gtacacccag tcacaatagg agagtgtcca 1980aagtatgtca ggagtgcaaa attaaggatg gttacaggac taaggaacat cccatccatt 2040caatccagag gtttgtttgg agccattgcc ggtttcattg aaggggggtg gactggaatg 2100gtagatgggt ggtatggtta tcatcatcag aatgagcaag gatctggcta tgctgcagat 2160caaaaaagta cacaaaatgc cattaacggg attacaaaca aggtcaattc tgtaattgag 2220aaaatgaaca ctcaattcac agctgtgggc aaagagttca acaaattgga aagaaggatg 2280gaaaacttaa ataaaaaagt tgatgatggg tttctagaca tttggacata taatgcagaa 2340ttgttggttc tactggaaaa tgaaaggact ttggatttcc atgactccaa tgtgaagaat 2400ctgtatgaga aagtaaaaag ccaattaaag aataatgcca aagaaatagg aaacgggtgt 2460tttgagttct atcacaagtg taacaatgaa tgcatggaga gtgtgaaaaa tggtacctat 2520gactatccaa aatattccga agaatcaaag ttaaacaggg agaaaattga tggagtgaaa 2580ttggaatcaa tgggagtata ccagattctg gcgatctact caactgtcgc cagttccctg 2640gttcttttgg tctccctggg ggcaatcagc ttctggatgt gttccaatgg gtctttgcag 2700tgtagaatat gcatctaaga gctctaagtt aaaatgcttc ttcgtctcct atttataata 2760tggtttgtta ttgttaattt tgttcttgta gaagagctta attaatcgtt gttgttatga 2820aatactattt gtatgagatg aactggtgta atgtaattca tttacataag tggagtcaga 2880atcagaatgt ttcctccata actaactaga catgaagacc tgccgcgtac aattgtctta 2940tatttgaaca actaaaattg aacatctttt gccacaactt tataagtggt taatatagct 3000caaatatatg gtcaagttca atagattaat aatggaaata tcagttatcg aaattcatta 3060acaatcaact taacgttatt aactactaat tttatatcat cccctttgat aaatgatagt 3120aca 3123623088DNAArtificial sequenceConstruct 774 of A/Brisbane/59/2007 62ctggtatatt tatatgttgt caaataactc aaaaaccata aaagtttaag ttagcaagtg 60tgtacatttt tacttgaaca aaaatattca cctactactg ttataaatca ttattaaaca 120ttagagtaaa gaaatatgga tgataagaac aagagtagtg atattttgac aacaattttg 180ttgcaacatt tgagaaaatt ttgttgttct ctcttttcat tggtcaaaaa caatagagag 240agaaaaagga agagggagaa taaaaacata atgtgagtat gagagagaaa gttgtacaaa 300agttgtacca aaatagttgt acaaatatca ttgaggaatt tgacaaaagc tacacaaata 360agggttaatt gctgtaaata aataaggatg acgcattaga gagatgtacc attagagaat 420ttttggcaag tcattaaaaa gaaagaataa attattttta aaattaaaag ttgagtcatt 480tgattaaaca tgtgattatt taatgaattg atgaaagagt tggattaaag ttgtattagt 540aattagaatt tggtgtcaaa tttaatttga catttgatct tttcctatat attgccccat 600agagtcagtt aactcatttt tatatttcat agatcaaata agagaaataa cggtatatta 660atccctccaa aaaaaaaaaa cggtatattt actaaaaaat ctaagccacg taggaggata 720acaggatccc cgtaggagga taacatccaa tccaaccaat cacaacaatc ctgatgagat 780aacccacttt aagcccacgc atctgtggca catctacatt atctaaatca cacattcttc 840cacacatctg agccacacaa aaaccaatcc acatctttat cacccattct ataaaaaatc 900acactttgtg agtctacact ttgattccct tcaaacacat acaaagagaa gagactaatt 960aattaattaa tcatcttgag agaaaatgaa agtaaaacta ctggtcctgt tatgcacatt 1020tacagctaca tatgcagaca caatatgtat aggctaccat gctaacaact cgaccgacac 1080tgttgacaca gtacttgaaa agaatgtgac agtgacacac tctgtcaacc tgcttgagaa 1140cagtcacaat ggaaaactat gtctattaaa aggaatagcc ccactacaat tgggtaattg 1200cagcgttgcc gggtggatct taggaaaccc agaatgcgaa ttactgattt ccaaggagtc 1260atggtcctac attgtagaaa aaccaaatcc tgagaatgga acatgttacc cagggcattt 1320cgctgactat gaggaactga gggagcaatt gagttcagta tcttcatttg agaggttcga 1380aatattcccc aaagaaagct catggcccaa ccacaccgta accggagtgt cagcatcatg 1440ctcccataat ggggaaagca

gtttttacag aaatttgcta tggctgacgg ggaagaatgg 1500tttgtaccca aacctgagca agtcctatgc aaacaacaaa gaaaaagaag tccttgtact 1560atggggtgtt catcacccgc caaacatagg tgaccaaaag gccctctatc atacagaaaa 1620tgcttatgtc tctgtagtgt cttcacatta tagcagaaaa ttcaccccag aaatagccaa 1680aagacccaaa gtaagagatc aagaaggaag aatcaattac tactggactc tgcttgaacc 1740cggggataca ataatatttg aggcaaatgg aaatctaata gcgccaagat atgctttcgc 1800actgagtaga ggctttggat caggaatcat caactcaaat gcaccaatgg ataaatgtga 1860tgcgaagtgc caaacacctc agggagctat aaacagcagt cttcctttcc agaacgtaca 1920cccagtcaca ataggagagt gtccaaagta tgtcaggagt gcaaaattaa ggatggttac 1980aggactaagg aacatcccat ccattcaatc cagaggtttg tttggagcca ttgccggttt 2040cattgaaggg gggtggactg gaatggtaga tggttggtat ggttatcatc atcagaatga 2100gcaaggatct ggctatgctg cagatcaaaa aagcacacaa aatgccatta atgggattac 2160aaacaaggtc aattctgtaa ttgagaaaat gaacactcaa ttcacagcag tgggcaaaga 2220gttcaacaaa ttggaaagaa ggatggaaaa cttgaataaa aaagttgatg atgggtttat 2280agacatttgg acatataatg cagaactgtt ggttctactg gaaaatgaaa ggactttgga 2340tttccatgac tccaatgtga agaatctgta tgagaaagta aaaagccagt taaagaataa 2400tgctaaagaa ataggaaatg ggtgttttga gttctatcac aagtgtaacg atgaatgcat 2460ggagagtgta aagaatggaa cttatgacta tccaaaatat tccgaagaat caaagttaaa 2520cagggagaaa attgatggag tgaaattgga atcaatggga gtctatcaga ttctggcgat 2580ctactcaaca gtcgccagtt ctctggttct tttggtctcc ctgggggcaa tcagcttctg 2640gatgtgttcc aatgggtctt tacagtgtag aatatgcatc taagagctct aagttaaaat 2700gcttcttcgt ctcctattta taatatggtt tgttattgtt aattttgttc ttgtagaaga 2760gcttaattaa tcgttgttgt tatgaaatac tatttgtatg agatgaactg gtgtaatgta 2820attcatttac ataagtggag tcagaatcag aatgtttcct ccataactaa ctagacatga 2880agacctgccg cgtacaattg tcttatattt gaacaactaa aattgaacat cttttgccac 2940aactttataa gtggttaata tagctcaaat atatggtcaa gttcaataga ttaataatgg 3000aaatatcagt tatcgaaatt cattaacaat caacttaacg ttattaacta ctaattttat 3060atcatcccct ttgataaatg atagtaca 3088633102DNAArtificial sequenceconstruct 775 of A/Solomon Islands/3/2006 63agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tgaaagtaaa actactggtc 1020ctgttatgca catttacagc tacatatgca gacacaatat gtataggcta ccatgccaac 1080aactcaaccg acactgttga cacagtactt gagaagaatg tgacagtgac acactctgtc 1140aacctgcttg aggacagtca caatggaaaa ttatgtctat taaaaggaat agccccacta 1200caattgggta attgcagcgt tgccggatgg atcttaggaa acccagaatg cgaattactg 1260atttccaggg aatcatggtc ctacattgta gaaaaaccaa atcctgagaa tggaacatgt 1320tacccagggc atttcgccga ctatgaggaa ctgagggagc aattgagttc agtatcttca 1380tttgagagat tcgaaatatt ccccaaagaa agctcatggc ccaaccacac cacaaccgga 1440gtatcagcat catgctccca taatggggaa agcagttttt acaaaaattt gctatggctg 1500acggggaaga atggtttgta cccaaacctg agcaagtcct atgcaaacaa caaagagaaa 1560gaagtccttg tactatgggg tgttcatcac ccgcctaaca taggtgacca aagggctctc 1620tatcataaag aaaatgctta tgtctctgta gtgtcttcac attatagcag aaaattcacc 1680ccagaaatag ccaaaagacc caaagtaaga gatcaagaag gaagaatcaa ctactactgg 1740actctacttg aacccgggga tacaataata tttgaggcaa atggaaatct aatagcgcca 1800agatatgctt tcgcactgag tagaggcttt ggatcaggaa tcatcaactc aaatgcacca 1860atggatgaat gtgatgcgaa gtgccaaaca cctcagggag ctataaacag cagtcttcct 1920ttccagaatg tacaccctgt cacaatagga gagtgtccaa agtatgtcag gagtgcaaaa 1980ttaaggatgg ttacaggact aaggaacatc ccatccattc aatccagagg tttgtttgga 2040gccattgccg gtttcattga aggggggtgg actggaatgg tagatggttg gtatggttat 2100catcatcaga atgagcaagg atctggctat gctgcagatc aaaaaagcac acaaaatgcc 2160attaatggga ttacaaacaa ggtcaattct gtaattgaga aaatgaacac tcaattcaca 2220gctgtgggca aagagttcaa caaattggaa agaaggatgg aaaacttaaa taaaaaagtt 2280gatgatgggt ttatagacat ttggacatat aatgcagaat tgttggttct actggaaaat 2340gaaaggactt tggatttcca tgactccaat gtgaagaatc tgtatgagaa agtaaaaagc 2400caattaaaga ataatgccaa agaaatagga aatgggtgtt ttgagttcta tcataagtgt 2460aacgatgaat gcatggagag tgtaaaaaat ggaacttatg actatccaaa atattccgaa 2520gaatcaaagt taaacaggga gaaaattgat ggagtgaaat tggaatcaat gggagtctat 2580cagattctgg cgatctactc aacagtcgcc agttctctgg ttcttttggt ctccctgggg 2640gcaatcagct tctggatgtg ttccaatggg tctttgcagt gtagaatatg catctgagag 2700ctctaagtta aaatgcttct tcgtctccta tttataatat ggtttgttat tgttaatttt 2760gttcttgtag aagagcttaa ttaatcgttg ttgttatgaa atactatttg tatgagatga 2820actggtgtaa tgtaattcat ttacataagt ggagtcagaa tcagaatgtt tcctccataa 2880ctaactagac atgaagacct gccgcgtaca attgtcttat atttgaacaa ctaaaattga 2940acatcttttg ccacaacttt ataagtggtt aatatagctc aaatatatgg tcaagttcaa 3000tagattaata atggaaatat cagttatcga aattcattaa caatcaactt aacgttatta 3060actactaatt ttatatcatc ccctttgata aatgatagta ca 3102643093DNAArtificial sequenceconstruct 780 of A/Singapore/1/57 64agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tggccatcat ttatctaatt 1020ctcctgttca cagcagtgag aggggaccaa atatgcattg gataccatgc caataattcc 1080acagagaagg tcgacacaat tctagagcgg aacgtcactg tgactcatgc caaggacatt 1140cttgagaaga cccataacgg aaagttatgc aaactaaacg gaatccctcc acttgaacta 1200ggggactgta gcattgccgg atggctcctt ggaaatccag aatgtgatag gcttctaagt 1260gtgccagaat ggtcctatat aatggagaaa gaaaacccga gagacggttt gtgttatcca 1320ggcagcttca atgattatga agaattgaaa catctcctca gcagcgtgaa acatttcgag 1380aaagtaaaga ttctgcccaa agatagatgg acacagcata caacaactgg aggttcacgg 1440gcctgcgcgg tgtctggtaa tccatcattc ttcaggaaca tggtctggct gacaaagaaa 1500gaatcaaatt atccggttgc caaaggatcg tacaacaata caagcggaga acaaatgcta 1560ataatttggg gggtgcacca tcccaatgat gagacagaac aaagaacatt gtaccagaat 1620gtgggaacct atgtttccgt aggcacatca acattgaaca aaaggtcaac cccagacata 1680gcaacaaggc ctaaagtgaa tggactagga agtagaatgg agttctcttg gaccctattg 1740gatatgtggg acaccataaa ttttgagagt actggtaatc taattgcacc agagtatgga 1800ttcaaaatat cgaaaagagg tagttcaggg atcatgaaaa cagaaggaac acttgagaac 1860tgtgagacca aatgccaaac tcctttggga gcaataaata caacattgcc ttttcacaat 1920gtccacccac tgacaatagg tgagtgcccc aaatatgtaa aatcggagaa gttggtctta 1980gcaacaggac taaggaatgt tccccagatt gaatcaagag gattgtttgg ggcaatagct 2040ggttttatag aaggaggatg gcaaggaatg gttgatggtt ggtatggata ccatcacagc 2100aatgaccagg gatcagggta tgcagcagac aaagaatcca ctcaaaaggc atttgatgga 2160atcaccaaca aggtaaattc tgtgattgaa aagatgaaca cccaatttga agctgttggg 2220aaagagttca gtaacttaga gagaagactg gagaacttga acaaaaagat ggaagacggg 2280tttctagatg tgtggacata caatgctgag cttctagttc tgatggaaaa tgagaggaca 2340cttgactttc atgattctaa tgtcaagaat ctgtatgata aagtcagaat gcagctgaga 2400gacaacgtca aagaactagg aaatggatgt tttgaatttt atcacaaatg tgatgatgaa 2460tgcatgaata gtgtgaaaaa cgggacgtat gattatccca agtatgaaga agagtctaaa 2520ctaaatagaa atgaaatcaa aggggtaaaa ttgagcagca tgggggttta tcaaatcctt 2580gccatttatg ctacagtagc aggttctctg tcactggcaa tcatgatggc tgggatctct 2640ttctggatgt gctccaacgg gtctctgcag tgcaggatct gcatatgaga gctctaagtt 2700aaaatgcttc ttcgtctcct atttataata tggtttgtta ttgttaattt tgttcttgta 2760gaagagctta attaatcgtt gttgttatga aatactattt gtatgagatg aactggtgta 2820atgtaattca tttacataag tggagtcaga atcagaatgt ttcctccata actaactaga 2880catgaagacc tgccgcgtac aattgtctta tatttgaaca actaaaattg aacatctttt 2940gccacaactt tataagtggt taatatagct caaatatatg gtcaagttca atagattaat 3000aatggaaata tcagttatcg aaattcatta acaatcaact taacgttatt aactactaat 3060tttatatcat cccctttgat aaatgatagt aca 3093653108DNAArtificial sequenceconstruct 781 of A/Anhui/1/2005 65agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tggagaaaat agtgcttctt 1020cttgcaatag tcagccttgt taaaagtgat cagatttgca ttggttacca tgcaaacaac 1080tcgacagagc aggttgacac aataatggaa aagaacgtta ctgttacaca tgcccaagac 1140atactggaaa agacacacaa cgggaagctc tgcgatctag atggagtgaa gcctctgatt 1200ttaagagatt gtagtgtagc tggatggctc ctcggaaacc caatgtgtga cgagttcatc 1260aatgtgccgg aatggtctta catagtggag aaggccaacc cagccaatga cctctgttac 1320ccagggaatt tcaacgacta tgaagaactg aaacacctat tgagcagaat aaaccatttt 1380gagaaaattc agatcatccc caaaagttct tggtccgatc atgaagcctc atcaggggtc 1440agctcagcat gtccatacca gggaacgccc tcctttttca gaaatgtggt atggcttatc 1500aaaaagaaca atacataccc aacaataaag agaagctaca ataataccaa ccaggaagat 1560cttttgatac tgtgggggat tcatcattct aatgatgcgg cagagcagac aaagctctat 1620caaaacccaa ccacctatat ttccgttggg acatcaacac taaaccagag attggtacca 1680aaaatagcta ctagatccaa agtaaacggg caaagtggaa ggatggattt cttctggaca 1740attttaaaac cgaatgatgc aatcaacttc gagagtaatg gaaatttcat tgctccagaa 1800tatgcataca aaattgtcaa gaaaggggac tcagcaattg ttaaaagtga agtggaatat 1860ggtaactgca atacaaagtg tcaaactcca ataggggcga taaactctag tatgccattc 1920cacaacatac accctctcac catcggggaa tgccccaaat atgtgaaatc aaacaaatta 1980gtccttgcga ctgggctcag aaatagtcct ctaagagaaa gaagaagaaa aagaggacta 2040tttggagcta tagcagggtt tatagaggga ggatggcagg gaatggtaga tggttggtat 2100gggtaccacc atagcaatga gcaggggagt gggtacgctg cagacaaaga atccactcaa 2160aaggcaatag atggagtcac caataaggtc aactcgatca ttgacaaaat gaacactcag 2220tttgaggccg ttggaaggga atttaataac ttagaaagga gaatagagaa tttaaacaag 2280aaaatggaag acggattcct agatgtctgg acttataatg ctgaacttct ggttctcatg 2340gaaaatgaga gaactctaga cttccatgat tcaaatgtca agaaccttta cgacaaggtc 2400cgactacagc ttagggataa tgcaaaggag ctgggtaacg gttgtttcga gttctatcac 2460aaatgtgata atgaatgtat ggaaagtgta agaaacggaa cgtatgacta cccgcagtat 2520tcagaagaag caagattaaa aagagaggaa ataagtggag taaaattgga atcaatagga 2580acttaccaaa tactgtcaat ttattcaaca gttgcgagtt ctctagcact ggcaatcatg 2640gtggctggtc tatctttgtg gatgtgctcc aatgggtcgt tacaatgcag aatttgcatt 2700taagagctct aagttaaaat gcttcttcgt ctcctattta taatatggtt tgttattgtt 2760aattttgttc ttgtagaaga gcttaattaa tcgttgttgt tatgaaatac tatttgtatg 2820agatgaactg gtgtaatgta attcatttac ataagtggag tcagaatcag aatgtttcct 2880ccataactaa ctagacatga agacctgccg cgtacaattg tcttatattt gaacaactaa 2940aattgaacat cttttgccac aactttataa gtggttaata tagctcaaat atatggtcaa 3000gttcaataga ttaataatgg aaatatcagt tatcgaaatt cattaacaat caacttaacg 3060ttattaacta ctaattttat atcatcccct ttgataaatg atagtaca 3108663111DNAArtificial sequenceconstruct 782 of A/Vietnam/1194/2004 66agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tggagaaaat agtgcttctt 1020tttgcaatag tcagtcttgt taaaagtgat cagatttgca ttggttacca tgcaaacaac 1080tcgacagagc aggttgacac aataatggaa aagaacgtta ctgttacaca tgcccaagac 1140atactggaaa agacacacaa tgggaagctc tgcgatctag atggagtgaa gcctctaatt 1200ttgagagatt gtagtgtagc tggatggctc ctcggaaacc caatgtgtga cgagttcatc 1260aatgtgccgg aatggtctta catagtggag aaggccaatc cagtcaatga cctctgttac 1320ccaggggatt tcaatgacta tgaagaattg aaacacctat tgagcagaat aaaccatttt 1380gagaaaattc agatcatccc caaaagttct tggtccagtc atgaagcctc attgggggtc 1440agctcagcat gtccatacca gggaaagtcc tcctttttca gaaatgtggt atggcttatc 1500aaaaagaaca gtacataccc aacaataaag aggagctaca ataataccaa ccaagaagat 1560cttttggtac tgtgggggat tcaccatcct aatgatgcgg cagagcagac aaagctctat 1620caaaacccaa ccacctatat ttccgttggg acatctacac taaaccagag attggtacca 1680agaatagcta ctagatccaa agtaaacggg caaagtggaa ggatggagtt cttctggaca 1740attttaaaac cgaatgatgc aatcaacttc gagagtaatg gaaatttcat tgctccagaa 1800tatgcataca aaattgtcaa gaaaggggac tcaacaatta tgaaaagtga attggaatat 1860ggtaactgca ataccaagtg tcaaactcca atgggggcga taaactctag catgccattc 1920cacaatatac accctctcac catcggggaa tgccccaaat atgtgaaatc aaacagatta 1980gtccttgcga ctgggctcag aaatagccct caaagagaga gaagaagaaa aaagagagga 2040ttatttggag ctatagcagg ttttatagag ggaggatggc agggaatggt agatggttgg 2100tatgggtacc accatagcaa cgagcagggg agtgggtacg ctgcagacaa agaatccact 2160caaaaggcaa tagatggagt caccaataag gtcaactcga ttattgacaa aatgaacact 2220cagtttgagg ccgttggaag ggaatttaac aacttagaaa ggagaataga gaatttaaac 2280aagaagatgg aagacgggtt cctagatgtc tggacttata atgctgaact tctagttctc 2340atggaaaacg agagaactct agactttcat gactcaaatg tcaagaacct ttacgacaag 2400gtccgactac agcttaggga taatgcaaag gagctgggta acggttgttt cgagttctat 2460cataaatgtg ataatgaatg tatggaaagt gtaagaaacg gaacgtatga ctacccgcag 2520tattcagaag aagcaagact aaaaagagag gaaataagtg gagtaaaatt ggaatcaata 2580ggaatttacc aaatattgtc aatttattct acagtggcca gctccctagc actggcaatc 2640atggtagctg gtctatcctt atggatgtgc tccaatgggt cgttacaatg cagaatttgc 2700atttaagagc tctaagttaa aatgcttctt cgtctcctat ttataatatg gtttgttatt 2760gttaattttg ttcttgtaga agagcttaat taatcgttgt tgttatgaaa tactatttgt 2820atgagatgaa ctggtgtaat gtaattcatt tacataagtg gagtcagaat cagaatgttt 2880cctccataac taactagaca tgaagacctg ccgcgtacaa ttgtcttata tttgaacaac 2940taaaattgaa catcttttgc cacaacttta taagtggtta atatagctca aatatatggt 3000caagttcaat agattaataa tggaaatatc agttatcgaa attcattaac aatcaactta 3060acgttattaa ctactaattt tatatcatcc cctttgataa atgatagtac a 3111673105DNAArtificial sequenceconstruct 783 of A/Teal/Hong Kong/W312/97 67agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc

agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tgattgcaat cattgtaata 1020gcaatactgg cagcagccgg aaagtcagac aagatctgca ttgggtatca tgccaacaat 1080tcaacaacac aggtagatac gatacttgag aagaatgtga ctgtcacaca ctcaattgaa 1140ttgctggaaa atcagaagga agaaagattc tgcaagatat tgaacaaggc ccctctcgac 1200ttaagggaat gtaccataga gggttggatc ttggggaatc cccaatgcga cctattgctt 1260ggtgatcaaa gctggtcata cattgtggaa agacctactg ctcaaaacgg gatctgctac 1320ccaggaacct taaatgaggt agaagaactg agggcactta ttggatcagg agaaagggta 1380gagagatttg agatgtttcc ccaaagcacc tggcaaggag ttgacaccaa cagtggaaca 1440acaagatcct gcccttattc tactggtgcg tctttctaca gaaacctcct atggataata 1500aaaaccaaga cagcagaata tccagtaatt aagggaattt acaacaacac tggaacccag 1560ccaatcctct atttctgggg tgtgcatcat cctcctaaca ccgacgagca agatactctg 1620tatggctctg gtgatcgata cgttagaatg ggaactgaaa gcatgaattt tgccaagagt 1680ccggaaattg cggcaaggcc tgctgtgaat ggacaaagag gcagaattga ttattattgg 1740tcggttttaa aaccagggga aaccttgaat gtggaatcta atggaaatct aatcgcccct 1800tggtatgcat acaaatttgt caacacaaat agtaaaggag ccgtcttcag gtcagattta 1860ccaatcgaga actgcgatgc cacatgccag actattgcag gggttctaag gaccaataaa 1920acatttcaga atgtgagtcc cctgtggata ggagaatgtc ccaaatacgt gaaaagtgaa 1980agtctgaggc ttgcaactgg actaagaaat gttccacaga ttgaaactag aggactcttc 2040ggagctattg cagggtttat tgaaggagga tggactggga tgatagatgg gtggtatggc 2100tatcaccatg aaaattctca agggtcagga tatgcagcag acagagaaag cactcaaaag 2160gctgtaaaca gaattacaaa taaggtcaat tccatcatca acaaaatgaa cacacaattt 2220gaagctgtcg atcacgaatt ttcaaatctg gagaggagaa ttgacaatct gaacaaaaga 2280atgcaagatg gatttctgga tgtttggaca tacaatgctg aactgttggt tcttcttgaa 2340aacgaaagaa cactagacat gcatgacgca aatgtgaaga acctacatga aaaggtcaaa 2400tcacaactaa gggacaatgc tacgatctta gggaatggtt gctttgaatt ttggcataag 2460tgtgacaatg aatgcataga gtctgtcaaa aatggtacat atgactatcc caaataccag 2520actgaaagca aattaaacag gctaaaaata gaatcagtaa agctagagaa ccttggtgtg 2580tatcaaattc ttgccattta tagtacggta tcgagcagcc tagtgttggt agggctgatc 2640atggcaatgg gtctttggat gtgttcaaat ggttcaatgc agtgcaggat atgtatataa 2700gagctctaag ttaaaatgct tcttcgtctc ctatttataa tatggtttgt tattgttaat 2760tttgttcttg tagaagagct taattaatcg ttgttgttat gaaatactat ttgtatgaga 2820tgaactggtg taatgtaatt catttacata agtggagtca gaatcagaat gtttcctcca 2880taactaacta gacatgaaga cctgccgcgt acaattgtct tatatttgaa caactaaaat 2940tgaacatctt ttgccacaac tttataagtg gttaatatag ctcaaatata tggtcaagtt 3000caatagatta ataatggaaa tatcagttat cgaaattcat taacaatcaa cttaacgtta 3060ttaactacta attttatatc atcccctttg ataaatgata gtaca 3105683087DNAArtificial sequenceconstruct 785 of A/Hong Kong/1073/99 68agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tggaaacaat atcactaata 1020actatactac tagtagtaac agcaagcaat gcagataaaa tctgcatcgg ccaccagtca 1080acaaactcca cagaaactgt ggacacgcta acagaaacca atgttcctgt gacacatgcc 1140aaagaattgc tccacacaga gcataatgga atgctgtgtg caacaagcct gggacatccc 1200ctcattctag acacatgcac tattgaagga ctagtctatg gcaacccttc ttgtgacctg 1260ctgttgggag gaagagaatg gtcctacatc gtcgaaagat catcagctgt aaatggaacg 1320tgttaccctg ggaatgtaga aaacctagag gaactcagga cactttttag ttccgctagt 1380tcctaccaaa gaatccaaat cttcccagac acaacctgga atgtgactta cactggaaca 1440agcagagcat gttcaggttc attctacagg agtatgagat ggctgactca aaagagcggt 1500ttttaccctg ttcaagacgc ccaatacaca aataacaggg gaaagagcat tcttttcgtg 1560tggggcatac atcacccacc cacctatacc gagcaaacaa atttgtacat aagaaacgac 1620acaacaacaa gcgtgacaac agaagatttg aataggacct tcaaaccagt gatagggcca 1680aggccccttg tcaatggtct gcagggaaga attgattatt attggtcggt actaaaacca 1740ggccaaacat tgcgagtacg atccaatggg aatctaattg ctccatggta tggacacgtt 1800ctttcaggag ggagccatgg aagaatcctg aagactgatt taaaaggtgg taattgtgta 1860gtgcaatgtc agactgaaaa aggtggctta aacagtacat tgccattcca caatatcagt 1920aaatatgcat ttggaacctg ccccaaatat gtaagagtta atagtctcaa actggcagtc 1980ggtctgagga acgtgcctgc tagatcaagt agaggactat ttggagccat agctggattc 2040atagaaggag gttggccagg actagtcgct ggctggtatg gtttccagca ttcaaatgat 2100caaggggttg gtatggctgc agatagggat tcaactcaaa aggcaattga taaaataaca 2160tccaaggtga ataatatagt cgacaagatg aacaagcaat atgaaataat tgatcatgaa 2220tttagtgagg ttgaaactag actcaatatg atcaataata agattgatga ccaaatacaa 2280gacgtatggg catataatgc agaattgcta gtactacttg aaaatcaaaa aacactcgat 2340gagcatgatg cgaacgtgaa caatctatat aacaaggtga agagggcact gggctccaat 2400gctatggaag atgggaaagg ctgtttcgag ctataccata aatgtgatga tcagtgcatg 2460gaaacaattc ggaacgggac ctataatagg agaaagtata gagaggaatc aagactagaa 2520aggcagaaaa tagagggggt taagctggaa tctgagggaa cttacaaaat cctcaccatt 2580tattcgactg tcgcctcatc tcttgtgctt gcaatggggt ttgctgcctt cctgttctgg 2640gccatgtcca atggatcttg cagatgcaac atttgtatat aagagctcta agttaaaatg 2700cttcttcgtc tcctatttat aatatggttt gttattgtta attttgttct tgtagaagag 2760cttaattaat cgttgttgtt atgaaatact atttgtatga gatgaactgg tgtaatgtaa 2820ttcatttaca taagtggagt cagaatcaga atgtttcctc cataactaac tagacatgaa 2880gacctgccgc gtacaattgt cttatatttg aacaactaaa attgaacatc ttttgccaca 2940actttataag tggttaatat agctcaaata tatggtcaag ttcaatagat taataatgga 3000aatatcagtt atcgaaattc attaacaatc aacttaacgt tattaactac taattttata 3060tcatcccctt tgataaatga tagtaca 3087693105DNAArtificial sequencecassette from A/Brisbane/10/2007 69agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tgaagactat cattgctttg 1020agctacattc tatgtctggt tttcactcaa aaacttcccg gaaatgacaa cagcacggca 1080acgctgtgcc ttgggcacca tgcagtacca aacggaacga tagtgaaaac aatcacgaat 1140gaccaaattg aagttactaa tgctactgag ctggttcaga gttcctcaac aggtgaaata 1200tgcgacagtc ctcatcagat ccttgatgga gaaaactgca cactaataga tgctctattg 1260ggagaccctc agtgtgatgg cttccaaaat aagaaatggg acctttttgt tgaacgcagc 1320aaagcctaca gcaactgtta cccttatgat gtgccggatt atgcctccct taggtcacta 1380gttgcctcat ccggcacact ggagtttaac aatgaaagtt tcaattggac tggagtcact 1440caaaacggaa caagctctgc ttgcataagg agatctaata acagtttctt tagtagattg 1500aattggttga cccacttaaa attcaaatac ccagcattga acgtgactat gccaaacaat 1560gaaaaatttg acaaattgta catttggggg gttcaccacc cgggtacgga caatgaccaa 1620atcttcctgt atgctcaagc atcaggaaga atcacagtct ctaccaaaag aagccaacaa 1680actgtaatcc cgaatatcgg atctagaccc agagtaagga atatccccag cagaataagc 1740atctattgga caatagtaaa accgggagac atacttttga ttaacagcac agggaatcta 1800attgctccta ggggttactt caaaatacga agtgggaaaa gctcaataat gagatcagat 1860gcacccattg gcaaatgcaa ttctgaatgc atcactccaa acggaagcat tcccaatgac 1920aaaccattcc aaaatgtaaa caggatcaca tacggggcct gtcccagata tgttaagcaa 1980aacactctga aattggcaac agggatgcga aatgtaccag agaaacaaac tagaggcata 2040tttggcgcaa tcgcgggttt catagaaaat ggttgggagg gaatggtgga tggttggtat 2100ggtttcaggc atcaaaattc tgagggaata ggacaagcag cagatctcaa aagcactcaa 2160gcagcaatcg atcaaatcaa tgggaagctg aataggttga tcgggaaaac caacgagaaa 2220ttccatcaga ttgaaaaaga gttctcagaa gtcgaaggga gaatccagga ccttgagaaa 2280tatgttgagg acaccaaaat agatctctgg tcatacaacg cggagcttct tgttgccctg 2340gagaaccaac atacaattga tctaactgac tcagaaatga acaaactgtt tgaaaaaaca 2400aagaagcaac tgagggaaaa tgctgaggat atgggcaatg gttgtttcaa aatataccac 2460aaatgtgaca atgcctgcat aggatcaatc agaaatggaa cttatgacca cgatgtatac 2520agagatgaag cattaaacaa ccggttccag atcaagggcg ttgagctgaa gtcaggatac 2580aaagattgga tactatggat ttcctttgcc atatcatgtt ttttgctttg tgttgctttg 2640ttggggttca tcatgtgggc ctgccaaaaa ggcaacatta ggtgcaacat ttgcatttga 2700gagctctaag ttaaaatgct tcttcgtctc ctatttataa tatggtttgt tattgttaat 2760tttgttcttg tagaagagct taattaatcg ttgttgttat gaaatactat ttgtatgaga 2820tgaactggtg taatgtaatt catttacata agtggagtca gaatcagaat gtttcctcca 2880taactaacta gacatgaaga cctgccgcgt acaattgtct tatatttgaa caactaaaat 2940tgaacatctt ttgccacaac tttataagtg gttaatatag ctcaaatata tggtcaagtt 3000caatagatta ataatggaaa tatcagttat cgaaattcat taacaatcaa cttaacgtta 3060ttaactacta attttatatc atcccctttg ataaatgata gtaca 3105703105DNAArtificial sequencecassette from A/Wisconsin/67/2005 70agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tgaagactat cattgctttg 1020agctacattc tatgtctggt tttcactcaa aaacttcccg gaaatgacaa cagcacggca 1080acgctgtgcc ttgggcacca tgcagtacca aacggaacga tagtgaaaac aatcacgaat 1140gaccaaattg aagttactaa tgctactgag ctggttcaga gttcctcaac aggtggaata 1200tgcgacagtc ctcatcagat ccttgatgga gaaaactgca cactaataga tgctctattg 1260ggagaccctc agtgtgatgg cttccaaaat aagaaatggg acctttttgt tgaacgcagc 1320aaagcctaca gcaactgtta cccttatgat gtgccggatt atgcctccct taggtcacta 1380gttgcctcat ccggcacact ggagtttaac gatgaaagtt tcaattggac tggagtcact 1440caaaatggaa caagctctgc ttgcaaaagg agatctaata acagtttctt tagtagattg 1500aattggttga cccacttaaa attcaaatac ccagcattga acgtgactat gccaaacaat 1560gaaaaatttg acaaattgta catttggggg gttcaccacc cgggtacgga caatgaccaa 1620atcttcctgc atgctcaagc atcaggaaga atcacagtct ctaccaaaag aagccaacaa 1680actgtaatcc cgaatatcgg atctagaccc agaataagga atatccccag cagaataagc 1740atctattgga caatagtaaa accgggagac atacttttga ttaacagcac agggaatcta 1800attgctccta ggggttactt caaaatacga agtgggaaaa gctcaataat gagatcagat 1860gcacccattg gcaaatgcaa ttctgaatgc atcactccaa atggaagcat tcccaatgac 1920aaaccatttc aaaatgtaaa caggatcaca tatggggcct gtcccagata tgttaagcaa 1980aacactctga aattggcaac agggatgcga aatgtaccag agaaacaaac tagaggcata 2040tttggcgcaa tcgcgggttt catagaaaat ggttgggagg gaatggtgga tggttggtac 2100ggtttcaggc atcaaaattc tgagggaata ggacaagcag cagatctcaa aagcactcaa 2160gcagcaatca atcaaatcaa tgggaagctg aataggttga tcgggaaaac caacgagaaa 2220ttccatcaga ttgaaaaaga gttctcagaa gtagaaggga gaatccagga cctcgagaaa 2280tatgttgagg acactaaaat agatctctgg tcatacaacg cggagcttct tgttgccctg 2340gagaaccaac atacaattga tctaactgac tcagaaatga acaaactgtt tgaaagaaca 2400aagaagcaac tgagggaaaa tgctgaggat atgggcaatg gttgtttcaa aatataccac 2460aaatgtgaca atgcctgcat aggatcaatc agaaatggaa cttatgacca tgatgtatac 2520agagatgaag cattaaacaa ccggttccag atcaaaggcg ttgagctgaa gtcaggatac 2580aaagattgga tactatggat ttcctttgcc atatcatgtt ttttgctttg tgttgctttg 2640ttggggttca tcatgtgggc ctgccaaaaa ggcaacatta ggtgcaacat ttgcatttga 2700gagctctaag ttaaaatgct tcttcgtctc ctatttataa tatggtttgt tattgttaat 2760tttgttcttg tagaagagct taattaatcg ttgttgttat gaaatactat ttgtatgaga 2820tgaactggtg taatgtaatt catttacata agtggagtca gaatcagaat gtttcctcca 2880taactaacta gacatgaaga cctgccgcgt acaattgtct tatatttgaa caactaaaat 2940tgaacatctt ttgccacaac tttataagtg gttaatatag ctcaaatata tggtcaagtt 3000caatagatta ataatggaaa tatcagttat cgaaattcat taacaatcaa cttaacgtta 3060ttaactacta attttatatc atcccctttg ataaatgata gtaca 3105713117DNAArtificial sequencecasette of A/Equine/Prague/56 71agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tgaacactca aattctaata 1020ttagccactt cggcattctt ctatgtacgt gcagataaaa tctgcctagg acatcatgct 1080gtgtctaatg gaaccaaagt agacaccctt actgaaaaag gaatagaagt tgtcaatgca 1140acagaaacag ttgaacaaac aaacatccct aagatctgct caaaaggaaa acagactgtt 1200gaccttggtc aatgtggatt actagggacc gttattggtc ctccccaatg tgaccaattt 1260cttgagttct ctgctaattt aatagttgaa agaagggaag gtaatgacat ttgttatcca 1320ggcaaatttg acaatgaaga aacattgaga aaaatactca gaaaatccgg aggaattaaa 1380aaggagaata tgggattcac atataccgga gtgagaacca atggagagac tagcgcatgt 1440agaaggtcaa gatcttcctt ttatgcagag atgaaatggc ttctatccag cacagacaat 1500gggacatttc cacaaatgac aaagtcctac aagaacacta agaaggtacc agctctgata 1560atctggggaa tccaccactc aggatcaact actgaacaga ctagattata tggaagtggg 1620aataaattga taacagtttg gagttccaaa taccaacaat cttttgtccc aaatcctgga 1680ccaagaccgc aaatgaatgg tcaatcagga agaattgact ttcactggct gatgctagat 1740cccaatgata ctgtcacttt cagttttaat ggggccttta tagcacctga ccgcgccagt 1800tttctaagag gtaaatctct aggaatccaa agtgatgcac aacttgacaa taattgtgaa 1860ggtgaatgct atcatattgg aggtactata attagcaact tgccctttca aaacattaat 1920agtagggcaa tcggaaaatg ccccagatac gtgaagcaga agagcttaat gctagcaaca 1980ggaatgaaaa atgttcctga agctcctgca cataaacaac taactcatca catgcgcaaa 2040aaaagaggtt tatttggtgc aatagcagga ttcattgaaa atgggtggga aggattaata 2100gacggatggt atggatataa gcatcagaat gcacaaggag aagggactgc tgcagactac 2160aaaagtacac aatctgctat caaccaaata accggaaaat tgaacagact aatagaaaaa 2220accaaccagc aattcgaact aatagataat gagttcaatg aaatagaaaa acaaattggc 2280aatgttatta actggactag agattctatc atcgaagtat ggtcatataa tgcagagttc 2340ctcgtagcag tggagaatca acacactatt gatttaactg actcagaaat gaacaaacta 2400tatgaaaagg taagaagaca actgagagaa aatgctgagg aagatggtaa tggctgtttt 2460gaaatattcc accaatgtga caatgattgc atggccagca ttagaaacaa cacatatgac 2520cataaaaaat acagaaaaga ggcaatacaa aacagaatcc agattgacgc agtaaagttg 2580agcagtggtt acaaagatat aatactttgg tttagcttcg gggcatcatg tttcttattt 2640cttgccattg caatgggtct tgttttcata tgtataaaaa atggaaacat gcggtgcact 2700atttgtatat aagagctcta agttaaaatg cttcttcgtc tcctatttat aatatggttt 2760gttattgtta attttgttct tgtagaagag cttaattaat cgttgttgtt atgaaatact 2820atttgtatga gatgaactgg tgtaatgtaa ttcatttaca taagtggagt cagaatcaga 2880atgtttcctc cataactaac tagacatgaa gacctgccgc gtacaattgt cttatatttg 2940aacaactaaa attgaacatc ttttgccaca

actttataag tggttaatat agctcaaata 3000tatggtcaag ttcaatagat taataatgga aatatcagtt atcgaaattc attaacaatc 3060aacttaacgt tattaactac taattttata tcatcccctt tgataaatga tagtaca 3117723162DNAArtificial sequencecassette of B/Malaysia/2506/2004 72agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tgaaggcaat aattgtacta 1020ctcatggtag taacatccaa tgcagatcga atctgcactg ggataacatc gtcaaactca 1080ccacatgttg tcaaaactgc tactcaaggg gaggtcaatg tgactggtgt aataccactg 1140acaacaacac ccaccaaatc tcattttgca aatctcaaag gaacagaaac cagagggaaa 1200ctatgcccaa aatgcctcaa ctgcacagat ctggacgtgg ccttgggcag accaaaatgc 1260acggggaaca taccctcggc aagagtttca atactccatg aagtcagacc tgttacatct 1320gggtgctttc ctataatgca cgacagaaca aaaattagac agctgcctaa acttctcaga 1380ggatacgaac atatcaggtt atcaactcat aacgttatca atgcagaaaa tgcaccagga 1440ggaccctaca aaattggaac ctcagggtct tgccctaacg ttaccaatgg aaacggattt 1500ttcgcaacaa tggcttgggc cgtcccaaaa aacgacaaca acaaaacagc aacaaattca 1560ttaacaatag aagtaccata catttgtaca gaaggagaag accaaattac cgtttggggg 1620ttccactctg ataacgaaac ccaaatggca aagctctatg gggactcaaa gccccagaag 1680ttcacctcat ctgccaacgg agtgaccaca cattacgttt cacagattgg tggcttccca 1740aatcaaacag aagacggagg actaccacaa agcggtagaa ttgttgttga ttacatggtg 1800caaaaatctg ggaaaacagg aacaattacc tatcaaagag gtattttatt gcctcaaaaa 1860gtgtggtgcg caagtggcag gagcaaggta ataaaaggat cgttgccttt aattggagaa 1920gcagattgcc tccacgaaaa atacggtgga ttaaacaaaa gcaagcctta ctacacaggg 1980gaacatgcaa aggccatagg aaattgccca atatgggtga aaacaccctt gaagctggcc 2040aatggaacca aatatagacc tcctgcaaaa ctattaaagg aaaggggttt cttcggagct 2100attgctggtt tcttagaagg aggatgggaa ggaatgattg caggttggca cggatacaca 2160tcccatgggg cacatggagt agcggtggca gcagacctta agagcactca agaggccata 2220aacaagataa caaaaaatct caactctttg agtgagctgg aagtaaagaa tcttcaaaga 2280ctaagcggtg ccatggatga actccacaac gaaatactag aactagacga gaaagtggat 2340gatctcagag ctgatacaat aagctcacaa atagaactcg cagtcctgct ttccaatgaa 2400ggaataataa acagtgaaga tgagcatctc ttggcgcttg aaagaaagct gaagaaaatg 2460ctgggcccct ctgctgtaga gatagggaat ggatgctttg aaaccaaaca caagtgcaac 2520cagacctgtc tcgacagaat agctgctggt acctttgatg caggagaatt ttctctcccc 2580acttttgatt cactgaatat tactgctgca tctttaaatg acgatggatt ggataatcat 2640actatactgc tttactactc aactgctgcc tccagtttgg ctgtaacatt gatgatagct 2700atctttgttg tttatatggt ctccagagac aatgtttctt gctccatctg tctataagag 2760ctctaagtta aaatgcttct tcgtctccta tttataatat ggtttgttat tgttaatttt 2820gttcttgtag aagagcttaa ttaatcgttg ttgttatgaa atactatttg tatgagatga 2880actggtgtaa tgtaattcat ttacataagt ggagtcagaa tcagaatgtt tcctccataa 2940ctaactagac atgaagacct gccgcgtaca attgtcttat atttgaacaa ctaaaattga 3000acatcttttg ccacaacttt ataagtggtt aatatagctc aaatatatgg tcaagttcaa 3060tagattaata atggaaatat cagttatcga aattcattaa caatcaactt aacgttatta 3120actactaatt ttatatcatc ccctttgata aatgatagta ca 3162733159DNAArtificial sequencecassette of B/Florida/4/2006 73agaggtaccc cgggctggta tatttatatg ttgtcaaata actcaaaaac cataaaagtt 60taagttagca agtgtgtaca tttttacttg aacaaaaata ttcacctact actgttataa 120atcattatta aacattagag taaagaaata tggatgataa gaacaagagt agtgatattt 180tgacaacaat tttgttgcaa catttgagaa aattttgttg ttctctcttt tcattggtca 240aaaacaatag agagagaaaa aggaagaggg agaataaaaa cataatgtga gtatgagaga 300gaaagttgta caaaagttgt accaaaatag ttgtacaaat atcattgagg aatttgacaa 360aagctacaca aataagggtt aattgctgta aataaataag gatgacgcat tagagagatg 420taccattaga gaatttttgg caagtcatta aaaagaaaga ataaattatt tttaaaatta 480aaagttgagt catttgatta aacatgtgat tatttaatga attgatgaaa gagttggatt 540aaagttgtat tagtaattag aatttggtgt caaatttaat ttgacatttg atcttttcct 600atatattgcc ccatagagtc agttaactca tttttatatt tcatagatca aataagagaa 660ataacggtat attaatccct ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc 720cacgtaggag gataacagga tccccgtagg aggataacat ccaatccaac caatcacaac 780aatcctgatg agataaccca ctttaagccc acgcatctgt ggcacatcta cattatctaa 840atcacacatt cttccacaca tctgagccac acaaaaacca atccacatct ttatcaccca 900ttctataaaa aatcacactt tgtgagtcta cactttgatt cccttcaaac acatacaaag 960agaagagact aattaattaa ttaatcatct tgagagaaaa tgaaggcaat aattgtacta 1020ctcatggtag taacatccaa tgcagatcga atctgcactg gaataacatc ttcaaactca 1080cctcatgtgg tcaaaacagc cactcaaggg gaggtcaatg tgactggtgt gataccacta 1140acaacaacac caacaaaatc ttattttgca aatctcaaag gaacaaggac cagagggaaa 1200ctatgcccag actgtctcaa ctgcacagat ctggatgtgg ctttgggcag accaatgtgt 1260gtggggacca caccttcggc gaaggcttca atactccacg aagtcaaacc tgttacatcc 1320gggtgctttc ctataatgca cgacagaaca aaaatcaggc aactacccaa tcttctcaga 1380ggatatgaaa atatcaggct atcaacccaa aacgtcatcg atgcggaaaa ggcaccagga 1440ggaccctaca gacttggaac ctcaggatct tgccctaacg ctaccagtaa gagcggattt 1500ttcgcaacaa tggcttgggc tgtcccaaag gacaacaaca aaaatgcaac gaacccacta 1560acagtagaag taccatacat ttgtacagaa ggggaagacc aaatcactgt ttgggggttc 1620cattcagata acaaaaccca aatgaagaac ctctatggag actcaaatcc tcaaaagttc 1680acctcatctg ctaatggagt aaccacacac tatgtttctc agattggcag cttcccagat 1740caaacagaag acggaggact accacaaagc ggcaggattg ttgttgatta catgatgcaa 1800aaacctggga aaacaggaac aattgtctac caaagaggtg ttttgttgcc tcaaaaggtg 1860tggtgcgcga gtggcaggag caaagtaata aaagggtcct tgcctttaat tggtgaagca 1920gattgccttc atgaaaaata cggtggatta aacaaaagca agccttacta cacaggagaa 1980catgcaaaag ccataggaaa ttgcccaata tgggtgaaaa cacctttgaa gctcgccaat 2040ggaaccaaat atagacctcc tgcaaaacta ttaaaggaaa ggggtttctt cggagctatt 2100gctggtttcc tagaaggagg atgggaagga atgattgcag gctggcacgg atacacatct 2160cacggagcac atggagtggc agtggcggcg gaccttaaga gtacgcaaga agctataaac 2220aagataacaa aaaatctcaa ttctttgagt gagctagaag taaagaatct tcaaagacta 2280agtggtgcca tggatgaact ccacaacgaa atactcgagc tggatgagaa agtggatgat 2340ctcagagctg acactataag ctcgcaaata gaacttgcag tcttgctttc caacgaagga 2400ataataaaca gtgaagatga gcatctattg gcacttgaga gaaaactaaa gaaaatgctg 2460ggtccctctg ctgtagagat aggaaatgga tgcttcgaaa ccaaacacaa gtgcaaccag 2520acctgcttag acaggatagc tgctggcacc tttaatgcag gagaattttc tctccccact 2580tttgattcac tgaacattac tgctgcatct ttaaatgatg atggattgga taaccatact 2640atactgctct attactcaac tgctgcttct agtttggctg taacattgat gctagctatt 2700tttattgttt atatggtctc cagagacaac gtttcatgct ccatctgtct ataagagctc 2760taagttaaaa tgcttcttcg tctcctattt ataatatggt ttgttattgt taattttgtt 2820cttgtagaag agcttaatta atcgttgttg ttatgaaata ctatttgtat gagatgaact 2880ggtgtaatgt aattcattta cataagtgga gtcagaatca gaatgtttcc tccataacta 2940actagacatg aagacctgcc gcgtacaatt gtcttatatt tgaacaacta aaattgaaca 3000tcttttgcca caactttata agtggttaat atagctcaaa tatatggtca agttcaatag 3060attaataatg gaaatatcag ttatcgaaat tcattaacaa tcaacttaac gttattaact 3120actaatttta tatcatcccc tttgataaat gatagtaca 315974565PRTArtificial sequenceconsensus of SEQ ID NO 33, 48, 49 and 9 74Met Lys Xaa Lys Leu Leu Val Leu Leu Cys Thr Phe Thr Ala Thr Tyr1 5 10 15Ala Asp Thr Ile Cys Ile Gly Tyr His Ala Asn Asn Ser Thr Asp Thr 20 25 30Val Asp Thr Val Leu Glu Lys Asn Val Thr Val Thr His Ser Val Asn 35 40 45Leu Leu Glu Xaa Ser His Asn Gly Lys Leu Cys Leu Leu Lys Gly Ile 50 55 60Ala Pro Leu Gln Leu Gly Asn Cys Ser Val Ala Gly Trp Ile Leu Gly65 70 75 80Asn Pro Glu Cys Glu Leu Leu Ile Ser Xaa Glu Ser Trp Ser Tyr Ile 85 90 95Val Glu Xaa Pro Asn Pro Glu Asn Gly Thr Cys Tyr Pro Gly Xaa Phe 100 105 110Ala Asp Tyr Glu Glu Leu Arg Glu Gln Leu Ser Ser Val Ser Ser Phe 115 120 125Glu Arg Phe Glu Ile Phe Pro Lys Glu Ser Ser Trp Pro Asn His Thr 130 135 140Xaa Thr Gly Val Ser Ala Ser Cys Ser His Asn Gly Xaa Ser Ser Phe145 150 155 160Tyr Xaa Asn Leu Leu Trp Leu Thr Gly Lys Asn Gly Leu Tyr Pro Asn 165 170 175Leu Ser Lys Ser Tyr Xaa Asn Asn Lys Glu Lys Glu Val Leu Val Leu 180 185 190Trp Gly Val His His Pro Pro Asn Ile Gly Xaa Gln Xaa Ala Leu Tyr 195 200 205His Xaa Glu Asn Ala Tyr Val Ser Val Val Ser Ser His Tyr Ser Arg 210 215 220Xaa Phe Thr Pro Glu Ile Ala Lys Arg Pro Lys Val Arg Asp Gln Glu225 230 235 240Gly Arg Ile Asn Tyr Tyr Trp Thr Leu Leu Glu Pro Gly Asp Thr Ile 245 250 255Ile Phe Glu Ala Asn Gly Asn Leu Ile Ala Pro Xaa Tyr Ala Phe Ala 260 265 270Leu Ser Arg Gly Phe Gly Ser Gly Ile Ile Xaa Ser Asn Ala Pro Met 275 280 285Asp Xaa Cys Asp Ala Lys Cys Gln Thr Pro Gln Gly Ala Ile Asn Ser 290 295 300Ser Leu Pro Phe Gln Asn Val His Pro Val Thr Ile Gly Glu Cys Pro305 310 315 320Lys Tyr Val Arg Ser Ala Lys Leu Arg Met Val Thr Gly Leu Arg Asn 325 330 335Ile Pro Ser Ile Gln Ser Arg Gly Leu Phe Gly Ala Ile Ala Gly Phe 340 345 350Ile Glu Gly Gly Trp Thr Gly Met Val Asp Gly Trp Tyr Gly Tyr His 355 360 365His Gln Asn Glu Gln Gly Ser Gly Tyr Ala Ala Asp Gln Lys Ser Thr 370 375 380Gln Asn Ala Ile Asn Gly Ile Thr Asn Lys Val Asn Ser Val Ile Glu385 390 395 400Lys Met Asn Thr Gln Phe Thr Ala Val Gly Lys Glu Phe Asn Lys Leu 405 410 415Glu Arg Arg Met Glu Asn Leu Asn Lys Lys Val Asp Asp Gly Phe Xaa 420 425 430Asp Ile Trp Thr Tyr Asn Ala Glu Leu Leu Val Leu Leu Glu Asn Glu 435 440 445Arg Thr Leu Asp Phe His Asp Ser Asn Val Lys Asn Leu Tyr Glu Lys 450 455 460Val Lys Ser Gln Leu Lys Asn Asn Ala Lys Glu Ile Gly Asn Gly Cys465 470 475 480Phe Glu Phe Tyr His Lys Cys Asn Xaa Glu Cys Met Glu Ser Val Lys 485 490 495Asn Gly Thr Tyr Asp Tyr Pro Lys Tyr Ser Glu Glu Ser Lys Leu Asn 500 505 510Arg Glu Lys Ile Asp Gly Val Lys Leu Glu Ser Met Gly Val Tyr Gln 515 520 525Ile Leu Ala Ile Tyr Ser Thr Val Ala Ser Ser Leu Val Leu Leu Val 530 535 540Ser Leu Gly Ala Ile Ser Phe Trp Met Cys Ser Asn Gly Ser Leu Gln545 550 555 560Cys Arg Ile Cys Ile 56575565PRTInfluenza virus A 75Met Lys Ala Lys Leu Leu Val Leu Leu Cys Thr Phe Thr Ala Thr Tyr1 5 10 15Ala Asp Thr Ile Cys Ile Gly Tyr His Ala Asn Asn Ser Thr Asp Thr 20 25 30Val Asp Thr Val Leu Glu Lys Asn Val Thr Val Thr His Ser Val Asn 35 40 45Leu Leu Glu Asp Ser His Asn Gly Lys Leu Cys Leu Leu Lys Gly Ile 50 55 60Ala Pro Leu Gln Leu Gly Asn Cys Ser Val Ala Gly Trp Ile Leu Gly65 70 75 80Asn Pro Glu Cys Glu Leu Leu Ile Ser Lys Glu Ser Trp Ser Tyr Ile 85 90 95Val Glu Thr Pro Asn Pro Glu Asn Gly Thr Cys Tyr Pro Gly Tyr Phe 100 105 110Ala Asp Tyr Glu Glu Leu Arg Glu Gln Leu Ser Ser Val Ser Ser Phe 115 120 125Glu Arg Phe Glu Ile Phe Pro Lys Glu Ser Ser Trp Pro Asn His Thr 130 135 140Val Thr Gly Val Ser Ala Ser Cys Ser His Asn Gly Lys Ser Ser Phe145 150 155 160Tyr Arg Asn Leu Leu Trp Leu Thr Gly Lys Asn Gly Leu Tyr Pro Asn 165 170 175Leu Ser Lys Ser Tyr Val Asn Asn Lys Glu Lys Glu Val Leu Val Leu 180 185 190Trp Gly Val His His Pro Pro Asn Ile Gly Asn Gln Arg Ala Leu Tyr 195 200 205His Thr Glu Asn Ala Tyr Val Ser Val Val Ser Ser His Tyr Ser Arg 210 215 220Arg Phe Thr Pro Glu Ile Ala Lys Arg Pro Lys Val Arg Asp Gln Glu225 230 235 240Gly Arg Ile Asn Tyr Tyr Trp Thr Leu Leu Glu Pro Gly Asp Thr Ile 245 250 255Ile Phe Glu Ala Asn Gly Asn Leu Ile Ala Pro Trp Tyr Ala Phe Ala 260 265 270Leu Ser Arg Gly Phe Gly Ser Gly Ile Ile Thr Ser Asn Ala Pro Met 275 280 285Asp Glu Cys Asp Ala Lys Cys Gln Thr Pro Gln Gly Ala Ile Asn Ser 290 295 300Ser Leu Pro Phe Gln Asn Val His Pro Val Thr Ile Gly Glu Cys Pro305 310 315 320Lys Tyr Val Arg Ser Ala Lys Leu Arg Met Val Thr Gly Leu Arg Asn 325 330 335Ile Pro Ser Ile Gln Ser Arg Gly Leu Phe Gly Ala Ile Ala Gly Phe 340 345 350Ile Glu Gly Gly Trp Thr Gly Met Val Asp Gly Trp Tyr Gly Tyr His 355 360 365His Gln Asn Glu Gln Gly Ser Gly Tyr Ala Ala Asp Gln Lys Ser Thr 370 375 380Gln Asn Ala Ile Asn Gly Ile Thr Asn Lys Val Asn Ser Val Ile Glu385 390 395 400Lys Met Asn Thr Gln Phe Thr Ala Val Gly Lys Glu Phe Asn Lys Leu 405 410 415Glu Arg Arg Met Glu Asn Leu Asn Lys Lys Val Asp Asp Gly Phe Leu 420 425 430Asp Ile Trp Thr Tyr Asn Ala Glu Leu Leu Val Leu Leu Glu Asn Glu 435 440 445Arg Thr Leu Asp Phe His Asp Ser Asn Val Lys Asn Leu Tyr Glu Lys 450 455 460Val Lys Ser Gln Leu Lys Asn Asn Ala Lys Glu Ile Gly Asn Gly Cys465 470 475 480Phe Glu Phe Tyr His Lys Cys Asn Asn Glu Cys Met Glu Ser Val Lys 485 490 495Asn Gly Thr Tyr Asp Tyr Pro Lys Tyr Ser Glu Glu Ser Lys Leu Asn 500 505 510Arg Glu Lys Ile Asp Gly Val Lys Leu Glu Ser Met Gly Val Tyr Gln 515 520 525Ile Leu Ala Ile Tyr Ser Thr Val Ala Ser Ser Leu Val Leu Leu Val 530 535 540Ser Leu Gly Ala Ile Ser Phe Trp Met Cys Ser Asn Gly Ser Leu Gln545 550 555 560Cys Arg Ile Cys Ile 56576252PRTInfluenza virus A 76Met Ser Leu Leu Thr Glu Val Glu Thr Tyr Val Leu Ser Ile Ile Pro1 5 10 15Ser Gly Pro Leu Lys Ala Glu Ile Ala Gln Arg Leu Glu Asp Val Phe 20 25 30Ala Gly Lys Asn Thr Asp Leu Glu Val Leu Met Glu Trp Leu Lys Thr 35 40 45Arg Pro Ile Leu Ser Pro Leu Thr Lys Gly Ile Leu Gly Phe Val Phe 50 55 60Thr Leu Thr Val Pro Ser Glu Arg Gly Leu Gln Arg Arg Arg Phe Val65 70 75 80Gln Asn Ala Leu Asn Gly Asn Gly Asp Pro Asn Asn Met Asp Lys Ala 85 90 95Val Lys Leu Tyr Arg Lys Leu Lys Arg Glu Ile Thr Phe His Gly Ala 100 105 110Lys Glu Ile Ser Leu Ser Tyr Ser Ala Gly Ala Leu Ala Ser Cys Met 115 120 125Gly Leu Ile Tyr Asn Arg Met Gly Ala Val Thr Thr Glu Val Ala Phe 130 135 140Gly Leu Val Cys Ala Thr Cys Glu Gln Ile Ala Asp Ser Gln His Arg145 150 155 160Ser His Arg Gln Met Val Thr Thr Thr Asn Pro Leu Ile Arg His Glu 165 170 175Asn Arg Met Val Leu Ala Ser Thr Thr Ala Lys Ala Met Glu Gln Met 180 185 190Ala Gly Ser Ser Glu Gln Ala Ala Glu Ala Met Glu Val Ala Ser Gln 195 200 205Ala Arg Gln Met Val Gln Ala Met Arg Thr Ile Gly Thr His Pro Ser 210 215 220Ser Ser Ala Gly Leu Lys Asn Asp Leu Leu Glu Asn Leu Gln Ala Tyr225 230 235

240Gln Lys Arg Met Gly Val Gln Met Gln Arg Phe Lys 245 2507724DNAArtificial sequencepBinPlus.2613.c 77aggaagggaa gaaagcgaaa ggag 247856DNAArtificial sequenceMut-ATG115.r 78gtgccgaagc acgatctgac aacgttgaag atcgctcacg caagaaagac aagaga 567952DNAArtificial SequenceMut-ATG161.c 79gttgtcagat cgtgcttcgg caccagtaca acgttttctt tcactgaagc ga 528025DNAArtificial sequenceLC-C5-1.110r 80tctcctggag tcacagacag ggtgg 25812065DNAArtificial sequencecassette 828 from PacI to AscI 81ttaattaaga attcgagctc caccgcggaa acctcctcgg attccattgc ccagctatct 60gtcactttat tgagaagata gtggaaaagg aaggtggctc ctacaaatgc catcattgcg 120ataaaggaaa ggccatcgtt gaagatgcct ctgccgacag tggtcccaaa gatggacccc 180cacccacgag gagcatcgtg gaaaaagaag acgttccaac cacgtcttca aagcaagtgg 240attgatgtga tatctccact gacgtaaggg atgacgcaca atcccactat ccttcgcaag 300acccttcctc tatataagga agttcatttc atttggagag gtattaaaat cttaataggt 360tttgataaaa gcgaacgtgg ggaaacccga accaaacctt cttctaaact ctctctcatc 420tctcttaaag caaacttctc tcttgtcttt cttgcgtgag cgatcttcaa cgttgtcaga 480tcgtgcttcg gcaccagtac aacgttttct ttcactgaag cgaaatcaaa gatctctttg 540tggacacgta gtgcggcgcc attaaataac gtgtacttgt cctattcttg tcggtgtggt 600cttgggaaaa gaaagcttgc tggaggctgc tgttcagccc catacattac ttgttacgat 660tctgctgact ttcggcgggt gcaatatctc tacttctgct tgacgaggta ttgttgcctg 720tacttctttc ttcttcttct tgctgattgg ttctataaga aatctagtat tttctttgaa 780acagagtttt cccgtggttt tcgaacttgg agaaagattg ttaagcttct gtatattctg 840cccaaatttg tcgggcccat ggttttcaca cctcagatac ttggacttat gcttttttgg 900atttcagcct ccagaggtga tattgtgcta actcagtctc cagccaccct gtctgtgact 960ccaggagata gtgtcagtct ttcctgcagg gccagccaaa gtattagcaa caacctacac 1020tggtttcaac aaaaatcgca tgagtctcca aggcttctca tcaagtatgc ttcccagtcc 1080atatctggga tcccctccag gttcagtggc agtggatctg ggacagattt cactctcagt 1140atcaacagtg tgaagactga agattttgga atgtttttct gtcaacagag taacagctgg 1200cctctcacgt tcggtgatgg gacaaagctg gagctgaaac gggctgatgc tgcaccaact 1260gtatccatct tcccaccatc cagtgagcag ttaacatctg gaggtgcctc agtcgtgtgc 1320ttcttgaaca acttctaccc caaagacatc aatgtcaagt ggaagattga tggcagtgaa 1380cgacaaaatg gcgtcctgaa cagttggact gatcaggaca gcaaagacag cacctacagc 1440atgagcagca ccctcacgtt gaccaaggac gagtatgaac gacataacag ctatacctgt 1500gaggccactc acaagacatc aacttcaccc attgtcaaga gcttcaacag gaatgagtgt 1560tagaggccta ttttctttag tttgaattta ctgttattcg gtgtgcattt ctatgtttgg 1620tgagcggttt tctgtgctca gagtgtgttt attttatgta atttaatttc tttgtgagct 1680cctgtttagc aggtcgtccc ttcagcaagg acacaaaaag attttaattt tattaaaaaa 1740aaaaaaaaaa aagaccggga attcgatatc aagcttatcg acctgcagat cgttcaaaca 1800tttggcaata aagtttctta agattgaatc ctgttgccgg tcttgcgatg attatcatat 1860aatttctgtt gaattacgtt aagcatgtaa taattaacat gtaatgcatg acgttattta 1920tgagatgggt ttttatgatt agagtcccgc aattatacat ttaatacgcg atagaaaaca 1980aaatatagcg cgcaaactag gataaattat cgcgcgcggt gtcatctatg ttactagatt 2040ctagagtctc aagcttcggc gcgcc 20658248DNAArtificial sequenceSpPDI-HA(Ind).c 82gttccttctc agatcttcgc tgatcagatt tgcattggtt accatgca 48833218DNAArtificial sequenceconstruct 663 from HindIII to EcoRI 83aagcttgcta gcggcctcaa tggccctgca ggtcgactct agaggtaccc cgggctggta 60tatttatatg ttgtcaaata actcaaaaac cataaaagtt taagttagca agtgtgtaca 120tttttacttg aacaaaaata ttcacctact actgttataa atcattatta aacattagag 180taaagaaata tggatgataa gaacaagagt agtgatattt tgacaacaat tttgttgcaa 240catttgagaa aattttgttg ttctctcttt tcattggtca aaaacaatag agagagaaaa 300aggaagaggg agaataaaaa cataatgtga gtatgagaga gaaagttgta caaaagttgt 360accaaaatag ttgtacaaat atcattgagg aatttgacaa aagctacaca aataagggtt 420aattgctgta aataaataag gatgacgcat tagagagatg taccattaga gaatttttgg 480caagtcatta aaaagaaaga ataaattatt tttaaaatta aaagttgagt catttgatta 540aacatgtgat tatttaatga attgatgaaa gagttggatt aaagttgtat tagtaattag 600aatttggtgt caaatttaat ttgacatttg atcttttcct atatattgcc ccatagagtc 660agttaactca tttttatatt tcatagatca aataagagaa ataacggtat attaatccct 720ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc cacgtaggag gataacagga 780tccccgtagg aggataacat ccaatccaac caatcacaac aatcctgatg agataaccca 840ctttaagccc acgcatctgt ggcacatcta cattatctaa atcacacatt cttccacaca 900tctgagccac acaaaaacca atccacatct ttatcaccca ttctataaaa aatcacactt 960tgtgagtcta cactttgatt cccttcaaac acatacaaag agaagagact aattaattaa 1020ttaatcatct tgagagaaaa tggcgaaaaa cgttgcgatt ttcggcttat tgttttctct 1080tcttgtgttg gttccttctc agatcttcgc tgatcagatt tgcattggtt accatgcaaa 1140caattcaaca gagcaggttg acacaatcat ggaaaagaac gttactgtta cacatgccca 1200agacatactg gaaaagacac acaacgggaa gctctgcgat ctagatggag tgaagcctct 1260aattttaaga gattgtagtg tagctggatg gctcctcggg aacccaatgt gtgacgaatt 1320catcaatgta ccggaatggt cttacatagt ggagaaggcc aatccaacca atgacctctg 1380ttacccaggg agtttcaacg actatgaaga actgaaacac ctattgagca gaataaacca 1440ttttgagaaa attcaaatca tccccaaaag ttcttggtcc gatcatgaag cctcatcagg 1500agttagctca gcatgtccat acctgggaag tccctccttt tttagaaatg tggtatggct 1560tatcaaaaag aacagtacat acccaacaat aaagaaaagc tacaataata ccaaccaaga 1620ggatcttttg gtactgtggg gaattcacca tcctaatgat gcggcagagc agacaaggct 1680atatcaaaac ccaaccacct atatttccat tgggacatca acactaaacc agagattggt 1740accaaaaata gctactagat ccaaagtaaa cgggcaaagt ggaaggatgg agttcttctg 1800gacaatttta aaacctaatg atgcaatcaa cttcgagagt aatggaaatt tcattgctcc 1860agaatatgca tacaaaattg tcaagaaagg ggactcagca attatgaaaa gtgaattgga 1920atatggtaac tgcaacacca agtgtcaaac tccaatgggg gcgataaact ctagtatgcc 1980attccacaac atacaccctc tcaccatcgg ggaatgcccc aaatatgtga aatcaaacag 2040attagtcctt gcaacagggc tcagaaatag ccctcaaaga gagagcagaa gaaaaaagag 2100aggactattt ggagctatag caggttttat agagggagga tggcagggaa tggtagatgg 2160ttggtatggg taccaccata gcaatgagca ggggagtggg tacgctgcag acaaagaatc 2220cactcaaaag gcaatagatg gagtcaccaa taaggtcaac tcaatcattg acaaaatgaa 2280cactcagttt gaggccgttg gaagggaatt taataactta gaaaggagaa tagagaattt 2340aaacaagaag atggaagacg ggtttctaga tgtctggact tataatgccg aacttctggt 2400tctcatggaa aatgagagaa ctctagactt tcatgactca aatgttaaga acctctacga 2460caaggtccga ctacagctta gggataatgc aaaggagctg ggtaacggtt gtttcgagtt 2520ctatcacaaa tgtgataatg aatgtatgga aagtataaga aacggaacgt acaactatcc 2580gcagtattca gaagaagcaa gattaaaaag agaggaaata agtggggtaa aattggaatc 2640aataggaact taccaaatac tgtcaattta ttcaacagtg gcgagttccc tagcactggc 2700aatcatgatg gctggtctat ctttatggat gtgctccaat ggatcgttac aatgcagaat 2760ttgcatttaa gagctctaag ttaaaatgct tcttcgtctc ctatttataa tatggtttgt 2820tattgttaat tttgttcttg tagaagagct taattaatcg ttgttgttat gaaatactat 2880ttgtatgaga tgaactggtg taatgtaatt catttacata agtggagtca gaatcagaat 2940gtttcctcca taactaacta gacatgaaga cctgccgcgt acaattgtct tatatttgaa 3000caactaaaat tgaacatctt ttgccacaac tttataagtg gttaatatag ctcaaatata 3060tggtcaagtt caatagatta ataatggaaa tatcagttat cgaaattcat taacaatcaa 3120cttaacgtta ttaactacta attttatatc atcccctttg ataaatgata gtacaccaat 3180taggaaggag catgctcgag gcctggctgg ccgaattc 32188449DNAArtificial sequenceSpPDI-H1B.c 84ttctcagatc ttcgctgaca caatatgtat aggctaccat gctaacaac 498547DNAArtificial sequenceSacI-H1B.r 85cttagagctc ttagatgcat attctacact gtaaagaccc attggaa 47863206DNAArtificial sequenceconstruct 787 from HindIII to EcoR1 86aagcttgcta gcggcctcaa tggccctgca ggtcgactct agaggtaccc cgggctggta 60tatttatatg ttgtcaaata actcaaaaac cataaaagtt taagttagca agtgtgtaca 120tttttacttg aacaaaaata ttcacctact actgttataa atcattatta aacattagag 180taaagaaata tggatgataa gaacaagagt agtgatattt tgacaacaat tttgttgcaa 240catttgagaa aattttgttg ttctctcttt tcattggtca aaaacaatag agagagaaaa 300aggaagaggg agaataaaaa cataatgtga gtatgagaga gaaagttgta caaaagttgt 360accaaaatag ttgtacaaat atcattgagg aatttgacaa aagctacaca aataagggtt 420aattgctgta aataaataag gatgacgcat tagagagatg taccattaga gaatttttgg 480caagtcatta aaaagaaaga ataaattatt tttaaaatta aaagttgagt catttgatta 540aacatgtgat tatttaatga attgatgaaa gagttggatt aaagttgtat tagtaattag 600aatttggtgt caaatttaat ttgacatttg atcttttcct atatattgcc ccatagagtc 660agttaactca tttttatatt tcatagatca aataagagaa ataacggtat attaatccct 720ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc cacgtaggag gataacagga 780tccccgtagg aggataacat ccaatccaac caatcacaac aatcctgatg agataaccca 840ctttaagccc acgcatctgt ggcacatcta cattatctaa atcacacatt cttccacaca 900tctgagccac acaaaaacca atccacatct ttatcaccca ttctataaaa aatcacactt 960tgtgagtcta cactttgatt cccttcaaac acatacaaag agaagagact aattaattaa 1020ttaatcatct tgagagaaaa tggcgaaaaa cgttgcgatt ttcggcttat tgttttctct 1080tcttgtgttg gttccttctc agatcttcgc tgacacaata tgtataggct accatgctaa 1140caactcgacc gacactgttg acacagtact tgaaaagaat gtgacagtga cacactctgt 1200caacctgctt gagaacagtc acaatggaaa actatgtcta ttaaaaggaa tagccccact 1260acaattgggt aattgcagcg ttgccgggtg gatcttagga aacccagaat gcgaattact 1320gatttccaag gagtcatggt cctacattgt agaaaaacca aatcctgaga atggaacatg 1380ttacccaggg catttcgctg actatgagga actgagggag caattgagtt cagtatcttc 1440atttgagagg ttcgaaatat tccccaaaga aagctcatgg cccaaccaca ccgtaaccgg 1500agtgtcagca tcatgctccc ataatgggga aagcagtttt tacagaaatt tgctatggct 1560gacggggaag aatggtttgt acccaaacct gagcaagtcc tatgcaaaca acaaagaaaa 1620agaagtcctt gtactatggg gtgttcatca cccgccaaac ataggtgacc aaaaggccct 1680ctatcataca gaaaatgctt atgtctctgt agtgtcttca cattatagca gaaaattcac 1740cccagaaata gccaaaagac ccaaagtaag agatcaagaa ggaagaatca attactactg 1800gactctgctt gaacccgggg atacaataat atttgaggca aatggaaatc taatagcgcc 1860aagatatgct ttcgcactga gtagaggctt tggatcagga atcatcaact caaatgcacc 1920aatggataaa tgtgatgcga agtgccaaac acctcaggga gctataaaca gcagtcttcc 1980tttccagaac gtacacccag tcacaatagg agagtgtcca aagtatgtca ggagtgcaaa 2040attaaggatg gttacaggac taaggaacat cccatccatt caatccagag gtttgtttgg 2100agccattgcc ggtttcattg aaggggggtg gactggaatg gtagatggtt ggtatggtta 2160tcatcatcag aatgagcaag gatctggcta tgctgcagat caaaaaagca cacaaaatgc 2220cattaatggg attacaaaca aggtcaattc tgtaattgag aaaatgaaca ctcaattcac 2280agcagtgggc aaagagttca acaaattgga aagaaggatg gaaaacttga ataaaaaagt 2340tgatgatggg tttatagaca tttggacata taatgcagaa ctgttggttc tactggaaaa 2400tgaaaggact ttggatttcc atgactccaa tgtgaagaat ctgtatgaga aagtaaaaag 2460ccagttaaag aataatgcta aagaaatagg aaatgggtgt tttgagttct atcacaagtg 2520taacgatgaa tgcatggaga gtgtaaagaa tggaacttat gactatccaa aatattccga 2580agaatcaaag ttaaacaggg agaaaattga tggagtgaaa ttggaatcaa tgggagtcta 2640tcagattctg gcgatctact caacagtcgc cagttctctg gttcttttgg tctccctggg 2700ggcaatcagc ttctggatgt gttccaatgg gtctttacag tgtagaatat gcatctaaga 2760gctctaagtt aaaatgcttc ttcgtctcct atttataata tggtttgtta ttgttaattt 2820tgttcttgta gaagagctta attaatcgtt gttgttatga aatactattt gtatgagatg 2880aactggtgta atgtaattca tttacataag tggagtcaga atcagaatgt ttcctccata 2940actaactaga catgaagacc tgccgcgtac aattgtctta tatttgaaca actaaaattg 3000aacatctttt gccacaactt tataagtggt taatatagct caaatatatg gtcaagttca 3060atagattaat aatggaaata tcagttatcg aaattcatta acaatcaact taacgttatt 3120aactactaat tttatatcat cccctttgat aaatgatagt acaccaatta ggaaggagca 3180tgctcgaggc ctggctggcc gaattc 32068745DNAArtificial sequenceH3B-SpPDI.r 87tgtcatttcc gggaagtttt tgagcgaaga tctgagaagg aacca 458845DNAArtificial sequenceSpPDI-H3B.c 88tctcagatct tcgctcaaaa acttcccgga aatgacaaca gcacg 458923DNAArtificial sequenceH3(A-Bri).982r 89ttgcttaaca tatctgggac agg 23903212DNAArtificial sequence`construct 790 from HindIII to EcoRI 90aagcttgcta gcggcctcaa tggccctgca ggtcgactct agaggtaccc cgggctggta 60tatttatatg ttgtcaaata actcaaaaac cataaaagtt taagttagca agtgtgtaca 120tttttacttg aacaaaaata ttcacctact actgttataa atcattatta aacattagag 180taaagaaata tggatgataa gaacaagagt agtgatattt tgacaacaat tttgttgcaa 240catttgagaa aattttgttg ttctctcttt tcattggtca aaaacaatag agagagaaaa 300aggaagaggg agaataaaaa cataatgtga gtatgagaga gaaagttgta caaaagttgt 360accaaaatag ttgtacaaat atcattgagg aatttgacaa aagctacaca aataagggtt 420aattgctgta aataaataag gatgacgcat tagagagatg taccattaga gaatttttgg 480caagtcatta aaaagaaaga ataaattatt tttaaaatta aaagttgagt catttgatta 540aacatgtgat tatttaatga attgatgaaa gagttggatt aaagttgtat tagtaattag 600aatttggtgt caaatttaat ttgacatttg atcttttcct atatattgcc ccatagagtc 660agttaactca tttttatatt tcatagatca aataagagaa ataacggtat attaatccct 720ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc cacgtaggag gataacagga 780tccccgtagg aggataacat ccaatccaac caatcacaac aatcctgatg agataaccca 840ctttaagccc acgcatctgt ggcacatcta cattatctaa atcacacatt cttccacaca 900tctgagccac acaaaaacca atccacatct ttatcaccca ttctataaaa aatcacactt 960tgtgagtcta cactttgatt cccttcaaac acatacaaag agaagagact aattaattaa 1020ttaatcatct tgagagaaaa tggcgaaaaa cgttgcgatt ttcggcttat tgttttctct 1080tcttgtgttg gttccttctc agatcttcgc tcaaaaactt cccggaaatg acaacagcac 1140ggcaacgctg tgccttgggc accatgcagt accaaacgga acgatagtga aaacaatcac 1200gaatgaccaa attgaagtta ctaatgctac tgagctggtt cagagttcct caacaggtga 1260aatatgcgac agtcctcatc agatccttga tggagaaaac tgcacactaa tagatgctct 1320attgggagac cctcagtgtg atggcttcca aaataagaaa tgggaccttt ttgttgaacg 1380cagcaaagcc tacagcaact gttaccctta tgatgtgccg gattatgcct cccttaggtc 1440actagttgcc tcatccggca cactggagtt taacaatgaa agtttcaatt ggactggagt 1500cactcaaaac ggaacaagct ctgcttgcat aaggagatct aataacagtt tctttagtag 1560attgaattgg ttgacccact taaaattcaa atacccagca ttgaacgtga ctatgccaaa 1620caatgaaaaa tttgacaaat tgtacatttg gggggttcac cacccgggta cggacaatga 1680ccaaatcttc ctgtatgctc aagcatcagg aagaatcaca gtctctacca aaagaagcca 1740acaaactgta atcccgaata tcggatctag acccagagta aggaatatcc ccagcagaat 1800aagcatctat tggacaatag taaaaccggg agacatactt ttgattaaca gcacagggaa 1860tctaattgct cctaggggtt acttcaaaat acgaagtggg aaaagctcaa taatgagatc 1920agatgcaccc attggcaaat gcaattctga atgcatcact ccaaacggaa gcattcccaa 1980tgacaaacca ttccaaaatg taaacaggat cacatacggg gcctgtccca gatatgttaa 2040gcaaaacact ctgaaattgg caacagggat gcgaaatgta ccagagaaac aaactagagg 2100catatttggc gcaatcgcgg gtttcataga aaatggttgg gagggaatgg tggatggttg 2160gtatggtttc aggcatcaaa attctgaggg aataggacaa gcagcagatc tcaaaagcac 2220tcaagcagca atcgatcaaa tcaatgggaa gctgaatagg ttgatcggga aaaccaacga 2280gaaattccat cagattgaaa aagagttctc agaagtcgaa gggagaatcc aggaccttga 2340gaaatatgtt gaggacacca aaatagatct ctggtcatac aacgcggagc ttcttgttgc 2400cctggagaac caacatacaa ttgatctaac tgactcagaa atgaacaaac tgtttgaaaa 2460aacaaagaag caactgaggg aaaatgctga ggatatgggc aatggttgtt tcaaaatata 2520ccacaaatgt gacaatgcct gcataggatc aatcagaaat ggaacttatg accacgatgt 2580atacagagat gaagcattaa acaaccggtt ccagatcaag ggcgttgagc tgaagtcagg 2640atacaaagat tggatactat ggatttcctt tgccatatca tgttttttgc tttgtgttgc 2700tttgttgggg ttcatcatgt gggcctgcca aaaaggcaac attaggtgca acatttgcat 2760ttgagagctc taagttaaaa tgcttcttcg tctcctattt ataatatggt ttgttattgt 2820taattttgtt cttgtagaag agcttaatta atcgttgttg ttatgaaata ctatttgtat 2880gagatgaact ggtgtaatgt aattcattta cataagtgga gtcagaatca gaatgtttcc 2940tccataacta actagacatg aagacctgcc gcgtacaatt gtcttatatt tgaacaacta 3000aaattgaaca tcttttgcca caactttata agtggttaat atagctcaaa tatatggtca 3060agttcaatag attaataatg gaaatatcag ttatcgaaat tcattaacaa tcaacttaac 3120gttattaact actaatttta tatcatcccc tttgataaat gatagtacac caattaggaa 3180ggagcatgct cgaggcctgg ctggccgaat tc 32129150DNAArtificial sequenceHBF-SpPDI.r 91gttattccag tgcagattcg atcagcgaag atctgagaag gaaccaacac 509250DNAArtificial sequenceSpPDI-HBF.c 92cagatcttcg ctgatcgaat ctgcactgga ataacatctt caaactcacc 509328DNAArtificial sequencePlaster80r 93caaatagtat ttcataacaa caacgatt 28943269DNAArtificial sequenceconstruct 798 from HindIII to EcoRI 94aagcttgcta gcggcctcaa tggccctgca ggtcgactct agaggtaccc cgggctggta 60tatttatatg ttgtcaaata actcaaaaac cataaaagtt taagttagca agtgtgtaca 120tttttacttg aacaaaaata ttcacctact actgttataa atcattatta aacattagag 180taaagaaata tggatgataa gaacaagagt agtgatattt tgacaacaat tttgttgcaa 240catttgagaa aattttgttg ttctctcttt tcattggtca aaaacaatag agagagaaaa 300aggaagaggg agaataaaaa cataatgtga gtatgagaga gaaagttgta caaaagttgt 360accaaaatag ttgtacaaat atcattgagg aatttgacaa aagctacaca aataagggtt 420aattgctgta aataaataag gatgacgcat tagagagatg taccattaga gaatttttgg 480caagtcatta aaaagaaaga ataaattatt tttaaaatta aaagttgagt catttgatta 540aacatgtgat tatttaatga attgatgaaa gagttggatt aaagttgtat tagtaattag 600aatttggtgt caaatttaat ttgacatttg atcttttcct atatattgcc ccatagagtc 660agttaactca tttttatatt tcatagatca aataagagaa ataacggtat attaatccct 720ccaaaaaaaa aaaacggtat atttactaaa aaatctaagc cacgtaggag gataacagga 780tccccgtagg aggataacat ccaatccaac caatcacaac aatcctgatg agataaccca 840ctttaagccc acgcatctgt ggcacatcta cattatctaa atcacacatt cttccacaca 900tctgagccac acaaaaacca atccacatct ttatcaccca ttctataaaa aatcacactt 960tgtgagtcta cactttgatt cccttcaaac acatacaaag agaagagact aattaattaa 1020ttaatcatct tgagagaaaa tggcgaaaaa cgttgcgatt ttcggcttat tgttttctct 1080tcttgtgttg gttccttctc agatcttcgc tgatcgaatc tgcactggaa taacatcttc 1140aaactcacct catgtggtca aaacagccac tcaaggggag gtcaatgtga ctggtgtgat 1200accactaaca acaacaccaa caaaatctta ttttgcaaat ctcaaaggaa caaggaccag 1260agggaaacta tgcccagact gtctcaactg cacagatctg gatgtggctt tgggcagacc 1320aatgtgtgtg gggaccacac cttcggcgaa ggcttcaata ctccacgaag tcaaacctgt 1380tacatccggg tgctttccta taatgcacga cagaacaaaa atcaggcaac tacccaatct 1440tctcagagga tatgaaaata tcaggctatc aacccaaaac gtcatcgatg cggaaaaggc 1500accaggagga ccctacagac ttggaacctc aggatcttgc cctaacgcta ccagtaagag

1560cggatttttc gcaacaatgg cttgggctgt cccaaaggac aacaacaaaa atgcaacgaa 1620cccactaaca gtagaagtac catacatttg tacagaaggg gaagaccaaa tcactgtttg 1680ggggttccat tcagataaca aaacccaaat gaagaacctc tatggagact caaatcctca 1740aaagttcacc tcatctgcta atggagtaac cacacactat gtttctcaga ttggcagctt 1800cccagatcaa acagaagacg gaggactacc acaaagcggc aggattgttg ttgattacat 1860gatgcaaaaa cctgggaaaa caggaacaat tgtctaccaa agaggtgttt tgttgcctca 1920aaaggtgtgg tgcgcgagtg gcaggagcaa agtaataaaa gggtccttgc ctttaattgg 1980tgaagcagat tgccttcatg aaaaatacgg tggattaaac aaaagcaagc cttactacac 2040aggagaacat gcaaaagcca taggaaattg cccaatatgg gtgaaaacac ctttgaagct 2100cgccaatgga accaaatata gacctcctgc aaaactatta aaggaaaggg gtttcttcgg 2160agctattgct ggtttcctag aaggaggatg ggaaggaatg attgcaggct ggcacggata 2220cacatctcac ggagcacatg gagtggcagt ggcggcggac cttaagagta cgcaagaagc 2280tataaacaag ataacaaaaa atctcaattc tttgagtgag ctagaagtaa agaatcttca 2340aagactaagt ggtgccatgg atgaactcca caacgaaata ctcgagctgg atgagaaagt 2400ggatgatctc agagctgaca ctataagctc gcaaatagaa cttgcagtct tgctttccaa 2460cgaaggaata ataaacagtg aagatgagca tctattggca cttgagagaa aactaaagaa 2520aatgctgggt ccctctgctg tagagatagg aaatggatgc ttcgaaacca aacacaagtg 2580caaccagacc tgcttagaca ggatagctgc tggcaccttt aatgcaggag aattttctct 2640ccccactttt gattcactga acattactgc tgcatcttta aatgatgatg gattggataa 2700ccatactata ctgctctatt actcaactgc tgcttctagt ttggctgtaa cattgatgct 2760agctattttt attgtttata tggtctccag agacaacgtt tcatgctcca tctgtctata 2820agagctctaa gttaaaatgc ttcttcgtct cctatttata atatggtttg ttattgttaa 2880ttttgttctt gtagaagagc ttaattaatc gttgttgtta tgaaatacta tttgtatgag 2940atgaactggt gtaatgtaat tcatttacat aagtggagtc agaatcagaa tgtttcctcc 3000ataactaact agacatgaag acctgccgcg tacaattgtc ttatatttga acaactaaaa 3060ttgaacatct tttgccacaa ctttataagt ggttaatata gctcaaatat atggtcaagt 3120tcaatagatt aataatggaa atatcagtta tcgaaattca ttaacaatca acttaacgtt 3180attaactact aattttatat catccccttt gataaatgat agtacaccaa ttaggaagga 3240gcatgctcga ggcctggctg gccgaattc 32699545DNAArtificial sequenceApaI-SpPDI.c 95ttgtcgggcc catggcgaaa aacgttgcga ttttcggctt attgt 459642DNAArtificial sequenceStuI-H1(A-NC).r 96aaaataggcc tttagatgca tattctacac tgcaaagacc ca 42973079DNAArtificial sequenceconstruct 580 from PacI to AscI 97ttaattaaga attcgagctc caccgcggaa acctcctcgg attccattgc ccagctatct 60gtcactttat tgagaagata gtggaaaagg aaggtggctc ctacaaatgc catcattgcg 120ataaaggaaa ggccatcgtt gaagatgcct ctgccgacag tggtcccaaa gatggacccc 180cacccacgag gagcatcgtg gaaaaagaag acgttccaac cacgtcttca aagcaagtgg 240attgatgtga tatctccact gacgtaaggg atgacgcaca atcccactat ccttcgcaag 300acccttcctc tatataagga agttcatttc atttggagag gtattaaaat cttaataggt 360tttgataaaa gcgaacgtgg ggaaacccga accaaacctt cttctaaact ctctctcatc 420tctcttaaag caaacttctc tcttgtcttt cttgcgtgag cgatcttcaa cgttgtcaga 480tcgtgcttcg gcaccagtac aacgttttct ttcactgaag cgaaatcaaa gatctctttg 540tggacacgta gtgcggcgcc attaaataac gtgtacttgt cctattcttg tcggtgtggt 600cttgggaaaa gaaagcttgc tggaggctgc tgttcagccc catacattac ttgttacgat 660tctgctgact ttcggcgggt gcaatatctc tacttctgct tgacgaggta ttgttgcctg 720tacttctttc ttcttcttct tgctgattgg ttctataaga aatctagtat tttctttgaa 780acagagtttt cccgtggttt tcgaacttgg agaaagattg ttaagcttct gtatattctg 840cccaaatttg tcgggcccat ggcgaaaaac gttgcgattt tcggcttatt gttttctctt 900cttgtgttgg ttccttctca gatcttcgct gacacaatat gtataggcta ccatgccaac 960aactcaaccg acactgttga cacagtactt gagaagaatg tgacagtgac acactctgtc 1020aacctacttg aggacagtca caatggaaaa ctatgtctac taaaaggaat agccccacta 1080caattgggta attgcagcgt tgccggatgg atcttaggaa acccagaatg cgaattactg 1140atttccaagg aatcatggtc ctacattgta gaaacaccaa atcctgagaa tggaacatgt 1200tacccagggt atttcgccga ctatgaggaa ctgagggagc aattgagttc agtatcttca 1260tttgagagat tcgaaatatt ccccaaagaa agctcatggc ccaaccacac cgtaaccgga 1320gtatcagcat catgctccca taatgggaaa agcagttttt acagaaattt gctatggctg 1380acggggaaga atggtttgta cccaaacctg agcaagtcct atgtaaacaa caaagagaaa 1440gaagtccttg tactatgggg tgttcatcac ccgcctaaca tagggaacca aagggcactc 1500tatcatacag aaaatgctta tgtctctgta gtgtcttcac attatagcag aagattcacc 1560ccagaaatag ccaaaagacc caaagtaaga gatcaggaag gaagaatcaa ctactactgg 1620actctgctgg aacctgggga tacaataata tttgaggcaa atggaaatct aatagcgcca 1680tggtatgctt ttgcactgag tagaggcttt ggatcaggaa tcatcacctc aaatgcacca 1740atggatgaat gtgatgcgaa gtgtcaaaca cctcagggag ctataaacag cagtcttcct 1800ttccagaatg tacacccagt cacaatagga gagtgtccaa agtatgtcag gagtgcaaaa 1860ttaaggatgg ttacaggact aaggaacatc ccatccattc aatccagagg tttgtttgga 1920gccattgccg gtttcattga aggggggtgg actggaatgg tagatgggtg gtatggttat 1980catcatcaga atgagcaagg atctggctat gctgcagatc aaaaaagtac acaaaatgcc 2040attaacggga ttacaaacaa ggtcaattct gtaattgaga aaatgaacac tcaattcaca 2100gctgtgggca aagagttcaa caaattggaa agaaggatgg aaaacttaaa taaaaaagtt 2160gatgatgggt ttctagacat ttggacatat aatgcagaat tgttggttct actggaaaat 2220gaaaggactt tggatttcca tgactccaat gtgaagaatc tgtatgagaa agtaaaaagc 2280caattaaaga ataatgccaa agaaatagga aacgggtgtt ttgagttcta tcacaagtgt 2340aacaatgaat gcatggagag tgtgaaaaat ggtacctatg actatccaaa atattccgaa 2400gaatcaaagt taaacaggga gaaaattgat ggagtgaaat tggaatcaat gggagtatac 2460cagattctgg cgatctactc aactgtcgcc agttccctgg ttcttttggt ctccctgggg 2520gcaatcagct tctggatgtg ttccaatggg tctttgcagt gtagaatatg catctaaagg 2580cctattttct ttagtttgaa tttactgtta ttcggtgtgc atttctatgt ttggtgagcg 2640gttttctgtg ctcagagtgt gtttatttta tgtaatttaa tttctttgtg agctcctgtt 2700tagcaggtcg tcccttcagc aaggacacaa aaagatttta attttattaa aaaaaaaaaa 2760aaaaaagacc gggaattcga tatcaagctt atcgacctgc agatcgttca aacatttggc 2820aataaagttt cttaagattg aatcctgttg ccggtcttgc gatgattatc atataatttc 2880tgttgaatta cgttaagcat gtaataatta acatgtaatg catgacgtta tttatgagat 2940gggtttttat gattagagtc ccgcaattat acatttaata cgcgatagaa aacaaaatat 3000agcgcgcaaa ctaggataaa ttatcgcgcg cggtgtcatc tatgttacta gattctagag 3060tctcaagctt cggcgcgcc 30799839DNAArtificial sequenceApaI-H5 (A-Indo).1c 98tgtcgggccc atggagaaaa tagtgcttct tcttgcaat 399937DNAArtificial sequenceH5 (A-Indo)-StuI.1707r 99aaataggcct ttaaatgcaa attctgcatt gtaacga 371003067DNAArtificial sequenceconstruct 685 from PacI to AscI 100ttaattaaga attcgagctc caccgcggaa acctcctcgg attccattgc ccagctatct 60gtcactttat tgagaagata gtggaaaagg aaggtggctc ctacaaatgc catcattgcg 120ataaaggaaa ggccatcgtt gaagatgcct ctgccgacag tggtcccaaa gatggacccc 180cacccacgag gagcatcgtg gaaaaagaag acgttccaac cacgtcttca aagcaagtgg 240attgatgtga tatctccact gacgtaaggg atgacgcaca atcccactat ccttcgcaag 300acccttcctc tatataagga agttcatttc atttggagag gtattaaaat cttaataggt 360tttgataaaa gcgaacgtgg ggaaacccga accaaacctt cttctaaact ctctctcatc 420tctcttaaag caaacttctc tcttgtcttt cttgcgtgag cgatcttcaa cgttgtcaga 480tcgtgcttcg gcaccagtac aacgttttct ttcactgaag cgaaatcaaa gatctctttg 540tggacacgta gtgcggcgcc attaaataac gtgtacttgt cctattcttg tcggtgtggt 600cttgggaaaa gaaagcttgc tggaggctgc tgttcagccc catacattac ttgttacgat 660tctgctgact ttcggcgggt gcaatatctc tacttctgct tgacgaggta ttgttgcctg 720tacttctttc ttcttcttct tgctgattgg ttctataaga aatctagtat tttctttgaa 780acagagtttt cccgtggttt tcgaacttgg agaaagattg ttaagcttct gtatattctg 840cccaaatttg tcgggcccat ggagaaaata gtgcttcttc ttgcaatagt cagtcttgtt 900aaaagtgatc agatttgcat tggttaccat gcaaacaatt caacagagca ggttgacaca 960atcatggaaa agaacgttac tgttacacat gcccaagaca tactggaaaa gacacacaac 1020gggaagctct gcgatctaga tggagtgaag cctctaattt taagagattg tagtgtagct 1080ggatggctcc tcgggaaccc aatgtgtgac gaattcatca atgtaccgga atggtcttac 1140atagtggaga aggccaatcc aaccaatgac ctctgttacc cagggagttt caacgactat 1200gaagaactga aacacctatt gagcagaata aaccattttg agaaaattca aatcatcccc 1260aaaagttctt ggtccgatca tgaagcctca tcaggagtta gctcagcatg tccatacctg 1320ggaagtccct ccttttttag aaatgtggta tggcttatca aaaagaacag tacataccca 1380acaataaaga aaagctacaa taataccaac caagaggatc ttttggtact gtggggaatt 1440caccatccta atgatgcggc agagcagaca aggctatatc aaaacccaac cacctatatt 1500tccattggga catcaacact aaaccagaga ttggtaccaa aaatagctac tagatccaaa 1560gtaaacgggc aaagtggaag gatggagttc ttctggacaa ttttaaaacc taatgatgca 1620atcaacttcg agagtaatgg aaatttcatt gctccagaat atgcatacaa aattgtcaag 1680aaaggggact cagcaattat gaaaagtgaa ttggaatatg gtaactgcaa caccaagtgt 1740caaactccaa tgggggcgat aaactctagt atgccattcc acaacataca ccctctcacc 1800atcggggaat gccccaaata tgtgaaatca aacagattag tccttgcaac agggctcaga 1860aatagccctc aaagagagag cagaagaaaa aagagaggac tatttggagc tatagcaggt 1920tttatagagg gaggatggca gggaatggta gatggttggt atgggtacca ccatagcaat 1980gagcagggga gtgggtacgc tgcagacaaa gaatccactc aaaaggcaat agatggagtc 2040accaataagg tcaactcaat cattgacaaa atgaacactc agtttgaggc cgttggaagg 2100gaatttaata acttagaaag gagaatagag aatttaaaca agaagatgga agacgggttt 2160ctagatgtct ggacttataa tgccgaactt ctggttctca tggaaaatga gagaactcta 2220gactttcatg actcaaatgt taagaacctc tacgacaagg tccgactaca gcttagggat 2280aatgcaaagg agctgggtaa cggttgtttc gagttctatc acaaatgtga taatgaatgt 2340atggaaagta taagaaacgg aacgtacaac tatccgcagt attcagaaga agcaagatta 2400aaaagagagg aaataagtgg ggtaaaattg gaatcaatag gaacttacca aatactgtca 2460atttattcaa cagtggcgag ttccctagca ctggcaatca tgatggctgg tctatcttta 2520tggatgtgct ccaatggatc gttacaatgc agaatttgca tttaaaggcc tattttcttt 2580agtttgaatt tactgttatt cggtgtgcat ttctatgttt ggtgagcggt tttctgtgct 2640cagagtgtgt ttattttatg taatttaatt tctttgtgag ctcctgttta gcaggtcgtc 2700ccttcagcaa ggacacaaaa agattttaat tttattaaaa aaaaaaaaaa aaaagaccgg 2760gaattcgata tcaagcttat cgacctgcag atcgttcaaa catttggcaa taaagtttct 2820taagattgaa tcctgttgcc ggtcttgcga tgattatcat ataatttctg ttgaattacg 2880ttaagcatgt aataattaac atgtaatgca tgacgttatt tatgagatgg gtttttatga 2940ttagagtccc gcaattatac atttaatacg cgatagaaaa caaaatatag cgcgcaaact 3000aggataaatt atcgcgcgcg gtgtcatcta tgttactaga ttctagagtc tcaagcttcg 3060gcgcgcc 30671013091DNAArtificial sequenceconstruct 686 from PacI to AscI 101ttaattaaga attcgagctc caccgcggaa acctcctcgg attccattgc ccagctatct 60gtcactttat tgagaagata gtggaaaagg aaggtggctc ctacaaatgc catcattgcg 120ataaaggaaa ggccatcgtt gaagatgcct ctgccgacag tggtcccaaa gatggacccc 180cacccacgag gagcatcgtg gaaaaagaag acgttccaac cacgtcttca aagcaagtgg 240attgatgtga tatctccact gacgtaaggg atgacgcaca atcccactat ccttcgcaag 300acccttcctc tatataagga agttcatttc atttggagag gtattaaaat cttaataggt 360tttgataaaa gcgaacgtgg ggaaacccga accaaacctt cttctaaact ctctctcatc 420tctcttaaag caaacttctc tcttgtcttt cttgcgtgag cgatcttcaa cgttgtcaga 480tcgtgcttcg gcaccagtac aacgttttct ttcactgaag cgaaatcaaa gatctctttg 540tggacacgta gtgcggcgcc attaaataac gtgtacttgt cctattcttg tcggtgtggt 600cttgggaaaa gaaagcttgc tggaggctgc tgttcagccc catacattac ttgttacgat 660tctgctgact ttcggcgggt gcaatatctc tacttctgct tgacgaggta ttgttgcctg 720tacttctttc ttcttcttct tgctgattgg ttctataaga aatctagtat tttctttgaa 780acagagtttt cccgtggttt tcgaacttgg agaaagattg ttaagcttct gtatattctg 840cccaaatttg tcgggcccat ggcgaaaaac gttgcgattt tcggcttatt gttttctctt 900cttgtgttgg ttccttctca gatcttcgct gatcagattt gcattggtta ccatgcaaac 960aattcaacag agcaggttga cacaatcatg gaaaagaacg ttactgttac acatgcccaa 1020gacatactgg aaaagacaca caacgggaag ctctgcgatc tagatggagt gaagcctcta 1080attttaagag attgtagtgt agctggatgg ctcctcggga acccaatgtg tgacgaattc 1140atcaatgtac cggaatggtc ttacatagtg gagaaggcca atccaaccaa tgacctctgt 1200tacccaggga gtttcaacga ctatgaagaa ctgaaacacc tattgagcag aataaaccat 1260tttgagaaaa ttcaaatcat ccccaaaagt tcttggtccg atcatgaagc ctcatcagga 1320gttagctcag catgtccata cctgggaagt ccctcctttt ttagaaatgt ggtatggctt 1380atcaaaaaga acagtacata cccaacaata aagaaaagct acaataatac caaccaagag 1440gatcttttgg tactgtgggg aattcaccat cctaatgatg cggcagagca gacaaggcta 1500tatcaaaacc caaccaccta tatttccatt gggacatcaa cactaaacca gagattggta 1560ccaaaaatag ctactagatc caaagtaaac gggcaaagtg gaaggatgga gttcttctgg 1620acaattttaa aacctaatga tgcaatcaac ttcgagagta atggaaattt cattgctcca 1680gaatatgcat acaaaattgt caagaaaggg gactcagcaa ttatgaaaag tgaattggaa 1740tatggtaact gcaacaccaa gtgtcaaact ccaatggggg cgataaactc tagtatgcca 1800ttccacaaca tacaccctct caccatcggg gaatgcccca aatatgtgaa atcaaacaga 1860ttagtccttg caacagggct cagaaatagc cctcaaagag agagcagaag aaaaaagaga 1920ggactatttg gagctatagc aggttttata gagggaggat ggcagggaat ggtagatggt 1980tggtatgggt accaccatag caatgagcag gggagtgggt acgctgcaga caaagaatcc 2040actcaaaagg caatagatgg agtcaccaat aaggtcaact caatcattga caaaatgaac 2100actcagtttg aggccgttgg aagggaattt aataacttag aaaggagaat agagaattta 2160aacaagaaga tggaagacgg gtttctagat gtctggactt ataatgccga acttctggtt 2220ctcatggaaa atgagagaac tctagacttt catgactcaa atgttaagaa cctctacgac 2280aaggtccgac tacagcttag ggataatgca aaggagctgg gtaacggttg tttcgagttc 2340tatcacaaat gtgataatga atgtatggaa agtataagaa acggaacgta caactatccg 2400cagtattcag aagaagcaag attaaaaaga gaggaaataa gtggggtaaa attggaatca 2460ataggaactt accaaatact gtcaatttat tcaacagtgg cgagttccct agcactggca 2520atcatgatgg ctggtctatc tttatggatg tgctccaatg gatcgttaca atgcagaatt 2580tgcatttaaa ggcctatttt ctttagtttg aatttactgt tattcggtgt gcatttctat 2640gtttggtgag cggttttctg tgctcagagt gtgtttattt tatgtaattt aatttctttg 2700tgagctcctg tttagcaggt cgtcccttca gcaaggacac aaaaagattt taattttatt 2760aaaaaaaaaa aaaaaaaaga ccgggaattc gatatcaagc ttatcgacct gcagatcgtt 2820caaacatttg gcaataaagt ttcttaagat tgaatcctgt tgccggtctt gcgatgatta 2880tcatataatt tctgttgaat tacgttaagc atgtaataat taacatgtaa tgcatgacgt 2940tatttatgag atgggttttt atgattagag tcccgcaatt atacatttaa tacgcgatag 3000aaaacaaaat atagcgcgca aactaggata aattatcgcg cgcggtgtca tctatgttac 3060tagattctag agtctcaagc ttcggcgcgc c 309110245DNAArtificial sequenceApaI-H1B.c 102tgtcgggccc atgaaagtaa aactactggt cctgttatgc acatt 4510346DNAArtificial sequenceStuI-H2B.r 103aaataggcct ttagatgcat attctacact gtaaagaccc attgga 461043058DNAArtificial sequenceconstruct 732 from PacI to AscI 104ttaattaaga attcgagctc caccgcggaa acctcctcgg attccattgc ccagctatct 60gtcactttat tgagaagata gtggaaaagg aaggtggctc ctacaaatgc catcattgcg 120ataaaggaaa ggccatcgtt gaagatgcct ctgccgacag tggtcccaaa gatggacccc 180cacccacgag gagcatcgtg gaaaaagaag acgttccaac cacgtcttca aagcaagtgg 240attgatgtga tatctccact gacgtaaggg atgacgcaca atcccactat ccttcgcaag 300acccttcctc tatataagga agttcatttc atttggagag gtattaaaat cttaataggt 360tttgataaaa gcgaacgtgg ggaaacccga accaaacctt cttctaaact ctctctcatc 420tctcttaaag caaacttctc tcttgtcttt cttgcgtgag cgatcttcaa cgttgtcaga 480tcgtgcttcg gcaccagtac aacgttttct ttcactgaag cgaaatcaaa gatctctttg 540tggacacgta gtgcggcgcc attaaataac gtgtacttgt cctattcttg tcggtgtggt 600cttgggaaaa gaaagcttgc tggaggctgc tgttcagccc catacattac ttgttacgat 660tctgctgact ttcggcgggt gcaatatctc tacttctgct tgacgaggta ttgttgcctg 720tacttctttc ttcttcttct tgctgattgg ttctataaga aatctagtat tttctttgaa 780acagagtttt cccgtggttt tcgaacttgg agaaagattg ttaagcttct gtatattctg 840cccaaatttg tcgggcccat gaaagtaaaa ctactggtcc tgttatgcac atttacagct 900acatatgcag acacaatatg tataggctac catgctaaca actcgaccga cactgttgac 960acagtacttg aaaagaatgt gacagtgaca cactctgtca acctgcttga gaacagtcac 1020aatggaaaac tatgtctatt aaaaggaata gccccactac aattgggtaa ttgcagcgtt 1080gccgggtgga tcttaggaaa cccagaatgc gaattactga tttccaagga gtcatggtcc 1140tacattgtag aaaaaccaaa tcctgagaat ggaacatgtt acccagggca tttcgctgac 1200tatgaggaac tgagggagca attgagttca gtatcttcat ttgagaggtt cgaaatattc 1260cccaaagaaa gctcatggcc caaccacacc gtaaccggag tgtcagcatc atgctcccat 1320aatggggaaa gcagttttta cagaaatttg ctatggctga cggggaagaa tggtttgtac 1380ccaaacctga gcaagtccta tgcaaacaac aaagaaaaag aagtccttgt actatggggt 1440gttcatcacc cgccaaacat aggtgaccaa aaggccctct atcatacaga aaatgcttat 1500gtctctgtag tgtcttcaca ttatagcaga aaattcaccc cagaaatagc caaaagaccc 1560aaagtaagag atcaagaagg aagaatcaat tactactgga ctctgcttga acccggggat 1620acaataatat ttgaggcaaa tggaaatcta atagcgccaa gatatgcttt cgcactgagt 1680agaggctttg gatcaggaat catcaactca aatgcaccaa tggataaatg tgatgcgaag 1740tgccaaacac ctcagggagc tataaacagc agtcttcctt tccagaacgt acacccagtc 1800acaataggag agtgtccaaa gtatgtcagg agtgcaaaat taaggatggt tacaggacta 1860aggaacatcc catccattca atccagaggt ttgtttggag ccattgccgg tttcattgaa 1920ggggggtgga ctggaatggt agatggttgg tatggttatc atcatcagaa tgagcaagga 1980tctggctatg ctgcagatca aaaaagcaca caaaatgcca ttaatgggat tacaaacaag 2040gtcaattctg taattgagaa aatgaacact caattcacag cagtgggcaa agagttcaac 2100aaattggaaa gaaggatgga aaacttgaat aaaaaagttg atgatgggtt tatagacatt 2160tggacatata atgcagaact gttggttcta ctggaaaatg aaaggacttt ggatttccat 2220gactccaatg tgaagaatct gtatgagaaa gtaaaaagcc agttaaagaa taatgctaaa 2280gaaataggaa atgggtgttt tgagttctat cacaagtgta acgatgaatg catggagagt 2340gtaaagaatg gaacttatga ctatccaaaa tattccgaag aatcaaagtt aaacagggag 2400aaaattgatg gagtgaaatt ggaatcaatg ggagtctatc agattctggc gatctactca 2460acagtcgcca gttctctggt tcttttggtc tccctggggg caatcagctt ctggatgtgt 2520tccaatgggt ctttacagtg tagaatatgc atctaaaggc ctattttctt tagtttgaat 2580ttactgttat tcggtgtgca tttctatgtt tggtgagcgg ttttctgtgc tcagagtgtg 2640tttattttat gtaatttaat ttctttgtga gctcctgttt agcaggtcgt cccttcagca 2700aggacacaaa aagattttaa ttttattaaa aaaaaaaaaa aaaaagaccg ggaattcgat 2760atcaagctta tcgacctgca gatcgttcaa acatttggca ataaagtttc ttaagattga 2820atcctgttgc cggtcttgcg atgattatca tataatttct gttgaattac gttaagcatg 2880taataattaa catgtaatgc atgacgttat ttatgagatg ggtttttatg attagagtcc 2940cgcaattata catttaatac gcgatagaaa acaaaatata gcgcgcaaac taggataaat 3000tatcgcgcgc ggtgtcatct atgttactag attctagagt ctcaagcttc ggcgcgcc 30581053079DNAArtificial sequenceconstruct 733 from PacI to

AscI 105ttaattaaga attcgagctc caccgcggaa acctcctcgg attccattgc ccagctatct 60gtcactttat tgagaagata gtggaaaagg aaggtggctc ctacaaatgc catcattgcg 120ataaaggaaa ggccatcgtt gaagatgcct ctgccgacag tggtcccaaa gatggacccc 180cacccacgag gagcatcgtg gaaaaagaag acgttccaac cacgtcttca aagcaagtgg 240attgatgtga tatctccact gacgtaaggg atgacgcaca atcccactat ccttcgcaag 300acccttcctc tatataagga agttcatttc atttggagag gtattaaaat cttaataggt 360tttgataaaa gcgaacgtgg ggaaacccga accaaacctt cttctaaact ctctctcatc 420tctcttaaag caaacttctc tcttgtcttt cttgcgtgag cgatcttcaa cgttgtcaga 480tcgtgcttcg gcaccagtac aacgttttct ttcactgaag cgaaatcaaa gatctctttg 540tggacacgta gtgcggcgcc attaaataac gtgtacttgt cctattcttg tcggtgtggt 600cttgggaaaa gaaagcttgc tggaggctgc tgttcagccc catacattac ttgttacgat 660tctgctgact ttcggcgggt gcaatatctc tacttctgct tgacgaggta ttgttgcctg 720tacttctttc ttcttcttct tgctgattgg ttctataaga aatctagtat tttctttgaa 780acagagtttt cccgtggttt tcgaacttgg agaaagattg ttaagcttct gtatattctg 840cccaaatttg tcgggcccat ggcgaaaaac gttgcgattt tcggcttatt gttttctctt 900cttgtgttgg ttccttctca gatcttcgct gacacaatat gtataggcta ccatgctaac 960aactcgaccg acactgttga cacagtactt gaaaagaatg tgacagtgac acactctgtc 1020aacctgcttg agaacagtca caatggaaaa ctatgtctat taaaaggaat agccccacta 1080caattgggta attgcagcgt tgccgggtgg atcttaggaa acccagaatg cgaattactg 1140atttccaagg agtcatggtc ctacattgta gaaaaaccaa atcctgagaa tggaacatgt 1200tacccagggc atttcgctga ctatgaggaa ctgagggagc aattgagttc agtatcttca 1260tttgagaggt tcgaaatatt ccccaaagaa agctcatggc ccaaccacac cgtaaccgga 1320gtgtcagcat catgctccca taatggggaa agcagttttt acagaaattt gctatggctg 1380acggggaaga atggtttgta cccaaacctg agcaagtcct atgcaaacaa caaagaaaaa 1440gaagtccttg tactatgggg tgttcatcac ccgccaaaca taggtgacca aaaggccctc 1500tatcatacag aaaatgctta tgtctctgta gtgtcttcac attatagcag aaaattcacc 1560ccagaaatag ccaaaagacc caaagtaaga gatcaagaag gaagaatcaa ttactactgg 1620actctgcttg aacccgggga tacaataata tttgaggcaa atggaaatct aatagcgcca 1680agatatgctt tcgcactgag tagaggcttt ggatcaggaa tcatcaactc aaatgcacca 1740atggataaat gtgatgcgaa gtgccaaaca cctcagggag ctataaacag cagtcttcct 1800ttccagaacg tacacccagt cacaatagga gagtgtccaa agtatgtcag gagtgcaaaa 1860ttaaggatgg ttacaggact aaggaacatc ccatccattc aatccagagg tttgtttgga 1920gccattgccg gtttcattga aggggggtgg actggaatgg tagatggttg gtatggttat 1980catcatcaga atgagcaagg atctggctat gctgcagatc aaaaaagcac acaaaatgcc 2040attaatggga ttacaaacaa ggtcaattct gtaattgaga aaatgaacac tcaattcaca 2100gcagtgggca aagagttcaa caaattggaa agaaggatgg aaaacttgaa taaaaaagtt 2160gatgatgggt ttatagacat ttggacatat aatgcagaac tgttggttct actggaaaat 2220gaaaggactt tggatttcca tgactccaat gtgaagaatc tgtatgagaa agtaaaaagc 2280cagttaaaga ataatgctaa agaaatagga aatgggtgtt ttgagttcta tcacaagtgt 2340aacgatgaat gcatggagag tgtaaagaat ggaacttatg actatccaaa atattccgaa 2400gaatcaaagt taaacaggga gaaaattgat ggagtgaaat tggaatcaat gggagtctat 2460cagattctgg cgatctactc aacagtcgcc agttctctgg ttcttttggt ctccctgggg 2520gcaatcagct tctggatgtg ttccaatggg tctttacagt gtagaatatg catctaaagg 2580cctattttct ttagtttgaa tttactgtta ttcggtgtgc atttctatgt ttggtgagcg 2640gttttctgtg ctcagagtgt gtttatttta tgtaatttaa tttctttgtg agctcctgtt 2700tagcaggtcg tcccttcagc aaggacacaa aaagatttta attttattaa aaaaaaaaaa 2760aaaaaagacc gggaattcga tatcaagctt atcgacctgc agatcgttca aacatttggc 2820aataaagttt cttaagattg aatcctgttg ccggtcttgc gatgattatc atataatttc 2880tgttgaatta cgttaagcat gtaataatta acatgtaatg catgacgtta tttatgagat 2940gggtttttat gattagagtc ccgcaattat acatttaata cgcgatagaa aacaaaatat 3000agcgcgcaaa ctaggataaa ttatcgcgcg cggtgtcatc tatgttacta gattctagag 3060tctcaagctt cggcgcgcc 307910648DNAArtificial sequenceApaI-H3B.c 106ttgtcgggcc catgaagact atcattgctt tgagctacat tctatgtc 4810744DNAArtificial sequenceStuI-H3B.r 107aaaataggcc ttcaaatgca aatgttgcac ctaatgttgc cttt 441083061DNAArtificial sequenceconstruct 735 from PacI to AscI 108ttaattaaga attcgagctc caccgcggaa acctcctcgg attccattgc ccagctatct 60gtcactttat tgagaagata gtggaaaagg aaggtggctc ctacaaatgc catcattgcg 120ataaaggaaa ggccatcgtt gaagatgcct ctgccgacag tggtcccaaa gatggacccc 180cacccacgag gagcatcgtg gaaaaagaag acgttccaac cacgtcttca aagcaagtgg 240attgatgtga tatctccact gacgtaaggg atgacgcaca atcccactat ccttcgcaag 300acccttcctc tatataagga agttcatttc atttggagag gtattaaaat cttaataggt 360tttgataaaa gcgaacgtgg ggaaacccga accaaacctt cttctaaact ctctctcatc 420tctcttaaag caaacttctc tcttgtcttt cttgcgtgag cgatcttcaa cgttgtcaga 480tcgtgcttcg gcaccagtac aacgttttct ttcactgaag cgaaatcaaa gatctctttg 540tggacacgta gtgcggcgcc attaaataac gtgtacttgt cctattcttg tcggtgtggt 600cttgggaaaa gaaagcttgc tggaggctgc tgttcagccc catacattac ttgttacgat 660tctgctgact ttcggcgggt gcaatatctc tacttctgct tgacgaggta ttgttgcctg 720tacttctttc ttcttcttct tgctgattgg ttctataaga aatctagtat tttctttgaa 780acagagtttt cccgtggttt tcgaacttgg agaaagattg ttaagcttct gtatattctg 840cccaaatttg tcgggcccat gaagactatc attgctttga gctacattct atgtctggtt 900ttcactcaaa aacttcccgg aaatgacaac agcacggcaa cgctgtgcct tgggcaccat 960gcagtaccaa acggaacgat agtgaaaaca atcacgaatg accaaattga agttactaat 1020gctactgagc tggttcagag ttcctcaaca ggtgaaatat gcgacagtcc tcatcagatc 1080cttgatggag aaaactgcac actaatagat gctctattgg gagaccctca gtgtgatggc 1140ttccaaaata agaaatggga cctttttgtt gaacgcagca aagcctacag caactgttac 1200ccttatgatg tgccggatta tgcctccctt aggtcactag ttgcctcatc cggcacactg 1260gagtttaaca atgaaagttt caattggact ggagtcactc aaaacggaac aagctctgct 1320tgcataagga gatctaataa cagtttcttt agtagattga attggttgac ccacttaaaa 1380ttcaaatacc cagcattgaa cgtgactatg ccaaacaatg aaaaatttga caaattgtac 1440atttgggggg ttcaccaccc gggtacggac aatgaccaaa tcttcctgta tgctcaagca 1500tcaggaagaa tcacagtctc taccaaaaga agccaacaaa ctgtaatccc gaatatcgga 1560tctagaccca gagtaaggaa tatccccagc agaataagca tctattggac aatagtaaaa 1620ccgggagaca tacttttgat taacagcaca gggaatctaa ttgctcctag gggttacttc 1680aaaatacgaa gtgggaaaag ctcaataatg agatcagatg cacccattgg caaatgcaat 1740tctgaatgca tcactccaaa cggaagcatt cccaatgaca aaccattcca aaatgtaaac 1800aggatcacat acggggcctg tcccagatat gttaagcaaa acactctgaa attggcaaca 1860gggatgcgaa atgtaccaga gaaacaaact agaggcatat ttggcgcaat cgcgggtttc 1920atagaaaatg gttgggaggg aatggtggat ggttggtatg gtttcaggca tcaaaattct 1980gagggaatag gacaagcagc agatctcaaa agcactcaag cagcaatcga tcaaatcaat 2040gggaagctga ataggttgat cgggaaaacc aacgagaaat tccatcagat tgaaaaagag 2100ttctcagaag tcgaagggag aatccaggac cttgagaaat atgttgagga caccaaaata 2160gatctctggt catacaacgc ggagcttctt gttgccctgg agaaccaaca tacaattgat 2220ctaactgact cagaaatgaa caaactgttt gaaaaaacaa agaagcaact gagggaaaat 2280gctgaggata tgggcaatgg ttgtttcaaa atataccaca aatgtgacaa tgcctgcata 2340ggatcaatca gaaatggaac ttatgaccac gatgtataca gagatgaagc attaaacaac 2400cggttccaga tcaagggcgt tgagctgaag tcaggataca aagattggat actatggatt 2460tcctttgcca tatcatgttt tttgctttgt gttgctttgt tggggttcat catgtgggcc 2520tgccaaaaag gcaacattag gtgcaacatt tgcatttgaa ggcctatttt ctttagtttg 2580aatttactgt tattcggtgt gcatttctat gtttggtgag cggttttctg tgctcagagt 2640gtgtttattt tatgtaattt aatttctttg tgagctcctg tttagcaggt cgtcccttca 2700gcaaggacac aaaaagattt taattttatt aaaaaaaaaa aaaaaaaaga ccgggaattc 2760gatatcaagc ttatcgacct gcagatcgtt caaacatttg gcaataaagt ttcttaagat 2820tgaatcctgt tgccggtctt gcgatgatta tcatataatt tctgttgaat tacgttaagc 2880atgtaataat taacatgtaa tgcatgacgt tatttatgag atgggttttt atgattagag 2940tcccgcaatt atacatttaa tacgcgatag aaaacaaaat atagcgcgca aactaggata 3000aattatcgcg cgcggtgtca tctatgttac tagattctag agtctcaagc ttcggcgcgc 3060c 30611093085DNAArtificial sequenceconstruct 736, from PacI to AscI 109ttaattaaga attcgagctc caccgcggaa acctcctcgg attccattgc ccagctatct 60gtcactttat tgagaagata gtggaaaagg aaggtggctc ctacaaatgc catcattgcg 120ataaaggaaa ggccatcgtt gaagatgcct ctgccgacag tggtcccaaa gatggacccc 180cacccacgag gagcatcgtg gaaaaagaag acgttccaac cacgtcttca aagcaagtgg 240attgatgtga tatctccact gacgtaaggg atgacgcaca atcccactat ccttcgcaag 300acccttcctc tatataagga agttcatttc atttggagag gtattaaaat cttaataggt 360tttgataaaa gcgaacgtgg ggaaacccga accaaacctt cttctaaact ctctctcatc 420tctcttaaag caaacttctc tcttgtcttt cttgcgtgag cgatcttcaa cgttgtcaga 480tcgtgcttcg gcaccagtac aacgttttct ttcactgaag cgaaatcaaa gatctctttg 540tggacacgta gtgcggcgcc attaaataac gtgtacttgt cctattcttg tcggtgtggt 600cttgggaaaa gaaagcttgc tggaggctgc tgttcagccc catacattac ttgttacgat 660tctgctgact ttcggcgggt gcaatatctc tacttctgct tgacgaggta ttgttgcctg 720tacttctttc ttcttcttct tgctgattgg ttctataaga aatctagtat tttctttgaa 780acagagtttt cccgtggttt tcgaacttgg agaaagattg ttaagcttct gtatattctg 840cccaaatttg tcgggcccat ggcgaaaaac gttgcgattt tcggcttatt gttttctctt 900cttgtgttgg ttccttctca gatcttcgct caaaaacttc ccggaaatga caacagcacg 960gcaacgctgt gccttgggca ccatgcagta ccaaacggaa cgatagtgaa aacaatcacg 1020aatgaccaaa ttgaagttac taatgctact gagctggttc agagttcctc aacaggtgaa 1080atatgcgaca gtcctcatca gatccttgat ggagaaaact gcacactaat agatgctcta 1140ttgggagacc ctcagtgtga tggcttccaa aataagaaat gggacctttt tgttgaacgc 1200agcaaagcct acagcaactg ttacccttat gatgtgccgg attatgcctc ccttaggtca 1260ctagttgcct catccggcac actggagttt aacaatgaaa gtttcaattg gactggagtc 1320actcaaaacg gaacaagctc tgcttgcata aggagatcta ataacagttt ctttagtaga 1380ttgaattggt tgacccactt aaaattcaaa tacccagcat tgaacgtgac tatgccaaac 1440aatgaaaaat ttgacaaatt gtacatttgg ggggttcacc acccgggtac ggacaatgac 1500caaatcttcc tgtatgctca agcatcagga agaatcacag tctctaccaa aagaagccaa 1560caaactgtaa tcccgaatat cggatctaga cccagagtaa ggaatatccc cagcagaata 1620agcatctatt ggacaatagt aaaaccggga gacatacttt tgattaacag cacagggaat 1680ctaattgctc ctaggggtta cttcaaaata cgaagtggga aaagctcaat aatgagatca 1740gatgcaccca ttggcaaatg caattctgaa tgcatcactc caaacggaag cattcccaat 1800gacaaaccat tccaaaatgt aaacaggatc acatacgggg cctgtcccag atatgttaag 1860caaaacactc tgaaattggc aacagggatg cgaaatgtac cagagaaaca aactagaggc 1920atatttggcg caatcgcggg tttcatagaa aatggttggg agggaatggt ggatggttgg 1980tatggtttca ggcatcaaaa ttctgaggga ataggacaag cagcagatct caaaagcact 2040caagcagcaa tcgatcaaat caatgggaag ctgaataggt tgatcgggaa aaccaacgag 2100aaattccatc agattgaaaa agagttctca gaagtcgaag ggagaatcca ggaccttgag 2160aaatatgttg aggacaccaa aatagatctc tggtcataca acgcggagct tcttgttgcc 2220ctggagaacc aacatacaat tgatctaact gactcagaaa tgaacaaact gtttgaaaaa 2280acaaagaagc aactgaggga aaatgctgag gatatgggca atggttgttt caaaatatac 2340cacaaatgtg acaatgcctg cataggatca atcagaaatg gaacttatga ccacgatgta 2400tacagagatg aagcattaaa caaccggttc cagatcaagg gcgttgagct gaagtcagga 2460tacaaagatt ggatactatg gatttccttt gccatatcat gttttttgct ttgtgttgct 2520ttgttggggt tcatcatgtg ggcctgccaa aaaggcaaca ttaggtgcaa catttgcatt 2580tgaaggccta ttttctttag tttgaattta ctgttattcg gtgtgcattt ctatgtttgg 2640tgagcggttt tctgtgctca gagtgtgttt attttatgta atttaatttc tttgtgagct 2700cctgtttagc aggtcgtccc ttcagcaagg acacaaaaag attttaattt tattaaaaaa 2760aaaaaaaaaa aagaccggga attcgatatc aagcttatcg acctgcagat cgttcaaaca 2820tttggcaata aagtttctta agattgaatc ctgttgccgg tcttgcgatg attatcatat 2880aatttctgtt gaattacgtt aagcatgtaa taattaacat gtaatgcatg acgttattta 2940tgagatgggt ttttatgatt agagtcccgc aattatacat ttaatacgcg atagaaaaca 3000aaatatagcg cgcaaactag gataaattat cgcgcgcggt gtcatctatg ttactagatt 3060ctagagtctc aagcttcggc gcgcc 308511046DNAArtificial sequenceApI-HBF.c 110ttgtcgggcc catgaaggca ataattgtac tactcatggt agtaac 4611146DNAArtificial sequenceStuI-HBF.r 111aaaataggcc tttatagaca gatggagcat gaaacgttgt ctctgg 461123115DNAArtificial sequence`Construct 738 from PacI to AscI 112ttaattaaga attcgagctc caccgcggaa acctcctcgg attccattgc ccagctatct 60gtcactttat tgagaagata gtggaaaagg aaggtggctc ctacaaatgc catcattgcg 120ataaaggaaa ggccatcgtt gaagatgcct ctgccgacag tggtcccaaa gatggacccc 180cacccacgag gagcatcgtg gaaaaagaag acgttccaac cacgtcttca aagcaagtgg 240attgatgtga tatctccact gacgtaaggg atgacgcaca atcccactat ccttcgcaag 300acccttcctc tatataagga agttcatttc atttggagag gtattaaaat cttaataggt 360tttgataaaa gcgaacgtgg ggaaacccga accaaacctt cttctaaact ctctctcatc 420tctcttaaag caaacttctc tcttgtcttt cttgcgtgag cgatcttcaa cgttgtcaga 480tcgtgcttcg gcaccagtac aacgttttct ttcactgaag cgaaatcaaa gatctctttg 540tggacacgta gtgcggcgcc attaaataac gtgtacttgt cctattcttg tcggtgtggt 600cttgggaaaa gaaagcttgc tggaggctgc tgttcagccc catacattac ttgttacgat 660tctgctgact ttcggcgggt gcaatatctc tacttctgct tgacgaggta ttgttgcctg 720tacttctttc ttcttcttct tgctgattgg ttctataaga aatctagtat tttctttgaa 780acagagtttt cccgtggttt tcgaacttgg agaaagattg ttaagcttct gtatattctg 840cccaaatttg tcgggcccat gaaggcaata attgtactac tcatggtagt aacatccaat 900gcagatcgaa tctgcactgg aataacatct tcaaactcac ctcatgtggt caaaacagcc 960actcaagggg aggtcaatgt gactggtgtg ataccactaa caacaacacc aacaaaatct 1020tattttgcaa atctcaaagg aacaaggacc agagggaaac tatgcccaga ctgtctcaac 1080tgcacagatc tggatgtggc tttgggcaga ccaatgtgtg tggggaccac accttcggcg 1140aaggcttcaa tactccacga agtcaaacct gttacatccg ggtgctttcc tataatgcac 1200gacagaacaa aaatcaggca actacccaat cttctcagag gatatgaaaa tatcaggcta 1260tcaacccaaa acgtcatcga tgcggaaaag gcaccaggag gaccctacag acttggaacc 1320tcaggatctt gccctaacgc taccagtaag agcggatttt tcgcaacaat ggcttgggct 1380gtcccaaagg acaacaacaa aaatgcaacg aacccactaa cagtagaagt accatacatt 1440tgtacagaag gggaagacca aatcactgtt tgggggttcc attcagataa caaaacccaa 1500atgaagaacc tctatggaga ctcaaatcct caaaagttca cctcatctgc taatggagta 1560accacacact atgtttctca gattggcagc ttcccagatc aaacagaaga cggaggacta 1620ccacaaagcg gcaggattgt tgttgattac atgatgcaaa aacctgggaa aacaggaaca 1680attgtctacc aaagaggtgt tttgttgcct caaaaggtgt ggtgcgcgag tggcaggagc 1740aaagtaataa aagggtcctt gcctttaatt ggtgaagcag attgccttca tgaaaaatac 1800ggtggattaa acaaaagcaa gccttactac acaggagaac atgcaaaagc cataggaaat 1860tgcccaatat gggtgaaaac acctttgaag ctcgccaatg gaaccaaata tagacctcct 1920gcaaaactat taaaggaaag gggtttcttc ggagctattg ctggtttcct agaaggagga 1980tgggaaggaa tgattgcagg ctggcacgga tacacatctc acggagcaca tggagtggca 2040gtggcggcgg accttaagag tacgcaagaa gctataaaca agataacaaa aaatctcaat 2100tctttgagtg agctagaagt aaagaatctt caaagactaa gtggtgccat ggatgaactc 2160cacaacgaaa tactcgagct ggatgagaaa gtggatgatc tcagagctga cactataagc 2220tcgcaaatag aacttgcagt cttgctttcc aacgaaggaa taataaacag tgaagatgag 2280catctattgg cacttgagag aaaactaaag aaaatgctgg gtccctctgc tgtagagata 2340ggaaatggat gcttcgaaac caaacacaag tgcaaccaga cctgcttaga caggatagct 2400gctggcacct ttaatgcagg agaattttct ctccccactt ttgattcact gaacattact 2460gctgcatctt taaatgatga tggattggat aaccatacta tactgctcta ttactcaact 2520gctgcttcta gtttggctgt aacattgatg ctagctattt ttattgttta tatggtctcc 2580agagacaacg tttcatgctc catctgtcta taaaggccta ttttctttag tttgaattta 2640ctgttattcg gtgtgcattt ctatgtttgg tgagcggttt tctgtgctca gagtgtgttt 2700attttatgta atttaatttc tttgtgagct cctgtttagc aggtcgtccc ttcagcaagg 2760acacaaaaag attttaattt tattaaaaaa aaaaaaaaaa aagaccggga attcgatatc 2820aagcttatcg acctgcagat cgttcaaaca tttggcaata aagtttctta agattgaatc 2880ctgttgccgg tcttgcgatg attatcatat aatttctgtt gaattacgtt aagcatgtaa 2940taattaacat gtaatgcatg acgttattta tgagatgggt ttttatgatt agagtcccgc 3000aattatacat ttaatacgcg atagaaaaca aaatatagcg cgcaaactag gataaattat 3060cgcgcgcggt gtcatctatg ttactagatt ctagagtctc aagcttcggc gcgcc 31151133142DNAArtificial sequenceConstruct 739 from PacI to AscI 113ttaattaaga attcgagctc caccgcggaa acctcctcgg attccattgc ccagctatct 60gtcactttat tgagaagata gtggaaaagg aaggtggctc ctacaaatgc catcattgcg 120ataaaggaaa ggccatcgtt gaagatgcct ctgccgacag tggtcccaaa gatggacccc 180cacccacgag gagcatcgtg gaaaaagaag acgttccaac cacgtcttca aagcaagtgg 240attgatgtga tatctccact gacgtaaggg atgacgcaca atcccactat ccttcgcaag 300acccttcctc tatataagga agttcatttc atttggagag gtattaaaat cttaataggt 360tttgataaaa gcgaacgtgg ggaaacccga accaaacctt cttctaaact ctctctcatc 420tctcttaaag caaacttctc tcttgtcttt cttgcgtgag cgatcttcaa cgttgtcaga 480tcgtgcttcg gcaccagtac aacgttttct ttcactgaag cgaaatcaaa gatctctttg 540tggacacgta gtgcggcgcc attaaataac gtgtacttgt cctattcttg tcggtgtggt 600cttgggaaaa gaaagcttgc tggaggctgc tgttcagccc catacattac ttgttacgat 660tctgctgact ttcggcgggt gcaatatctc tacttctgct tgacgaggta ttgttgcctg 720tacttctttc ttcttcttct tgctgattgg ttctataaga aatctagtat tttctttgaa 780acagagtttt cccgtggttt tcgaacttgg agaaagattg ttaagcttct gtatattctg 840cccaaatttg tcgggcccat ggcgaaaaac gttgcgattt tcggcttatt gttttctctt 900cttgtgttgg ttccttctca gatcttcgct gatcgaatct gcactggaat aacatcttca 960aactcacctc atgtggtcaa aacagccact caaggggagg tcaatgtgac tggtgtgata 1020ccactaacaa caacaccaac aaaatcttat tttgcaaatc tcaaaggaac aaggaccaga 1080gggaaactat gcccagactg tctcaactgc acagatctgg atgtggcttt gggcagacca 1140atgtgtgtgg ggaccacacc ttcggcgaag gcttcaatac tccacgaagt caaacctgtt 1200acatccgggt gctttcctat aatgcacgac agaacaaaaa tcaggcaact acccaatctt 1260ctcagaggat atgaaaatat caggctatca acccaaaacg tcatcgatgc ggaaaaggca 1320ccaggaggac cctacagact tggaacctca ggatcttgcc ctaacgctac cagtaagagc 1380ggatttttcg caacaatggc ttgggctgtc ccaaaggaca acaacaaaaa tgcaacgaac 1440ccactaacag tagaagtacc atacatttgt acagaagggg aagaccaaat cactgtttgg 1500gggttccatt cagataacaa aacccaaatg aagaacctct atggagactc aaatcctcaa 1560aagttcacct catctgctaa tggagtaacc acacactatg tttctcagat tggcagcttc 1620ccagatcaaa cagaagacgg aggactacca caaagcggca ggattgttgt tgattacatg 1680atgcaaaaac ctgggaaaac aggaacaatt gtctaccaaa gaggtgtttt gttgcctcaa 1740aaggtgtggt gcgcgagtgg caggagcaaa gtaataaaag ggtccttgcc tttaattggt 1800gaagcagatt gccttcatga aaaatacggt ggattaaaca aaagcaagcc ttactacaca 1860ggagaacatg caaaagccat aggaaattgc ccaatatggg tgaaaacacc tttgaagctc 1920gccaatggaa ccaaatatag acctcctgca aaactattaa aggaaagggg tttcttcgga

1980gctattgctg gtttcctaga aggaggatgg gaaggaatga ttgcaggctg gcacggatac 2040acatctcacg gagcacatgg agtggcagtg gcggcggacc ttaagagtac gcaagaagct 2100ataaacaaga taacaaaaaa tctcaattct ttgagtgagc tagaagtaaa gaatcttcaa 2160agactaagtg gtgccatgga tgaactccac aacgaaatac tcgagctgga tgagaaagtg 2220gatgatctca gagctgacac tataagctcg caaatagaac ttgcagtctt gctttccaac 2280gaaggaataa taaacagtga agatgagcat ctattggcac ttgagagaaa actaaagaaa 2340atgctgggtc cctctgctgt agagatagga aatggatgct tcgaaaccaa acacaagtgc 2400aaccagacct gcttagacag gatagctgct ggcaccttta atgcaggaga attttctctc 2460cccacttttg attcactgaa cattactgct gcatctttaa atgatgatgg attggataac 2520catactatac tgctctatta ctcaactgct gcttctagtt tggctgtaac attgatgcta 2580gctattttta ttgtttatat ggtctccaga gacaacgttt catgctccat ctgtctataa 2640aggcctattt tctttagttt gaatttactg ttattcggtg tgcatttcta tgtttggtga 2700gcggttttct gtgctcagag tgtgtttatt ttatgtaatt taatttcttt gtgagctcct 2760gtttagcagg tcgtcccttc agcaaggaca caaaaagatt ttaattttat taaaaaaaaa 2820aaaaaaaaag accgggaatt cgatatcaag cttatcgacc tgcagatcgt tcaaacattt 2880ggcaataaag tttcttaaga ttgaatcctg ttgccggtct tgcgatgatt atcatataat 2940ttctgttgaa ttacgttaag catgtaataa ttaacatgta atgcatgacg ttatttatga 3000gatgggtttt tatgattaga gtcccgcaat tatacattta atacgcgata gaaaacaaaa 3060tatagcgcgc aaactaggat aaattatcgc gcgcggtgtc atctatgtta ctagattcta 3120gagtctcaag cttcggcgcg cc 31421141272DNAMedicago sativa 114atgtttgggc gcggaccaac aaggaagagt gataacacca aatattacga tattcttggt 60gtttcaaaaa gtgctagtga agatgaaatc aagaaagcct atagaaaggc agcgatgaag 120aaccatccag ataagggtgg ggatcctgag aagttcaagg agttgggcca agcatatgaa 180gtgttgagcg atcctgaaaa gaaagaactg tatgatcaat atggtgaaga tgcccttaaa 240gaaggaatgg ggggaggcgc aggaagctca tttcataatc cgtttgatat tttcgaatca 300ttttttggtg caggctttgg tggtggtggt ccttcacgcg caagaagaca gaagcaagga 360gaagatgtgg tgcattctat aaaggtttcc ttggaggatg tgtataacgg cactacaaag 420aagctatcac tttctaggaa tgcactgtgc tcaaaatgta aagggaaagg ttcaaaaagt 480ggaactgctg gaaggtgttt tggatgccag ggcacaggta tgaagattac cagaaggcaa 540attggactgg gcatgattca acaaatgcaa cacgtctgtc ctgactgcaa aggaacaggc 600gaggtcatta gtgagagaga tagatgccct caatgcaagg gaaacaagat tactcaagaa 660aagaaggtgc tggaggtgca tgtggaaaag gggatgcagc agggtcacaa gattgtattc 720gaaggacaag ctgatgaagc tcctgataca atcacaggag acatagtttt tgtcttgcaa 780gtaaagggac atccgaagtt tcggagggag cgtgatgacc tccacattga acacaatttg 840agcttaactg aggctctctg tggcttccag tttaatgtca cacatcttga tggaaggcaa 900ctattggtca aatcgaaccc cggcgaagtc atcaagccag gtcaacataa agctataaat 960gatgagggaa tgccacaaca tggtaggccg ttcatgaagg gacgcctata catcaagttt 1020agtgttgatt tcccggattc gggttttctt tccccaagcc aaagcctgga attagaaaag 1080atattacctc aaaagacaag caagaacttg tcccaaaagg aggtagatga ttgtgaggag 1140accaccctgc atgatgtcaa tattgcagag gagatgagtc gaaagaagca acaataccgt 1200gaggcatatg atgacgatga tgatgaagat gatgagcact cgcagcctcg ggtgcaatgc 1260gctcaacagt ag 127211520DNAArtificial sequenceHsp-40Luz.1c 115atgtttgggc gcggaccaac 2011631DNAArtificial sequenceHsp40Luz-SacI.1272r 116agctgagctc ctactgttga gcgcattgca c 3111736DNAArtificial sequenceHsp40Luz-Plasto.r 117gttggtccgc gcccaaacat tttctctcaa gatgat 3611821DNAArtificial sequenceHsp70Ara.1c 118atgtcgggta aaggagaagg a 2111933DNAArtificial sequenceHsp70Ara-SacI.1956r 119agctgagctc ttagtcgacc tcctcgatct tag 3312037DNAArtificial sequenceHsp70Ara-Plasto.r 120tccttctcct ttacccgaca ttttctctca agatgat 371214402DNAArtificial sequenceConstruct R850 from HindIII to EcoRI 121aagcttgcat gcctgcaggt cgactctaga ggatccccgg gctggtctgt acattcatct 60tgccgccttt gcattcactt ggccacaaag agtagagaga aggaagagaa gagcccagac 120ttcaagaagc gaccttgcaa gtgcactcga gggtcagaaa ctgtatatca tatctatgtg 180agagaaaggg gaacatttga gatggagtcc atttacttga ggtatactta ttattttgat 240caataaattt gtatacttct tatttagatc aataaatttg tcattaagct ataatccaaa 300ataaattacg atcaaatatg caaatgttag ccagtacttg tgttaaactt gatggcatct 360cttggtttct ttggcaatca catgcctaag aaataaatag tatcatatga ttgtgtttgg 420tcagacttca gagtcagatg actctgtttg gataaacagc ttaattaagc gcttatagaa 480tatcatatga ttgtgtttgg tcagacttca gagcatctct tggtttctct ggcaatcata 540tgcctaagaa ataaatagta tcatatgatt gtgtttggtc agacttcaga gtcagatgac 600cctgtttggg taaacagctt aattaagtgc ttatagaata agcgcttatc atataagtgc 660ttttgtacag ttatttctat gaaagtagaa gaaatagtca tattgtttta atataagcta 720tcctggagag cttgtggaaa taaccagaaa agaacttatg gacacgtcat gagctgttta 780cataagatct ccctaacagt ctcaaaagtg tttatgccag tagataaatt caaataagtc 840aatctaaaca gaccctaaat ccattatggt acctatcatt ttagcttatt ccatctttat 900taagaatgtc atgagataac ataatgataa cacattattt tgacacaaat gggcagatct 960agcaatttaa ctctggagtc cttcaagact gctgttctta cgaagttcac gtccctgaat 1020catgttcctg tatggaagcc tgaaagacct caaattctaa aaggtggcga taaattgaag 1080gtttacaaaa tataccctgc gggcttgaca cagaggcaag ctctttatac cttccagttc 1140aacggggatg ttgatttcag aagtcacttg gagagcaatc cttgtgccaa gtttgaagta 1200atttttgtgt agcatatgtt gagctaccta caatttacat gatcacctag cattagctct 1260ttcacttaac tgagagaatg aagttttagg aatgagtatg accatggagt cggcatggct 1320ttgtaatgcc taccctactt tggccaactc atcggggatt tacattcaga aaatatacat 1380gacttcaacc atacttaaac ccctttttgt aagataactg aatgttcata tttaatgttg 1440ggttgtagtg tttttacttg attatatcca gacagttaca agttggacaa caagattgtg 1500ggtctgtact gttatttatt tatttttttt ttagcagaaa caccttatct tttgtttcgt 1560ttgaatgtag aatgaaaata aaagaaagaa aatataacat catcggccgc gcttgtctaa 1620tttcgggcag ttaggatcct ctccggtcac cggaaagttt cagtagaaga aacaaaacac 1680cgtgactaaa atgatactat tattttattt attgtgtttt tcttttttct accggaactt 1740tttagaacgg atcccaactc gttccggggc cgctacaact gaaacaaaag aagatatttt 1800ctctctcttc agaaatgtaa gttttccttt acagataccc attcaccatt tgattcagat 1860gtggtgacta gagataaagc atactaattt gactcttgga aacccataaa gtttatgtta 1920tccgtgttct ggaccaatcc acttgggggc ataacctgtg tctatgtgtg gtttggtttc 1980cattctgatt tatgcggcga cttgtaattt aaaatctagg aggggcagac attgaacaat 2040cccaatattt taataactta tgcaagattt tttttattaa tgagatgatg tgtttgtgac 2100tgagattgag tcatacattt cactaagaaa tggttccaag taccaaacta tcatgaccca 2160gttgcaaaca tgacgttcgg gagtggtcac tttgatagtt caatttcatc ttggcttctt 2220attcctttta taattctaat tcttcttgtg taaactattt catgtattat ttttctttaa 2280aatttacatg tcatttattt tgcctcacta actcaatttt gcatataaca atgataagtg 2340atattttgac tcacaaaatt tacatcaaat ttcgacatcg tttattatgt tcattggatg 2400attaacaaat ataacaaact ttgcaactaa ttaaccacca actgaatata attaactata 2460actgtgaaag tagttaactc atttttatat ttcatagatc aaataagaga aataacggta 2520tattaatccc tccaaaaaaa aaaaacggta tatttactaa aaaatctaag ccacgtagga 2580ggataacagg atccccgtag gaggataaca tccaatccaa ccaatcacaa caatcctgat 2640gagataaccc actttaagcc cacgcatctg tggcacatct acattatcta aatcacacat 2700tcttccacac atctgagcca cacaaaaacc aatccacatc tttatcaccc attctataaa 2760aaatcacact ttgtgagtct acactttgat tcccttcaaa cacatacaaa gagaagagac 2820taattaatta attaatcatc ttgagagaaa atgtttgggc gcggaccaac aaggaagagt 2880gataacacca aatattacga tattcttggt gtttcaaaaa gtgctagtga agatgaaatc 2940aagaaagcct atagaaaggc agcgatgaag aaccatccag ataagggtgg ggatcctgag 3000aagttcaagg agttgggcca agcatatgaa gtgttgagcg atcctgaaaa gaaagaactg 3060tatgatcaat atggtgaaga tgcccttaaa gaaggaatgg ggggaggcgc aggaagctca 3120tttcataatc cgtttgatat tttcgaatca ttttttggtg caggctttgg tggtggtggt 3180ccttcacgcg caagaagaca gaagcaagga gaagatgtgg tgcattctat aaaggtttcc 3240ttggaggatg tgtataacgg cactacaaag aagctatcac tttctaggaa tgcactgtgc 3300tcaaaatgta aagggaaagg ttcaaaaagt ggaactgctg gaaggtgttt tggatgccag 3360ggcacaggta tgaagattac cagaaggcaa attggactgg gcatgattca acaaatgcaa 3420cacgtctgtc ctgactgcaa aggaacaggc gaggtcatta gtgagagaga tagatgccct 3480caatgcaagg gaaacaagat tactcaagaa aagaaggtgc tggaggtgca tgtggaaaag 3540gggatgcagc agggtcacaa gattgtattc gaaggacaag ctgatgaagc tcctgataca 3600atcacaggag acatagtttt tgtcttgcaa gtaaagggac atccgaagtt tcggagggag 3660cgtgatgacc tccacattga acacaatttg agcttaactg aggctctctg tggcttccag 3720tttaatgtca cacatcttga tggaaggcaa ctattggtca aatcgaaccc cggcgaagtc 3780atcaagccag gtcaacataa agctataaat gatgagggaa tgccacaaca tggtaggccg 3840ttcatgaagg gacgcctata catcaagttt agtgttgatt tcccggattc gggttttctt 3900tccccaagcc aaagcctgga attagaaaag atattacctc aaaagacaag caagaacttg 3960tcccaaaagg aggtagatga ttgtgaggag accaccctgc atgatgtcaa tattgcagag 4020gagatgagtc gaaagaagca acaataccgt gaggcatatg atgacgatga tgatgaagat 4080gatgagcact cgcagcctcg ggtgcaatgc gctcaacagt aggagctcag ctcgaatttc 4140cccgatcgtt caaacatttg gcaataaagt ttcttaagat tgaatcctgt tgccggtctt 4200gcgatgatta tcatataatt tctgttgaat tacgttaagc atgtaataat taacatgtaa 4260tgcatgacgt tatttatgag atgggttttt atgattagag tcccgcaatt atacatttaa 4320tacgcgatag aaaacaaaat atagcgcgca aactaggata aattatcgcg cgcggtgtca 4380tctatgttac tagatcgaat tc 44021225086DNAArtificial sequenceConstruct R860 from Hind III to EcoRI 122aagcttgcat gcctgcaggt cgactctaga ggatccccgg gctggtctgt acattcatct 60tgccgccttt gcattcactt ggccacaaag agtagagaga aggaagagaa gagcccagac 120ttcaagaagc gaccttgcaa gtgcactcga gggtcagaaa ctgtatatca tatctatgtg 180agagaaaggg gaacatttga gatggagtcc atttacttga ggtatactta ttattttgat 240caataaattt gtatacttct tatttagatc aataaatttg tcattaagct ataatccaaa 300ataaattacg atcaaatatg caaatgttag ccagtacttg tgttaaactt gatggcatct 360cttggtttct ttggcaatca catgcctaag aaataaatag tatcatatga ttgtgtttgg 420tcagacttca gagtcagatg actctgtttg gataaacagc ttaattaagc gcttatagaa 480tatcatatga ttgtgtttgg tcagacttca gagcatctct tggtttctct ggcaatcata 540tgcctaagaa ataaatagta tcatatgatt gtgtttggtc agacttcaga gtcagatgac 600cctgtttggg taaacagctt aattaagtgc ttatagaata agcgcttatc atataagtgc 660ttttgtacag ttatttctat gaaagtagaa gaaatagtca tattgtttta atataagcta 720tcctggagag cttgtggaaa taaccagaaa agaacttatg gacacgtcat gagctgttta 780cataagatct ccctaacagt ctcaaaagtg tttatgccag tagataaatt caaataagtc 840aatctaaaca gaccctaaat ccattatggt acctatcatt ttagcttatt ccatctttat 900taagaatgtc atgagataac ataatgataa cacattattt tgacacaaat gggcagatct 960agcaatttaa ctctggagtc cttcaagact gctgttctta cgaagttcac gtccctgaat 1020catgttcctg tatggaagcc tgaaagacct caaattctaa aaggtggcga taaattgaag 1080gtttacaaaa tataccctgc gggcttgaca cagaggcaag ctctttatac cttccagttc 1140aacggggatg ttgatttcag aagtcacttg gagagcaatc cttgtgccaa gtttgaagta 1200atttttgtgt agcatatgtt gagctaccta caatttacat gatcacctag cattagctct 1260ttcacttaac tgagagaatg aagttttagg aatgagtatg accatggagt cggcatggct 1320ttgtaatgcc taccctactt tggccaactc atcggggatt tacattcaga aaatatacat 1380gacttcaacc atacttaaac ccctttttgt aagataactg aatgttcata tttaatgttg 1440ggttgtagtg tttttacttg attatatcca gacagttaca agttggacaa caagattgtg 1500ggtctgtact gttatttatt tatttttttt ttagcagaaa caccttatct tttgtttcgt 1560ttgaatgtag aatgaaaata aaagaaagaa aatataacat catcggccgc gcttgtctaa 1620tttcgggcag ttaggatcct ctccggtcac cggaaagttt cagtagaaga aacaaaacac 1680cgtgactaaa atgatactat tattttattt attgtgtttt tcttttttct accggaactt 1740tttagaacgg atcccaactc gttccggggc cgctacaact gaaacaaaag aagatatttt 1800ctctctcttc agaaatgtaa gttttccttt acagataccc attcaccatt tgattcagat 1860gtggtgacta gagataaagc atactaattt gactcttgga aacccataaa gtttatgtta 1920tccgtgttct ggaccaatcc acttgggggc ataacctgtg tctatgtgtg gtttggtttc 1980cattctgatt tatgcggcga cttgtaattt aaaatctagg aggggcagac attgaacaat 2040cccaatattt taataactta tgcaagattt tttttattaa tgagatgatg tgtttgtgac 2100tgagattgag tcatacattt cactaagaaa tggttccaag taccaaacta tcatgaccca 2160gttgcaaaca tgacgttcgg gagtggtcac tttgatagtt caatttcatc ttggcttctt 2220attcctttta taattctaat tcttcttgtg taaactattt catgtattat ttttctttaa 2280aatttacatg tcatttattt tgcctcacta actcaatttt gcatataaca atgataagtg 2340atattttgac tcacaaaatt tacatcaaat ttcgacatcg tttattatgt tcattggatg 2400attaacaaat ataacaaact ttgcaactaa ttaaccacca actgaatata attaactata 2460actgtgaaag tagttaactc atttttatat ttcatagatc aaataagaga aataacggta 2520tattaatccc tccaaaaaaa aaaaacggta tatttactaa aaaatctaag ccacgtagga 2580ggataacagg atccccgtag gaggataaca tccaatccaa ccaatcacaa caatcctgat 2640gagataaccc actttaagcc cacgcatctg tggcacatct acattatcta aatcacacat 2700tcttccacac atctgagcca cacaaaaacc aatccacatc tttatcaccc attctataaa 2760aaatcacact ttgtgagtct acactttgat tcccttcaaa cacatacaaa gagaagagac 2820taattaatta attaatcatc ttgagagaaa atgtcgggta aaggagaagg accagctatc 2880ggtatcgatc ttggtaccac ttactcttgc gtcggagtat ggcaacacga ccgtgttgag 2940atcattgcta atgatcaagg aaacagaacc acgccatctt acgttgcttt caccgactcc 3000gagaggttga tcggtgacgc agctaagaat caggtcgcca tgaaccccgt taacaccgtt 3060ttcgacgcta agaggttgat cggtcgtcgt ttctctgaca gctctgttca gagtgacatg 3120aaattgtggc cattcaagat tcaagccgga cctgccgata agccaatgat ctacgtcgaa 3180tacaagggtg aagagaaaga gttcgcagct gaggagattt cttccatggt tcttattaag 3240atgcgtgaga ttgctgaggc ttaccttggt gtcacaatca agaacgccgt tgttaccgtt 3300ccagcttact tcaacgactc tcagcgtcag gctacaaagg atgctggtgt catcgctggt 3360ttgaacgtta tgcgaatcat caacgagcct acagccgccg ctattgccta cggtcttgac 3420aaaaaggcta ccagcgttgg agagaagaat gttcttatct tcgatcttgg tggtggcact 3480tttgatgtct ctcttcttac cattgaagag ggtatctttg aggtgaaggc aactgctggt 3540gacacccatc ttggtgggga agattttgac aacagaatgg ttaaccactt tgtccaagag 3600ttcaagagga agagtaagaa ggatatcacc ggtaacccaa gagctcttag gaggttgaga 3660acttcctgtg agagagcgaa gaggactctt tcttccactg ctcagaccac catcgagatt 3720gactctctat acgagggtat cgacttctac tccaccatca cccgtgctag atttgaggag 3780ctcaacatgg atctcttcag gaagtgtatg gagccagttg agaagtgtct tcgtgatgct 3840aagatggaca agagcactgt tcatgatgtt gtccttgttg gtggttctac ccgtatccct 3900aaggttcagc aattgctcca ggacttcttc aacggcaaag agctttgcaa gtctattaac 3960cctgatgagg ctgttgccta cggtgctgct gtccagggag ctattctcag cggtgaagga 4020aacgagaagg ttcaagatct tctattgctc gatgtcactc ctctctccct tggtttggaa 4080actgccggtg gtgtcatgac cactttgatc ccaaggaaca caaccatccc aaccaagaag 4140gaacaagtct tctccaccta ctcagacaac caacccggtg tgttgatcca ggtgtacgaa 4200ggagagagag ccagaaccaa ggacaacaac cttcttggta aatttgagct ctccggaatt 4260cctccagctc ctcgtggtgt cccccagatc acagtctgct ttgacattga tgccaatggt 4320atcctcaatg tctctgctga ggacaagacc accggacaga agaacaagat caccatcacc 4380aatgacaagg gtcgtctctc caaggatgag attgagaaga tggttcaaga ggctgagaag 4440tacaagtccg aagacgagga gcacaagaag aaggttgaag ccaagaacgc tctcgagaac 4500tacgcttaca acatgaggaa caccatccaa gacgagaaga ttggtgagaa gctcccggct 4560gcagacaaga agaagatcga ggattctatt gagcaggcga ttcaatggct cgagggtaac 4620cagttggctg aggctgatga gttcgaagac aagatgaagg aattggagag catctgcaac 4680ccaatcattg ccaagatgta ccaaggagct ggtggtgaag ccggtggtcc aggtgcctct 4740ggtatggacg atgatgctcc ccctgcttca ggcggtgctg gacctaagat cgaggaggtc 4800gactaagagc tcagctcgaa tttccccgat cgttcaaaca tttggcaata aagtttctta 4860agattgaatc ctgttgccgg tcttgcgatg attatcatat aatttctgtt gaattacgtt 4920aagcatgtaa taattaacat gtaatgcatg acgttattta tgagatgggt ttttatgatt 4980agagtcccgc aattatacat ttaatacgcg atagaaaaca aaatatagcg cgcaaactag 5040gataaattat cgcgcgcggt gtcatctatg ttactagatc gaattc 50861239493DNAArtificial sequenceConstruct R870 from Hind III to Eco RI 123aagcttgcat gcctgcaggt cgactctaga ggatccccgg gctggtctgt acattcatct 60tgccgccttt gcattcactt ggccacaaag agtagagaga aggaagagaa gagcccagac 120ttcaagaagc gaccttgcaa gtgcactcga gggtcagaaa ctgtatatca tatctatgtg 180agagaaaggg gaacatttga gatggagtcc atttacttga ggtatactta ttattttgat 240caataaattt gtatacttct tatttagatc aataaatttg tcattaagct ataatccaaa 300ataaattacg atcaaatatg caaatgttag ccagtacttg tgttaaactt gatggcatct 360cttggtttct ttggcaatca catgcctaag aaataaatag tatcatatga ttgtgtttgg 420tcagacttca gagtcagatg actctgtttg gataaacagc ttaattaagc gcttatagaa 480tatcatatga ttgtgtttgg tcagacttca gagcatctct tggtttctct ggcaatcata 540tgcctaagaa ataaatagta tcatatgatt gtgtttggtc agacttcaga gtcagatgac 600cctgtttggg taaacagctt aattaagtgc ttatagaata agcgcttatc atataagtgc 660ttttgtacag ttatttctat gaaagtagaa gaaatagtca tattgtttta atataagcta 720tcctggagag cttgtggaaa taaccagaaa agaacttatg gacacgtcat gagctgttta 780cataagatct ccctaacagt ctcaaaagtg tttatgccag tagataaatt caaataagtc 840aatctaaaca gaccctaaat ccattatggt acctatcatt ttagcttatt ccatctttat 900taagaatgtc atgagataac ataatgataa cacattattt tgacacaaat gggcagatct 960agcaatttaa ctctggagtc cttcaagact gctgttctta cgaagttcac gtccctgaat 1020catgttcctg tatggaagcc tgaaagacct caaattctaa aaggtggcga taaattgaag 1080gtttacaaaa tataccctgc gggcttgaca cagaggcaag ctctttatac cttccagttc 1140aacggggatg ttgatttcag aagtcacttg gagagcaatc cttgtgccaa gtttgaagta 1200atttttgtgt agcatatgtt gagctaccta caatttacat gatcacctag cattagctct 1260ttcacttaac tgagagaatg aagttttagg aatgagtatg accatggagt cggcatggct 1320ttgtaatgcc taccctactt tggccaactc atcggggatt tacattcaga aaatatacat 1380gacttcaacc atacttaaac ccctttttgt aagataactg aatgttcata tttaatgttg 1440ggttgtagtg tttttacttg attatatcca gacagttaca agttggacaa caagattgtg 1500ggtctgtact gttatttatt tatttttttt ttagcagaaa caccttatct tttgtttcgt 1560ttgaatgtag aatgaaaata aaagaaagaa aatataacat catcggccgc gcttgtctaa 1620tttcgggcag ttaggatcct ctccggtcac cggaaagttt cagtagaaga aacaaaacac 1680cgtgactaaa atgatactat tattttattt attgtgtttt tcttttttct accggaactt 1740tttagaacgg atcccaactc gttccggggc cgctacaact gaaacaaaag aagatatttt 1800ctctctcttc agaaatgtaa gttttccttt acagataccc attcaccatt tgattcagat 1860gtggtgacta gagataaagc atactaattt gactcttgga aacccataaa gtttatgtta 1920tccgtgttct ggaccaatcc acttgggggc ataacctgtg tctatgtgtg gtttggtttc 1980cattctgatt tatgcggcga cttgtaattt aaaatctagg aggggcagac attgaacaat 2040cccaatattt taataactta tgcaagattt tttttattaa tgagatgatg tgtttgtgac 2100tgagattgag tcatacattt cactaagaaa tggttccaag taccaaacta tcatgaccca 2160gttgcaaaca tgacgttcgg

gagtggtcac tttgatagtt caatttcatc ttggcttctt 2220attcctttta taattctaat tcttcttgtg taaactattt catgtattat ttttctttaa 2280aatttacatg tcatttattt tgcctcacta actcaatttt gcatataaca atgataagtg 2340atattttgac tcacaaaatt tacatcaaat ttcgacatcg tttattatgt tcattggatg 2400attaacaaat ataacaaact ttgcaactaa ttaaccacca actgaatata attaactata 2460actgtgaaag tagttaactc atttttatat ttcatagatc aaataagaga aataacggta 2520tattaatccc tccaaaaaaa aaaaacggta tatttactaa aaaatctaag ccacgtagga 2580ggataacagg atccccgtag gaggataaca tccaatccaa ccaatcacaa caatcctgat 2640gagataaccc actttaagcc cacgcatctg tggcacatct acattatcta aatcacacat 2700tcttccacac atctgagcca cacaaaaacc aatccacatc tttatcaccc attctataaa 2760aaatcacact ttgtgagtct acactttgat tcccttcaaa cacatacaaa gagaagagac 2820taattaatta attaatcatc ttgagagaaa atgtcgggta aaggagaagg accagctatc 2880ggtatcgatc ttggtaccac ttactcttgc gtcggagtat ggcaacacga ccgtgttgag 2940atcattgcta atgatcaagg aaacagaacc acgccatctt acgttgcttt caccgactcc 3000gagaggttga tcggtgacgc agctaagaat caggtcgcca tgaaccccgt taacaccgtt 3060ttcgacgcta agaggttgat cggtcgtcgt ttctctgaca gctctgttca gagtgacatg 3120aaattgtggc cattcaagat tcaagccgga cctgccgata agccaatgat ctacgtcgaa 3180tacaagggtg aagagaaaga gttcgcagct gaggagattt cttccatggt tcttattaag 3240atgcgtgaga ttgctgaggc ttaccttggt gtcacaatca agaacgccgt tgttaccgtt 3300ccagcttact tcaacgactc tcagcgtcag gctacaaagg atgctggtgt catcgctggt 3360ttgaacgtta tgcgaatcat caacgagcct acagccgccg ctattgccta cggtcttgac 3420aaaaaggcta ccagcgttgg agagaagaat gttcttatct tcgatcttgg tggtggcact 3480tttgatgtct ctcttcttac cattgaagag ggtatctttg aggtgaaggc aactgctggt 3540gacacccatc ttggtgggga agattttgac aacagaatgg ttaaccactt tgtccaagag 3600ttcaagagga agagtaagaa ggatatcacc ggtaacccaa gagctcttag gaggttgaga 3660acttcctgtg agagagcgaa gaggactctt tcttccactg ctcagaccac catcgagatt 3720gactctctat acgagggtat cgacttctac tccaccatca cccgtgctag atttgaggag 3780ctcaacatgg atctcttcag gaagtgtatg gagccagttg agaagtgtct tcgtgatgct 3840aagatggaca agagcactgt tcatgatgtt gtccttgttg gtggttctac ccgtatccct 3900aaggttcagc aattgctcca ggacttcttc aacggcaaag agctttgcaa gtctattaac 3960cctgatgagg ctgttgccta cggtgctgct gtccagggag ctattctcag cggtgaagga 4020aacgagaagg ttcaagatct tctattgctc gatgtcactc ctctctccct tggtttggaa 4080actgccggtg gtgtcatgac cactttgatc ccaaggaaca caaccatccc aaccaagaag 4140gaacaagtct tctccaccta ctcagacaac caacccggtg tgttgatcca ggtgtacgaa 4200ggagagagag ccagaaccaa ggacaacaac cttcttggta aatttgagct ctccggaatt 4260cctccagctc ctcgtggtgt cccccagatc acagtctgct ttgacattga tgccaatggt 4320atcctcaatg tctctgctga ggacaagacc accggacaga agaacaagat caccatcacc 4380aatgacaagg gtcgtctctc caaggatgag attgagaaga tggttcaaga ggctgagaag 4440tacaagtccg aagacgagga gcacaagaag aaggttgaag ccaagaacgc tctcgagaac 4500tacgcttaca acatgaggaa caccatccaa gacgagaaga ttggtgagaa gctcccggct 4560gcagacaaga agaagatcga ggattctatt gagcaggcga ttcaatggct cgagggtaac 4620cagttggctg aggctgatga gttcgaagac aagatgaagg aattggagag catctgcaac 4680ccaatcattg ccaagatgta ccaaggagct ggtggtgaag ccggtggtcc aggtgcctct 4740ggtatggacg atgatgctcc ccctgcttca ggcggtgctg gacctaagat cgaggaggtc 4800gactaagagc tcagctcgaa tttccccgat cgttcaaaca tttggcaata aagtttctta 4860agattgaatc ctgttgccgg tcttgcgatg attatcatat aatttctgtt gaattacgtt 4920aagcatgtaa taattaacat gtaatgcatg acgttattta tgagatgggt ttttatgatt 4980agagtcccgc aattatacat ttaatacgcg atagaaaaca aaatatagcg cgcaaactag 5040gataaattat cgcgcgcggt gtcatctatg ttactagatc gaattcgtaa tcatggtcat 5100agctgtttcc tgtgtgaaat tgttatccgg ggctggtctg tacattcatc ttgccgcctt 5160tgcattcact tggccacaaa gagtagagag aaggaagaga agagcccaga cttcaagaag 5220cgaccttgca agtgcactcg agggtcagaa actgtatatc atatctatgt gagagaaagg 5280ggaacatttg agatggagtc catttacttg aggtatactt attattttga tcaataaatt 5340tgtatacttc ttatttagat caataaattt gtcattaagc tataatccaa aataaattac 5400gatcaaatat gcaaatgtta gccagtactt gtgttaaact tgatggcatc tcttggtttc 5460tttggcaatc acatgcctaa gaaataaata gtatcatatg attgtgtttg gtcagacttc 5520agagtcagat gactctgttt ggataaacag cttaattaag cgcttataga atatcatatg 5580attgtgtttg gtcagacttc agagcatctc ttggtttctc tggcaatcat atgcctaaga 5640aataaatagt atcatatgat tgtgtttggt cagacttcag agtcagatga ccctgtttgg 5700gtaaacagct taattaagtg cttatagaat aagcgcttat catataagtg cttttgtaca 5760gttatttcta tgaaagtaga agaaatagtc atattgtttt aatataagct atcctggaga 5820gcttgtggaa ataaccagaa aagaacttat ggacacgtca tgagctgttt acataagatc 5880tccctaacag tctcaaaagt gtttatgcca gtagataaat tcaaataagt caatctaaac 5940agaccctaaa tccattatgg tacctatcat tttagcttat tccatcttta ttaagaatgt 6000catgagataa cataatgata acacattatt ttgacacaaa tgggcagatc tagcaattta 6060actctggagt ccttcaagac tgctgttctt acgaagttca cgtccctgaa tcatgttcct 6120gtatggaagc ctgaaagacc tcaaattcta aaaggtggcg ataaattgaa ggtttacaaa 6180atataccctg cgggcttgac acagaggcaa gctctttata ccttccagtt caacggggat 6240gttgatttca gaagtcactt ggagagcaat ccttgtgcca agtttgaagt aatttttgtg 6300tagcatatgt tgagctacct acaatttaca tgatcaccta gcattagctc tttcacttaa 6360ctgagagaat gaagttttag gaatgagtat gaccatggag tcggcatggc tttgtaatgc 6420ctaccctact ttggccaact catcggggat ttacattcag aaaatataca tgacttcaac 6480catacttaaa cccctttttg taagataact gaatgttcat atttaatgtt gggttgtagt 6540gtttttactt gattatatcc agacagttac aagttggaca acaagattgt gggtctgtac 6600tgttatttat ttattttttt tttagcagaa acaccttatc ttttgtttcg tttgaatgta 6660gaatgaaaat aaaagaaaga aaatataaca tcatcggccg cgcttgtcta atttcgggca 6720gttaggatcc tctccggtca ccggaaagtt tcagtagaag aaacaaaaca ccgtgactaa 6780aatgatacta ttattttatt tattgtgttt ttcttttttc taccggaact ttttagaacg 6840gatcccaact cgttccgggg ccgctacaac tgaaacaaaa gaagatattt tctctctctt 6900cagaaatgta agttttcctt tacagatacc cattcaccat ttgattcaga tgtggtgact 6960agagataaag catactaatt tgactcttgg aaacccataa agtttatgtt atccgtgttc 7020tggaccaatc cacttggggg cataacctgt gtctatgtgt ggtttggttt ccattctgat 7080ttatgcggcg acttgtaatt taaaatctag gaggggcaga cattgaacaa tcccaatatt 7140ttaataactt atgcaagatt ttttttatta atgagatgat gtgtttgtga ctgagattga 7200gtcatacatt tcactaagaa atggttccaa gtaccaaact atcatgaccc agttgcaaac 7260atgacgttcg ggagtggtca ctttgatagt tcaatttcat cttggcttct tattcctttt 7320ataattctaa ttcttcttgt gtaaactatt tcatgtatta tttttcttta aaatttacat 7380gtcatttatt ttgcctcact aactcaattt tgcatataac aatgataagt gatattttga 7440ctcacaaaat ttacatcaaa tttcgacatc gtttattatg ttcattggat gattaacaaa 7500tataacaaac tttgcaacta attaaccacc aactgaatat aattaactat aactgtgaaa 7560gtagttaact catttttata tttcatagat caaataagag aaataacggt atattaatcc 7620ctccaaaaaa aaaaaacggt atatttacta aaaaatctaa gccacgtagg aggataacag 7680gatccccgta ggaggataac atccaatcca accaatcaca acaatcctga tgagataacc 7740cactttaagc ccacgcatct gtggcacatc tacattatct aaatcacaca ttcttccaca 7800catctgagcc acacaaaaac caatccacat ctttatcacc cattctataa aaaatcacac 7860tttgtgagtc tacactttga ttcccttcaa acacatacaa agagaagaga ctaattaatt 7920aattaatcat cttgagagaa aatgtttggg cgcggaccaa caaggaagag tgataacacc 7980aaatattacg atattcttgg tgtttcaaaa agtgctagtg aagatgaaat caagaaagcc 8040tatagaaagg cagcgatgaa gaaccatcca gataagggtg gggatcctga gaagttcaag 8100gagttgggcc aagcatatga agtgttgagc gatcctgaaa agaaagaact gtatgatcaa 8160tatggtgaag atgcccttaa agaaggaatg gggggaggcg caggaagctc atttcataat 8220ccgtttgata ttttcgaatc attttttggt gcaggctttg gtggtggtgg tccttcacgc 8280gcaagaagac agaagcaagg agaagatgtg gtgcattcta taaaggtttc cttggaggat 8340gtgtataacg gcactacaaa gaagctatca ctttctagga atgcactgtg ctcaaaatgt 8400aaagggaaag gttcaaaaag tggaactgct ggaaggtgtt ttggatgcca gggcacaggt 8460atgaagatta ccagaaggca aattggactg ggcatgattc aacaaatgca acacgtctgt 8520cctgactgca aaggaacagg cgaggtcatt agtgagagag atagatgccc tcaatgcaag 8580ggaaacaaga ttactcaaga aaagaaggtg ctggaggtgc atgtggaaaa ggggatgcag 8640cagggtcaca agattgtatt cgaaggacaa gctgatgaag ctcctgatac aatcacagga 8700gacatagttt ttgtcttgca agtaaaggga catccgaagt ttcggaggga gcgtgatgac 8760ctccacattg aacacaattt gagcttaact gaggctctct gtggcttcca gtttaatgtc 8820acacatcttg atggaaggca actattggtc aaatcgaacc ccggcgaagt catcaagcca 8880ggtcaacata aagctataaa tgatgaggga atgccacaac atggtaggcc gttcatgaag 8940ggacgcctat acatcaagtt tagtgttgat ttcccggatt cgggttttct ttccccaagc 9000caaagcctgg aattagaaaa gatattacct caaaagacaa gcaagaactt gtcccaaaag 9060gaggtagatg attgtgagga gaccaccctg catgatgtca atattgcaga ggagatgagt 9120cgaaagaagc aacaataccg tgaggcatat gatgacgatg atgatgaaga tgatgagcac 9180tcgcagcctc gggtgcaatg cgctcaacag taggagctca gctcgaattt ccccgatcgt 9240tcaaacattt ggcaataaag tttcttaaga ttgaatcctg ttgccggtct tgcgatgatt 9300atcatataat ttctgttgaa ttacgttaag catgtaataa ttaacatgta atgcatgacg 9360ttatttatga gatgggtttt tatgattaga gtcccgcaat tatacattta atacgcgata 9420gaaaacaaaa tatagcgcgc aaactaggat aaattatcgc gcgcggtgtc atctatgtta 9480ctagatcgaa ttc 949312434DNAArtificial sequencesupP19-plasto.r 124ccttgtatag ctcgttccat tttctctcaa gatg 3412520DNAArtificial sequencesupP19-1c 125atggaacgag ctatacaagg 2012632DNAArtificial sequenceSupP19-SacI.r 126agtcgagctc ttactcgctt tctttttcga ag 32

Claims

1. A nucleic acid comprising a nucleotide sequence encoding a type A influenza hemagglutinin (HA) and a protein disulfide isomerase signal peptide, operatively linked to a regulatory region active in a plant.

2-3. (canceled)

4. The nucleic acid of claim 1, wherein the type A influenza is a subtype selected from the group consisting of H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, and H16.

5. The nucleic acid of claim 1, wherein the HA is from a type A influenza, selected from the group consisting of H1, H2, H3, H5, H6, H7 and H9.

6. A method of producing influenza virus like particles (VLPs) in a plant comprising:a) introducing the nucleic acid of claim 1 into the plant, or portion of the plant, andb) incubating the plant or portion of the plant under conditions that permit the expression of the nucleic acid, thereby producing the VLPs.

7. The method of claim 6, wherein in the step of introducing (step a), the nucleic acid is transiently expressed in the plant.

8. The method of claim 6, wherein, in the step of introducing (step a), the nucleic acid is stably expressed in the plant.

9. The method of claim 6 further comprising a step ofc) harvesting the host and purifying the VLPs.

10. The method of claim 6, wherein, in the step of introducing (step a), a second nucleic acid comprising a nucleotide sequence encoding one or more than one chaperone proteins is introduced to the plant.

11. The method of claim 10, wherein the one or more than one chaperon proteins is selected from the group consisting of Hsp40 and Hsp70.

12. A method of producing influenza virus like particles (VLPs) in a plant comprising:a) providing a plant, or a portion of a plant, comprising the nucleic acid of claim 1, andb) incubating the plant or portion of the plant under conditions that permit the expression of the nucleic acid, thereby producing the VLPs

13. A plant comprising the nucleic acid of claim 1.

14. The plant of claim 13, further comprising a nucleic acid comprising a nucleotide sequence encoding one or more than one chaperone proteins operatively linked to a regulatory region active in a plant.

15. The plant of claim 14, wherein the one or more than one chaperone proteins is selected from the group consisting of Hsp40 and Hsp70.

16. A virus like particle (VLP) produced by the method of claim 6, comprising an influenza virus hemagglutinin (HA) protein and one or more than one lipid derived from a plant.

17. The virus like particle (VLP) of claim 16, wherein the type A influenza is a subtype selected from the group consisting of H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, and H16.

18. The VLP of claim 17, wherein the HA is from a type A influenza, selected from the group consisting of H1, H2, H3, H5, H6, H7 and H9.

19. A composition comprising an effective dose of the VLP of claim 16 for inducing immunity to an influenza virus in a subject and a pharmaceutically acceptable carrier.

20. A method of inducing immunity to an influenza virus infection in a subject, comprising administering the virus like particle of claim 16.

21. The method of claim 20, wherein the virus like particle is administered to a subject orally, intradermally, intranasally, intramusclarly, intraperitoneally, intravenously, or Subcutaneously.

22. A virus like particle (VLP) produced by the method of claim 6, comprising an influenza virus HA bearing plant-specific N-glycans, or modified N-glycans.

23. The virus like particle (VLP) of claim 22, wherein the type A influenza is a subtype selected from the group consisting of H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14, H15, and H16.

24. The VLP of claim 23, wherein the HA is from a type A influenza, selected from the group consisting of H1, H2, H3, H5, H6, H7 and H9.

25. A composition comprising an effective dose of the VLP of claim 22 for inducing immunity to an influenza virus in a subject and a pharmaceutically acceptable carrier.

26. A method of inducing immunity to an influenza virus infection in a subject, comprising administering the composition of claim 25.

27. The method of claim 26, wherein the composition is administered to a subject orally, intradermally, intranasally, intramusclarly, intraperitoneally, intravenously, or Subcutaneously.

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