STABILIZED HUMAN IMMUNODEFICIENCY VIRUS (HIV) ENVELOPE (ENV) TRIMER VACCINES AND METHODS OF USING SAME

Abstract

The invention features stabilized human immunodeficiency virus (HIV) envelope (Env) trimers. The invention also features vaccines, nucleic acids, and vectors to deliver and/or facilitate production of the stabilized HIV Env trimers. In addition, the invention features methods of making and using the stabilized HIV Env trimers of the invention.

Description

BACKGROUND OF THE INVENTION

[0002] Vaccines that elicit cellular immune responses against viruses seek to reflect global viral diversity in order to effectively treat or prevent viral infection. For HIV vaccines, the initiation of robust and diverse human immunodeficiency virus (HIV)-specific T cell responses is desirable for an effective HIV vaccine. The highly variable Envelope protein (Env) is the primary target for neutralizing antibodies against HIV, and vaccine antigens may be tailored accordingly to elicit these antibody responses. To this end, immunogens mimicking the trimeric structure of Env on the native HIV virion are actively being pursued as antibody-based HIV vaccines. However, it has proven difficult to produce biochemically stable trimeric Env immunogens that elicit diverse neutralizing antibody responses.

[0003] Thus, there is an unmet need in the field for the development of vaccines that include novel, optimized trimeric Env immunogens, which can elicit broadly neutralizing antibody responses in order to allow for more successful HIV vaccination outcomes.

SUMMARY OF THE INVENTION

[0004] In a first aspect, the invention features a stabilized trimer having three gp140 polypeptides in which at least one (e.g., two or each) of the gp140 polypeptides includes an amino acid sequence having at least 90% identity (e.g., at least 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 2 (mEnv+).

[0005] In a related second aspect, the invention features a stabilized trimer having three gp140 polypeptides in which at least one (e.g., two or each) of the gp140 polypeptides includes an amino acid sequence having substantially the sequence of (e.g., 99% or more identity), or the sequence of, SEQ ID NO: 1 (mEnv) or SEQ ID NO: 3 (cEnv).

[0006] In some embodiments, the stabilized trimers are heterotrimers. The stabilized polypeptide heterotrimers may include two mosaic Env1 gp140 polypeptides (e.g., mEnv and/or mEnv+) each including an amino acid sequence having at least 90% identity (e.g., at least 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 1 or 2, and one clade C Env gp140 polypeptide (e.g., "cEnv" having SEQ ID NO: 3) including an amino acid sequence having at least 90% identity (e.g., at least 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 3 (cEnv) (e.g., two mEnv and one cEnv; two mEnv+ and one cEnv; or one mEnv, one mEnv+, and one cEnv). In other embodiments, the stabilized heterotrimers may include one mosaic Env1 gp140 polypeptide (e.g., mEnv and/or mEnv+) including an amino acid sequence having at least 90% identity (e.g., at least 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 1 or 2, and two clade C Env gp140 polypeptides (e.g., cEnv) each including an amino acid sequence having at least 90% (e.g., at least 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 3 (e.g., one mEnv and two cEnv; one mEnv+ and two cEnv). In some embodiments, the stabilized heterotrimer includes a combination of two different mosaic Env1 sequences (e.g., one mEnv and two mEnv+; two mEnv and one mEnv+; or one mEnv, one mEnv+, and cEnv). In some embodiments, the stabilized heterotrimer includes cEnv and two of the same Env1 polypeptides (e.g., two mEnv and one cEnv; two mEnv+ and one cEnv). In other embodiments, the stabilized heterotrimer includes one cEnv and two different mosaic Env1 polypeptides (e.g., one cEnv, one mEnv, and one mEnv+). In yet other embodiments, the stabilized heterotrimer includes two cEnv polypeptides and one mosaic Env1 polypeptide (e.g., two cEnv and one mEnv; or two cEnv and one mEnv+).

[0007] Alternatively, stabilized gp140 Env trimers can be prepared in which one or two of the gp140 Env polypeptides in the trimer has a sequence of SEQ ID NO: 4 (mosaic gp140 Env2, "mEnv2") or SEQ ID NO: 5 (mosaic gp140 Env3, "mEnv3"). In another embodiment said stabilized trimers have three gp140 polypeptides in which at least one (e.g., two or each) of the gp140 polypeptides includes an amino acid sequence having at least 90% identity (e.g., at least 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO:4 or 5. Preferably, mEnv2 or mEnv3 is modified in a similar manner to that of mEnv, mEnv+, or cEnv, which each possess a trimerization domain, as discussed herein below. Therefore, in some embodiments of the invention, stabilized gp140 Env trimers can be prepared which have the following constituent polypeptides: one mEnv and two mEnv2; two mEnv and one mEnv2; one mEnv+ and two mEnv2; two mEnv+ and one mEnv2; one cEnv and two mEnv2; two cEnv and one mEnv2; one mEnv, one mEnv+, and one mEnv2; one mEnv, one cEnv, and mEnv2; one mEnv+, one cEnv, and one mEnv2; one mEnv and two mEnv3; two mEnv and one mEnv3; one mEnv+ and two mEnv3; two mEnv+ and one mEnv3; one cEnv and two mEnv3; two cEnv and one mEnv3; one mEnv, one mEnv+, and one mEnv3; one mEnv, one cEnv, and mEnv3; one mEnv+, one cEnv, and one mEnv3; one mEnv, one mEnv2, and one mEnv3; one mEnv+, one mEnv2, and one mEnv3; or one cEnv, one mEnv2, and one mEnv3.

[0008] In a third aspect, the invention features a composition including a stabilized trimer of the first or second aspect. In an embodiment, the composition of the third aspect includes one or more different stabilized trimer(s). In other embodiments, the different stabilized trimer(s) has three gp140 polypeptides in which at least one (e.g., two or each) of the gp140 polypeptides comprises an amino acid sequence having at least 90% identity (e.g., at least 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NOs: 1, 2, or 3. In other embodiments, the different stabilized trimer(s) may be a homotrimer or a heterotrimer. In some embodiments, the compositions of the third aspect further include a pharmaceutically acceptable carrier, excipient, or diluent, and/or an adjuvant.

[0009] In a fourth aspect, the invention features a vaccine including any one of the compositions of the third aspect. In some embodiments, the vaccine is used for treating or reducing the risk of a human immunodeficiency virus (HIV) infection in a subject in need thereof. In some embodiments, the vaccine elicits production of neutralizing anti-HIV antisera (e.g., neutralizing anti-HIV-1 antisera) after administration to the subject. The anti-HIV antisera can neutralize HIV (e.g., HIV-1), for example, selected from any one or more of clade A, clade B, and clade C.

[0010] In a fifth aspect, the invention features a nucleic acid molecule having a nucleotide sequence that encodes at least one (e.g., two, or three or more) gp140 polypeptide, wherein the at least one gp140 polypeptide includes: (a) an amino acid sequence having at least 95% identity (e.g., at least 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 1; (b) an amino acid sequence having at least 95% identity (e.g., at least 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 2; or (c) an amino acid sequence having the sequence of SEQ ID NO: 3; (d) an amino acid sequence having the sequence of SEQ ID NO:4; (e) an amino acid sequence having the sequence of SEQ ID NO:5 or combinations thereof. In some embodiments, the nucleic acid molecule further includes a nucleotide sequence that encodes one or more different (e.g., a second, third, or fourth) gp140 polypeptides (e.g., gp140 polypeptides having at least 95% identity (e.g., at least 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 1, 2, and/or 3). In some embodiments, the nucleic acid molecule includes one or more internal ribosome entry site (IRES) sequences to allow for the expression of multiple peptide or polypeptide chains from the single nucleic acid molecule transcript.

[0011] In a sixth aspect, the invention features a vector including one or more nucleic acid molecules of the fifth aspect. In some embodiments, the vector is an adenovirus vector or a poxvirus vector. The adenovirus vector may be derived, for example, from a recombinant adenovirus serotype 11 (Ad11), adenovirus serotype 15 (Ad15), adenovirus serotype 24 (Ad24), adenovirus serotype 26 (Ad26), adenovirus serotype 34 (Ad34), adenovirus serotype 35 (Ad35), adenovirus serotype 48 (Ad48), adenovirus serotype 49 (Ad49), adenovirus serotype 50 (Ad50), Pan9 (AdC68), or a chimeric variant thereof (e.g., adenovirus serotype 5 HVR48 (Ad5HVR48)). The poxvirus vector may be derived, for example, from modified vaccinia virus Ankara (MVA).

[0012] In a seventh aspect, the invention provides a method of treating or reducing the risk of an HIV infection in a subject in need thereof by administering a therapeutically effective amount of a composition of the invention (e.g., any one of the stabilized trimers of the first or second aspect, the compositions of the third aspect, the vaccines of the fourth aspect, the nucleic acid molecules of the fifth aspect, and/or the vectors of the sixth aspect) to the subject, such as a mammal, for example, a human. Treating, according to this seventh aspect of the invention, can be therapeutic or prophylactic.

[0013] In an eighth aspect, the invention provides a method of reducing an HIV-mediated activity in a subject infected with HIV by administering a therapeutically effective amount of a composition of the invention (e.g., any one of the stabilized trimers of the first or second aspect, the compositions of the third aspect, the vaccines of the fourth aspect, the nucleic acid molecules of the fifth aspect, and/or the vectors of the sixth aspect) to the subject. In some embodiments, the HIV-mediated activity is viral spread, infection, or cell fusion. Cell fusion may be, for example, target cell entry or syncytial formation. In some embodiments, the HIV titer in the subject infected with HIV is decreased (e.g., by at least about 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% or more compared to HIV titer of the subject prior to treatment or a control subject infected with HIV but not treated with the composition(s) of the invention) after administration of the vaccine to the subject, such as a mammal, for example, a human.

[0014] In some embodiments, the composition (e.g., a vaccine) is administered intramuscularly, intravenously, intradermally, percutaneously, intraarterially, intraperitoneally, intralesionally, intracranially, intraarticularly, intraprostatically, intrapleurally, intratracheally, intranasally, intravitreally, intravaginally, intrarectally, topically, intratumorally, peritoneally, subcutaneously, subconjunctivally, intravesicularlly, mucosally, intrapericardially, intraumbilically, intraocularly, orally, topically, locally, by inhalation, by injection, by infusion, by continuous infusion, by localized perfusion bathing target cells directly, by catheter, by lavage, by gavage, in cremes, or in lipid compositions. In some embodiments, the subject is administered at least one dose (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or more doses) of the composition or is administered at least one dose (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or more doses) daily, weekly, monthly, or yearly. The administration period may be defined (e.g., 1-4 weeks, 1-12 months, 1-20 years) or may be for the life of the subject. In other embodiments, the subject is administered at least two doses (e.g., 2, 3, 4, 5, 6, 7, 8, 9, 10, or more doses) of the composition. In yet another embodiment, the composition is administered to said subject as a prime or a boost composition or in a prime-boost regimen. In a preferred embodiment, one or more composition(s) (e.g., a vaccine) of the invention is administered as a boost.

[0015] In another preferred embodiment, the invention features a method of treating or reducing the risk of an HIV infection in a subject by administering, as the prime composition in a prime-boost vaccination regimen, a vaccine that includes a first polypeptide having at least 85% amino acid sequence identity (e.g., 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 6, or at least a first vector (e.g., an adenoviral or poxvirus vector) that includes a first nucleic acid molecule that encodes this first polypeptide. Optionally, a second polypeptide having at least 85% identity (e.g., 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 7 may also be administered in combination with the first polypeptide, or, if a first vector encoding the first polypeptide is administered, a second vector (e.g., an adenoviral or poxvirus vector) including a second nucleic acid molecule that encodes the second polypeptide may be administered in combination with the first vector. The boost composition in this prime-boost regimen may include one or more of the composition(s) of the invention (e.g., any one of the stabilized trimers of the first or second aspect, the compositions of the third aspect, the vaccines of the fourth aspect, the nucleic acid molecules of the fifth aspect, and/or the vectors of the sixth aspect). In still other embodiments, the prime composition in this prime-boost regimen may include polypeptide(s) having the sequence(s) of any one of SEQ ID NOs: 8-32, or one or more vectors including nucleic acid molecules that encode any one of SEQ ID NOs: 8-32, followed by a boost including one or more of the composition(s) of the invention (e.g., any one of the stabilized trimers of the first or second aspect, the compositions of the third aspect, the vaccines of the fourth aspect, the nucleic acid molecules of the fifth aspect, and/or the vectors of the sixth aspect).

[0016] In still other embodiments, one or more composition(s) of the invention (e.g., a vaccine) is administered as the prime composition in a prime-boost regimen and the boost composition is a different vaccine composition, e.g., a vaccine that includes one or more polypeptides having at least 85% amino acid sequence identity (e.g., 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, any one or more of SEQ ID NOs: 6-32 (preferably the polypeptide of SEQ ID NO: 6 and/or 7), or one or more vectors (e.g., adenoviral or poxvirus vectors) each of which includes a nucleic acid molecule that encodes one or more polypeptides having at least 85% identity (e.g., 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, one or more of SEQ ID NOs: 8-32 (preferably the vector encodes the polypeptide of SEQ ID NO: 6 and/or 7).

[0017] In some embodiments, the subject may, for example, be administered polypeptide compositions of the invention (e.g., stabilized gp140 Env trimers of the invention) in a non-vectored composition. The polypeptide composition administered may include between approximately 1 .mu.g and 1 mg of stabilized Env trimers, and more preferably between 50 .mu.g and 300 .mu.g of stabilized Env trimers of the invention.

[0018] In other embodiments wherein the delivery vector is a virus, the subject can be administered at least about 1.times.10.sup.3 viral particles (vp)/dose or between 1.times.10.sup.1 and 1.times.10.sup.14 vp/dose, preferably between 1.times.10.sup.3 and 1.times.10.sup.12 vp/dose, and more preferably between 1.times.10.sup.5 and 1.times.10.sup.11 vp/dose. The composition may be administered, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 35, 40, 45, 50, 55, or 60 minutes, 2, 4, 6, 10, 15, or 24 hours, 2, 3, 5, or 7 days, 2, 4, 6 or 8 weeks, or even 3, 4, or 6 months pre-exposure or pre-diagnosis, or may be administered to the subject 15-30 minutes or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 20, 24, 48, or 72 hours, 2, 3, 5, or 7 days, 2, 4, 6 or 8 weeks, 3, 4, 6, or 9 months, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20 years or longer post-diagnosis or post-exposure or to HIV. The subject is administered one or more doses of the composition once daily, weekly, monthly, or yearly. When treating an HIV infection, the composition(s) of the invention (e.g., any one of the stabilized trimers of the first, second, or third aspect, the compositions of the fourth or fifth aspect, the vaccines of the sixth aspect, the nucleic acid molecules of the seventh aspect, and/or the vectors of the eighth aspect) may be administered to the subject either before the occurrence of symptoms of an HIV infection or disease/syndrome (e.g., acquired immune deficiency syndrome (AIDS)) or a definitive diagnosis, or after diagnosis or symptoms become evident. The composition(s) may be administered, for example, immediately after diagnosis or the clinical recognition of symptoms or 2, 4, 6, 10, 15, or 24 hours, 2, 3, 5, or 7 days, 2, 4, 6 or 8 weeks, or even 3, 4, or 6 months after diagnosis or detection of symptoms.

[0019] In a ninth aspect, the invention provides methods of manufacturing a vaccine for treating or reducing the risk of an HIV infection in a subject in need thereof. The method includes the steps of: (a) contacting a nucleic acid of the second aspect of the invention (e.g., a nucleic acid that further includes a vector of the eighth aspect) with a cell; and (b) expressing the nucleic acid in the cell to form a stabilized trimer. In some embodiments, the method is performed in vitro or ex vivo. In some embodiments, the cell is a bacterial, plant, or mammalian cell (e.g., a human or non-human mammalian cell). In a preferred embodiment, the mammalian cell is a 293T cell.

[0020] In a final aspect, the invention features a kit including: (a) a composition of the invention (e.g., any one of the stabilized trimers of the first, second, or third aspect, the compositions of the fourth or fifth aspect, the vaccines of the sixth aspect, the nucleic acid molecules of the seventh aspect, and/or the vectors of the eighth aspect, e.g., a vaccine including mEnv and/or mEnv+ trimers and cEnv trimers); (b) a pharmaceutically acceptable carrier, excipient, or diluent; and (c) instructions for use thereof. The kit may optionally include an adjuvant.

[0021] In preferred embodiments of all aspects of the invention, the subject is a mammal, preferably a primate, such as a human.

Definitions

[0022] As used herein, the term "about" means +/-10% of the recited value.

[0023] By "adenovirus" is meant a medium-sized (90-100 nm), non-enveloped icosahedral virus that includes a capsid and a double-stranded linear DNA genome. The adenovirus can be a naturally occurring, but isolated, adenovirus (e.g., sAd4287, sAd4310A, or sAd4312) or a recombinant adenovirus (e.g., replication-defective or replication competent sAd4287, sAd4310A, or sAd4312, or a chimeric variant thereof).

[0024] As used herein, "administering" is meant a method of giving a dosage of a pharmaceutical composition (e.g., a composition of the invention, such as any one of the vaccines of the first or fourth aspects, the compositions of the third aspect, the nucleic acid molecules of the fifth aspect, and/or the vectors of the sixth aspect) to a subject. The compositions utilized in the methods described herein can be administered, for example, intramuscularly, intravenously, intradermally, percutaneously, intraarterially, intraperitoneally, intralesionally, intracranially, intraarticularly, intraprostatically, intrapleurally, intratracheally, intranasally, intravitreally, intravaginally, intrarectally, topically, intratumorally, peritoneally, subcutaneously, subconjunctivally, intravesicularlly, mucosally, intrapericardially, intraumbilically, intraocularly, orally, topically, locally, by inhalation, by injection, by infusion, by continuous infusion, by localized perfusion bathing target cells directly, by catheter, by lavage, by gavage, in cremes, or in lipid compositions. The preferred method of administration can vary depending on various factors (e.g., the components of the composition being administered and the severity of the condition being treated).

[0025] As used herein, the term "clade" refers to related human immunodeficiency viruses (HIVs) classified according to their degree of genetic similarity. There are currently three groups of HIV-1 isolates: M, N and O. Group M (major strains) consists of at least ten clades, A through J. Group O (outer strains) may consist of a similar number of clades. Group N is a new HIV-1 isolate that has not been categorized in either group M or O. In certain exemplary embodiments, a composition of the invention (e.g., any one of the vaccines of the first or fourth aspects, the compositions of the third aspect, the nucleic acid molecules of the fifth aspect, and/or the vectors of the sixth aspect) as described herein will recognize and raise an immune response (e.g., neutralizing anti-HIV antisera) against two, three, four, five, six, seven, eight, nine, ten or more clades and/or two or more groups of HIV.

[0026] Throughout this specification and claims, the word "comprise," or variations such as "comprises" or "comprising," will be understood to imply the inclusion of a stated integer or group of integers but not the exclusion of any other integer or group of integers.

[0027] As used herein, the term "envelope glycoprotein" refers, but is not limited to, the glycoprotein that is expressed on the surface of the envelope of HIV virions and the surface of the plasma membrane of HIV infected cells. The env gene encodes gp160, which is proteolytically cleaved into the gp120 and gp41 Envelope (Env) proteins. Gp120 binds to the CD4 receptor on a target cell that has such a receptor, such as, e.g., a T-helper cell. Gp41 is non-covalently bound to gp120, and provides the second step by which HIV enters the cell. It is originally buried within the viral envelope, but when gp120 binds to a CD4 receptor, gp120 changes its conformation causing gp41 to become exposed, where it can assist in fusion with the host cell.

[0028] By "gene product" is meant to include mRNAs transcribed from a gene as well as polypeptides translated from those mRNAs.

[0029] By "heterologous nucleic acid molecule" or "heterologous gene" is meant any exogenous nucleic acid molecule (e.g., a nucleic acid molecule encoding an optimized gp140 Env polypeptide of the invention) that can be inserted into the a vector of the invention (e.g., an adenovirus or poxvirus vector) for transfer into a cell, tissue, or organism, for subsequent expression of a gene product of interest or fragment thereof encoded by the heterologous nucleic acid molecule or gene. In a preferred embodiment, the heterologous nucleic acid molecule, which can be administered to a cell or subject as part of the present invention, can include, but is not limited to, a nucleic acid molecule encoding at least one optimized mosaic Env polypeptide (e.g., a mosaic Env1 polypeptide, such as mEnv and mEnv+) and/or a clade C Env polypeptide (e.g., a clade C Env1 polypeptide, such as cEnv).

[0030] By "human immunodeficiency virus" or "HIV" is meant a virus of the genus Lentivirinae, part of the family of Retroviridae, and includes, but is not limited to, HIV type 1 (HIV-1) and HIV type 2 (HIV-2), two species of HIV that infect humans.

[0031] By "immune response" is meant any response to an antigen or antigenic determinant by the immune system of a subject (e.g., a human). Exemplary immune responses include humoral immune responses (e.g., production of antigen-specific antibodies, e.g., neutralizing antibodies (NAbs)) and cell-mediated immune responses (e.g., lymphocyte proliferation).

[0032] As used herein, the term "reducing" with respect to HIV refers to a reduction or decrease of an HIV-mediated activity (e.g., infection, fusion (e.g., target cell entry and/or syncytia formation), viral spread, etc.) and/or a decrease in viral titer. HIV-mediated activity and/or HIV titer may be decreased by 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 99.1%, 99.2%, 99.3%, 99.4%, 99.5%, 99.6%, 99.7%, 99.8%, 99.9% or more compared to that of a control subject (e.g., an untreated subject or a subject treated with a placebo).

[0033] By "neutralizing antibody" or "NAb" is meant an antibody which either is purified from, or is present in, serum and which recognizes a specific antigen (e.g., HIV Env glycoprotein, such as a gp140 polypeptide or a gp120 polypeptide) and inhibits the effect(s) of the antigen in the host (e.g., a human). As used herein, the antibody can be a single antibody or a plurality of antibodies.

[0034] "Nucleic acid" or "polynucleotide," as used interchangeably herein, refer to polymers of nucleotides of any length, and include DNA and RNA. The nucleotides can be deoxyribonucleotides, ribonucleotides, modified nucleotides or bases, and/or their analogs, or any substrate that can be incorporated into a polymer by DNA or RNA polymerase, or by a synthetic reaction. A polynucleotide may comprise modified nucleotides, such as methylated nucleotides and their analogs. If present, modification to the nucleotide structure may be imparted before or after assembly of the polymer. The sequence of nucleotides may be interrupted by non-nucleotide components. A polynucleotide may be further modified after synthesis, such as by conjugation with a label. Other types of modifications include, for example, "caps," substitution of one or more of the naturally occurring nucleotides with an analog, internucleotide modifications such as, for example, those with uncharged linkages (e.g., methyl phosphonates, phosphotriesters, phosphoamidates, carbamates, etc.) and with charged linkages (e.g., phosphorothioates, phosphorodithioates, etc.), those containing pendant moieties, such as, for example, proteins (e.g., nucleases, toxins, antibodies, signal peptides, poly-L-lysine, etc.), those with intercalators (e.g., acridine, psoralen, etc.), those containing chelators (e.g., metals, radioactive metals, boron, oxidative metals, etc.), those containing alkylators, those with modified linkages (e.g., alpha anomeric nucleic acids, etc.), as well as unmodified forms of the polynucleotide(s). Further, any of the hydroxyl groups ordinarily present in the sugars may be replaced, for example, by phosphonate groups, phosphate groups, protected by standard protecting groups, or activated to prepare additional linkages to additional nucleotides, or may be conjugated to solid or semi-solid supports. The 5' and 3' terminal OH can be phosphorylated or substituted with amines or organic capping group moieties of from 1 to 20 carbon atoms. Other hydroxyls may also be derivatized to standard protecting groups. Polynucleotides can also contain analogous forms of ribose or deoxyribose sugars that are generally known in the art, including, for example, 2'-O-methyl-, 2'-O-allyl, 2'-fluoro- or 2'-azido-ribose, carbocyclic sugar analogs, alpha-anomeric sugars, epimeric sugars such as arabinose, xyloses or lyxoses, pyranose sugars, furanose sugars, sedoheptuloses, acyclic analogs and a basic nucleoside analogs such as methyl riboside. One or more phosphodiester linkages may be replaced by alternative linking groups. These alternative linking groups include, but are not limited to, embodiments wherein phosphate is replaced by P(O)S ("thioate"), P(S)S ("dithioate"), "(O)NR.sub.2 ("amidate"), P(O)R, P(O)OR', CO or CH.sub.2 ("formacetal"), in which each R or R' is independently H or substituted or unsubstituted alkyl (1-20 C) optionally containing an ether (--O--) linkage, aryl, alkenyl, cycloalkyl, cycloalkenyl or araldyl. Not all linkages in a polynucleotide need be identical. The preceding description applies to all polynucleotides referred to herein, including RNA and DNA.

[0035] By "optimized" is meant an immunogenic polypeptide that is not a naturally-occurring peptide, polypeptide, or protein, such as a non-naturally occurring viral polypeptide (e.g., a gp140 polypeptide of the invention). Optimized viral polypeptide sequences are initially generated by modifying the amino acid sequence of one or more naturally-occurring viral gene products (e.g., peptides, polypeptides, and proteins, e.g., a viral Env polypeptide, e.g., a viral Env1, Env2, and/or Env3 polypeptide) to increase the breadth, intensity, depth, or longevity of the antiviral immune response (e.g., cellular or humoral immune responses) generated upon immunization (e.g., when incorporated into a composition of the invention, e.g., vaccine of the invention) of a subject (e.g., a human). Thus, the optimized viral polypeptide may correspond to a "parent" viral gene sequence; alternatively, the optimized viral polypeptide may not correspond to a specific "parent" viral gene sequence but may correspond to analogous sequences from various strains or quasi-species of a virus. Modifications to the viral gene sequence that can be included in an optimized viral polypeptide include amino acid additions, substitutions, and deletions. In one embodiment of the invention, the optimized polypeptide is a mosaic envelope protein, such as mosaic Env1 gp140 (see, e.g., U.S. Patent Publication No. 2012/0076812, herein incorporated by reference), or an optimized version thereof, which has been further altered to include a leader/signal sequence for maximal protein expression, cleavage site mutation(s), a factor Xa site, and/or a foldon trimerization domain (see, e.g., SEQ ID NO: 2). Methods of generating an optimized viral polypeptide are described in, e.g., Fisher et al. "Polyvalent Vaccine for Optimal Coverage of Potential T-Cell Epitopes in Global HIV-1 Variants," Nat. Med. 13(1):100-106 (2007) and International Patent Application Publication WO 2007/024941, herein incorporated by reference. Once the optimized viral polypeptide sequence is generated, the corresponding polypeptide can be produced or administered by standard techniques (e.g., recombinant viral vectors, such as the adenoviral vectors disclosed in International Patent Application Publications WO 2006/040330 and WO 2007/104792, herein incorporated by reference) and optionally assembled in conjunction with one or more other viral polypeptides of the invention to form a stabilized polypeptide trimer.

[0036] By "pharmaceutically acceptable diluent, excipient, carrier, or adjuvant" is meant a diluent, excipient, carrier, or adjuvant which is physiologically acceptable to the subject while retaining the therapeutic properties of the pharmaceutical composition with which it is administered. One exemplary pharmaceutically acceptable carrier is physiological saline. Other physiologically acceptable diluents, excipients, carriers, or adjuvants and their formulations are known to one skilled in the art (see, e.g., U.S. Pub. No. 2012/0076812).

[0037] By "recombinant," with respect to a composition (e.g., a vector of the invention, such as an adenovirus or poxvirus vector), is meant a composition that has been manipulated in vitro (e.g., using standard cloning techniques) to introduce changes (e.g., changes to the composition, e.g., adenovirus or poxvirus genome of an adenovirus or poxvirus vector, respectively) that enable binding to or containment of a therapeutic agent and/or that promote the introduction of a therapeutic agent into a subject (e.g., a human) or a host cell. The recombinant composition of the invention may therefore be an adenoviral or poxviral transport vector (e.g., a replication-defective adenoviral or poxviral vector) for delivery of one or more of the stabilized Env polypeptide trimers of the invention.

[0038] By "sequence identity" or "sequence similarity" is meant that the identity or similarity between two or more amino acid sequences, or two or more nucleotide sequences, is expressed in terms of the identity or similarity between the sequences. Sequence identity can be measured in terms of "percentage (%) identity," wherein the higher the percentage, the more identity shared between the sequences. Sequence similarity can be measured in terms of percentage similarity (which takes into account conservative amino acid substitutions); the higher the percentage, the more similarity shared between the sequences. Homologs or orthologs of nucleic acid or amino acid sequences possess a relatively high degree of sequence identity/similarity when aligned using standard methods. Sequence identity may be measured using sequence analysis software on the default setting (e.g., Sequence Analysis Software Package of the Genetics Computer Group, University of Wisconsin Biotechnology Center, 1710 University Avenue, Madison, Wis. 53705). Such software may match similar sequences by assigning degrees of homology to various substitutions, deletions, and other modifications.

[0039] As used herein, the term "stabilized polypeptide trimer" refers, but is not limited to, an oligomer that includes a protein and/or polypeptide sequence that increases the stability (e.g., via the presence of one or more oligomerization domains) of the trimeric structure (e.g., reduces dissociation of a trimer into monomeric units). In particular, the stabilized polypeptide trimer is composed of three mosaic Env proteins (e.g., Env1, Env2, and/or Env3), three clade C Env proteins, or a combination of one or more mosaic Env proteins and one or more clade C Env proteins, in which at least one Env protein includes an oligomerization domain. An "oligomerization domain" refers, but is not limited to, a polypeptide sequence that can be used to increase the stability of an oligomeric envelope protein such as, e.g., to increase the stability of a HIV gp140 trimer. Oligomerization domains can be used to increase the stability of homooligomeric polypeptides as well as heterooligomeric polypeptides. Oligomerization domains are well known in the art, and include "trimerization domains." A trimerization domain refers to an oligomerization domain that stabilizes trimeric polypeptides (e.g., trimers consisting of one or more of the gp140 polypeptides of the invention). Examples of trimerization domains include, but are not limited to, the T4-fibritin "foldon" trimerization domain; the coiled-coil trimerization domain derived from GCN4 (Yang et al. (2002) J. Virol. 76:4634); and the catalytic subunit of E. coli aspartate transcarbamoylase as a trimer tag (Chen et al. (2004) J. Virol. 78:4508).

[0040] A "subject" is a vertebrate, such as a mammal (e.g., a human). Mammals also include, but are not limited to, farm animals (such as cows), sport animals (e.g., horses), pets (such as cats and dogs), mice, and rats. A subject to be treated according to the methods described herein (e.g., a subject having an HIV infection or a subject at risk of an HIV infection) may be one who has been diagnosed by a medical practitioner as having such a condition. Diagnosis may be performed by any suitable means. A subject in whom the risk of an HIV infection is to be reduced or prevented may or may not have received such a diagnosis. One skilled in the art will understand that a subject to be treated according to the present invention may have been subjected to standard tests or may have been identified, without examination, as one at high risk due to the presence of one or more risk factors (e.g., a needle stick or known exposure to HIV or an HIV infected individual).

[0041] By "having substantially the sequence of" with respect to constructs of the invention is meant having at least 99% sequence identity to a recited reference sequence (e.g., having no more than 7 amino acid residue differences, e.g., 1, 2, 3, 4, 5, or 6 amino acid residue differences (e.g., additions, deletions, or conservative amino acid substitutions), relative to a recited reference sequence).

[0042] By "therapeutically effective amount" is meant an amount of a therapeutic agent that alone, or together with one or more additional (optional) therapeutic agents, produces beneficial or desired results upon administration to a mammal. The therapeutically effective amount depends upon the context in which the therapeutic agent is applied. For example, in the context of administering a vaccine composition including a therapeutic agent such as a stabilized gp140 trimer of the invention, the therapeutically effective amount of the vaccine composition is an amount sufficient to achieve a reduction in the level of HIV (e.g., as measured by a stabilization or decrease in HIV titer compared to a non-treated control), and/or an increase in the level of neutralizing anti-HIV antisera (e.g., as measured by an increase in serum neutralizing antibody levels relative to a non-treated control in a luciferase-based virus neutralization assay) as compared to a response obtained without administration of a composition of the invention (e.g., a vaccine composition), and/or to prevent the propagation of an infectious virus (e.g., HIV) in a subject (e.g., a human) having an increased risk of viral infection. Ideally, a therapeutically effective amount provides a therapeutic effect without causing a substantial cytotoxic effect in the subject. In general, a therapeutically effective amount of a composition administered to a subject (e.g., a human) will vary depending upon a number of factors associated with that subject, for example the overall health of the subject, the condition to be treated, or the severity of the condition. A therapeutically effective amount of a composition can be determined by varying the dosage of the product and measuring the resulting therapeutic response.

[0043] As used herein, and as well understood in the art, "treatment" is an approach for obtaining beneficial or desired results, such as clinical results. Beneficial or desired results can include, but are not limited to, alleviation or amelioration of one or more symptoms or conditions; diminishment of extent of disease, disorder, or condition; stabilization (i.e., not worsening) of a state of disease, disorder, or condition; prevention of spread of disease, disorder, or condition; delay or slowing the progress of the disease, disorder, or condition; amelioration or palliation of the disease, disorder, or condition; and remission (whether partial or total), whether detectable or undetectable. "Palliating" a disease, disorder, or condition means that the extent and/or undesirable clinical manifestations of the disease, disorder, or condition are lessened and/or time course of the progression is slowed or lengthened, as compared to the extent or time course in the absence of treatment.

[0044] The term "vaccine," as used herein, is defined as material used to provoke an immune response (e.g., the production of neutralizing anti-HIV antisera). Administration of the vaccine to a subject may confer at least partial immunity against HIV infection.

[0045] As used herein, the term "vector" is meant to include, but is not limited to, a virus (e.g., adenovirus or poxvirus), naked DNA, oligonucleotide, cationic lipid (e.g., liposome), cationic polymer (e.g., polysome), virosome, nanoparticle, or dentrimer. By "adenovirus vector" is meant a composition that includes one or more genes (non-structural or structural), or fragments thereof, from an adenoviral species (e.g., adenovirus serotype 11 (Ad11), adenovirus serotype 15 (Ad15), adenovirus serotype 24 (Ad24), adenovirus serotype 26 (Ad26), adenovirus serotype 34 (Ad34), adenovirus serotype 35 (Ad35), adenovirus serotype 48 (Ad48), adenovirus serotype 49 (Ad49), adenovirus serotype 50 (Ad50), Pan9 (AdC68), or a chimeric variant thereof (e.g., adenovirus serotype 5 HVR48 (Ad5HVR48))) that may be used to transmit one or more heterologous genes (e.g., one or more of the optimized gp140 polypeptides of the invention) from a viral or non-viral source to a subject or a host. The nucleic acid material of the viral vector may be encapsulated, e.g., in a lipid membrane or by structural proteins (e.g., capsid proteins), that may include one or more viral polypeptides (e.g., an envelope glycoprotein). The viral vector can be used to infect cells of a subject, which, in turn, promotes the translation of the heterologous gene(s) of the viral vector into a protein product (e.g., one or more of the gp140 Env polypeptides described herein, such that a stabilized trimer of the invention is formed).

[0046] The term "virus," as used herein, is defined as an infectious agent that is unable to grow or reproduce outside a host cell and that infects mammals (e.g., humans) or birds.

[0047] Other features and advantages of the invention will be apparent from the following Detailed Description, the drawings, and the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

[0048] FIG. 1A shows the amino acid sequence of a mosaic human immunodeficiency virus (HIV) gp140 Envelope (Env) polypeptide (mEnv; SEQ ID NO: 1) of the invention. The boxed region identifies the signal/leader sequence; the underlined region identifies gp120; the plain text region identifies the gp41 ectodomain; and the double-underscored region identifies the T4-fibritin "foldon" trimerization/oligomerization domain.

[0049] FIG. 1B shows the amino acid sequence of a mosaic HIV gp140 Env polypeptide (mEnv+; SEQ ID NO: 2) of the invention. This polypeptide sequence has been further optimized and includes a different signal/leader sequence to maximize protein expression (boxed region); the addition of cleavage site-inactivating mutations (E/E substitution mutations) (circled residues); and the addition of a Factor Xa site (zig-zag underlined region). Other regions are noted as in FIG. 1A.

[0050] FIG. 1C shows the amino acid sequence of an optimized clade C Env polypeptide (cEnv; SEQ ID NO: 3) of the invention. All regions are noted as in FIG. 1B.

[0051] FIG. 2 is a Western blot showing the expression levels of mEnv and mEnv+ in lanes 3 and 4, respectively, compared to cEnv and an expression vector control (pVRC8400) in lanes 1 and 2, respectively.

[0052] FIG. 3 is a gel filtration chromatograph depicting the uniform elution of mEnv+ trimers six days post-PEI transfection of 293T cells in roller bottles (750-ml of supernatant).

[0053] FIG. 4 is an image of a 4-16% gradient SDS-PAGE showing the peak fractions of mEnv+ following gel filtration elution. The final protein yield per purification is approximately 8.44 mg following gel filtration. The final concentration is approximately 5.62 mg/ml.

[0054] FIG. 5A is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with clade C gp140 Env (cEnv) homotrimer tested against a multi-clade panel of tier 1 neutralization-sensitive isolates including clade B (SF162.LS and Ba1.26) and clade C (MW965.26 and TV1.21) HIV-1 Envelope pseudoviruses, as well as Murine leukemia virus (MuLV) (negative control).

[0055] FIG. 5B is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with mosaic gp140 Env version-1 (mEnv) homotrimer tested against a multi-clade panel of tier 1 neutralization-sensitive isolates including clade B (SF162.LS and Ba1.26) and clade C (MW965.26 and TV1.21) HIV-1 Envelope pseudoviruses, as well as Murine leukemia virus (MuLV) (negative control).

[0056] FIG. 5C is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with both cEnv and mEnv trimers tested against a multi-clade panel of tier 1 neutralization-sensitive isolates including clade B (SF162.LS and Ba1.26) and clade C (MW965.26 and TV1.21) HIV-1 Envelope pseudoviruses, as well as Murine leukemia virus (MuLV) (negative control).

[0057] FIG. 6A is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with cEnv homotrimer, mEnv homotrimer, or both cEnv and mEnv trimers tested against a Tier 1B intermediate neutralization-sensitive clade A HIV-1 Envelope pseudovirus, MS208.A1.

[0058] FIG. 6B is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with cEnv homotrimer, mEnv homotrimer, or both cEnv and mEnv trimers tested against a Tier 1B intermediate neutralization-sensitive clade A HIV-1 Envelope pseudovirus, Q23.17.

[0059] FIG. 7A is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with cEnv homotrimer, mEnv homotrimer, or both cEnv and mEnv trimers tested against a Tier 1A highly neutralization-sensitive clade B HIV-1 Envelope pseudovirus, SF162.LS.

[0060] FIG. 7B is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with cEnv homotrimer, mEnv homotrimer, or both cEnv and mEnv trimers tested against a Tier 1B intermediate neutralization-sensitive clade B HIV-1 Envelope pseudovirus, BaL.26.

[0061] FIG. 7C is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with cEnv homotrimer, mEnv homotrimer, or both cEnv and mEnv trimers tested against a Tier 1B intermediate neutralization-sensitive clade B HIV-1 Envelope pseudovirus, SS1196.1.

[0062] FIG. 7D is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with cEnv homotrimer, mEnv homotrimer, or both cEnv and mEnv trimers tested against a Tier 1B intermediate neutralization-sensitive clade B HIV-1 Envelope pseudovirus, 6535.3.

[0063] FIG. 8A is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with cEnv homotrimer, mEnv homotrimer, or both cEnv and mEnv trimers tested against a Tier 1A highly neutralization-sensitive clade C HIV-1 Envelope pseudovirus, MW965.26.

[0064] FIG. 8B is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with cEnv homotrimer, mEnv homotrimer, or both cEnv and mEnv trimers tested against a Tier 1B intermediate neutralization-sensitive clade C HIV-1 Envelope pseudovirus, TV1.21.

[0065] FIG. 8C is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) with cEnv homotrimer, mEnv homotrimer, or both cEnv and mEnv trimers tested against a Tier 1B intermediate neutralization-sensitive clade C HIV-1 Envelope pseudovirus, ZM109F.PB4.

[0066] FIG. 8D is a graph showing a quantitative analysis of ID.sub.50 titer measuring TZM.b1 neutralizing antibody responses in guinea pigs pre-vaccination (Pre) and post-vaccination (Post) cEnv homotrimer, mEnv homotrimer, or both cEnv and mEnv trimers tested against a Tier 1B intermediate neutralization-sensitive clade C HIV-1 Envelope pseudovirus, ZM197M.PB7.

DETAILED DESCRIPTION OF THE INVENTION

[0067] Most antibodies induced by human immunodeficiency virus (HIV) (e.g., HIV type 1 (HIV-1)) are ineffective at preventing initiation or spread of infection, as they are either non-neutralizing or narrowly isolate-specific. One of the biggest challenges in HIV vaccine development is to design a HIV envelope immunogen that can induce protective, neutralizing antibodies effective against the diverse HIV strains that characterize the global pandemic. Indeed, the generation of "broadly neutralizing" antibodies that recognize relatively conserved regions on the envelope glycoprotein are rare. The present invention is based in part on the discovery of stabilized trimeric HIV envelope (Env) proteins and combinations thereof that elicit a surprisingly broad neutralizing antibody response in vivo.

Stabilized Gp140 Env Trimers of the Invention

[0068] The invention features novel stabilized HIV gp140 Env polypeptide trimers. Stabilized trimers of the invention feature optimized gp140 Env polypeptides. These polypeptides may have, or may be modified to include, one or more of the following domains and/or mutations. The gp140 Env polypeptide constituents may include a T4-fibritin "foldon" trimerization domain sequence to support stable trimer formation (see, e.g., FIGS. 1A, 1B, and 1C, depicting the amino acid sequences of mEnv (SEQ ID NO: 1), mEnv+(SEQ ID NO: 2), and cEnv (SEQ ID NO: 3), respectively, which each include a C-terminal trimerization domain). The optimized gp140 Env polypeptides may also include cleavage site mutations to enhance stability, for example, by eliminating cleavage by a peptidase (see, e.g., FIGS. 1B and 1C, which depict the mutated residues as circled residues in the mEnv+ and cEnv amino acid sequence, respectively, between the gp120 and gp41 moieties). The optimized gp140 Env polypeptides may additionally have a signal/leader sequence to maximize protein expression (see, e.g., the signal/leader sequence of mEnv+ or cEnv, demarcated in FIGS. 1B and 1C, respectively). Further, the optimized gp140 Env polypeptides may include a Factor Xa cleavage site (SRIEGR), which may, for example, be incorporated upstream of (N-terminal to) the trimerization domain (see, e.g., FIGS. 1B and 1C, which depict the location of the Factor Xa cleavage site in the amino acid sequence of mEnv+ and cEnv, respectively). As discussed herein below, the stabilized trimers of the invention are preferably homotrimers (e.g., trimers composed of three identical polypeptides). Heterotrimers (e.g., trimers composed of three polypeptides that are not all identical) of the invention are also envisioned.

[0069] The stabilized trimers of the invention are preferably stabilized homotrimers that include, for example, three gp140 polypeptides, wherein each of the gp140 polypeptides includes an amino acid sequence having at least 90% identity (e.g., at least 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 2 (mEnv+). The invention also features stabilized homotrimers including three gp140 polypeptides, wherein each of said gp140 polypeptides includes an amino acid sequence having substantially the sequence of (e.g., 99% or more identity), or the sequence of, SEQ ID NO: 1 (mEnv) or SEQ ID NO: 3 (cEnv) or SEQ ID NO:4 or SEQ ID NO:5. Exemplary homotrimers of the invention include Trimers 1, 2, and 3 in Table 1 below.

[0070] Alternatively, the stabilized trimer of the invention may be a stabilized heterotrimer. For example, the stabilized trimer may be a stabilized heterotrimer that includes a combination of two different mosaic Env1 sequences (e.g., one mEnv and two mEnv+; two mEnv and one mEnv+; or one mEnv, one mEnv+, and cEnv). In some instances, the stabilized heterotrimer includes cEnv and two of the same Env1 polypeptides (e.g., two mEnv and one cEnv; two mEnv+ and one cEnv). In other instances, the stabilized heterotrimer includes one cEnv and two different mosaic Env1 polypeptides (e.g., one cEnv, one mEnv, and one mEnv+).

[0071] Alternatively, the stabilized heterotrimer may include one or two constituent Env polypeptides including an amino acid sequence of SEQ ID NO: 4 (mosaic gp140 Env2, "mEnv2") or SEQ ID NO: 5 (mosaic gp140 Env3, "mEnv3"). Preferably, mEnv2 or mEnv3 is modified in a similar manner to that of mEnv, mEnv+, or cEnv, which each possess a trimerization domain, as discussed above and as depicted in FIGS. 1A-1C. Therefore, other stabilized heterotrimers of the invention include trimers having the following constituent polypeptides: one mEnv and two mEnv2; two mEnv and one mEnv2; one mEnv+ and two mEnv2; two mEnv+ and one mEnv2; one cEnv and two mEnv2; two cEnv and one mEnv2; one mEnv, one mEnv+, and one mEnv2; one mEnv, one cEnv, and mEnv2; one mEnv+, one cEnv, and one mEnv2; one mEnv and two mEnv3; two mEnv and one mEnv3; one mEnv+ and two mEnv3; two mEnv+ and one mEnv3; one cEnv and two mEnv3; two cEnv and one mEnv3; one mEnv, one mEnv+, and one mEnv3; one mEnv, one cEnv, and mEnv3; one mEnv+, one cEnv, and one mEnv3; one mEnv, one mEnv2, and one mEnv3; one mEnv+, one mEnv2, and one mEnv3; or one cEnv, one mEnv2, and one mEnv3. Exemplary heterotrimers of the invention include Trimers 4-31 in Table 1 below.

TABLE-US-00001 TABLE 1 Exemplary stabilized Env trimers Exemplary Constituent Polypeptides Trimer Polypeptide 1 Polypeptide 2 Polypeptide 3 Trimer 1 SEQ ID NO: 1 SEQ ID NO: 1 SEQ ID NO: 1 Trimer 2 SEQ ID NO: 2 SEQ ID NO: 2 SEQ ID NO: 2 Trimer 3 SEQ ID NO: 3 SEQ ID NO: 3 SEQ ID NO: 3 Trimer 4 SEQ ID NO: 1 SEQ ID NO: 2 SEQ ID NO: 2 Trimer 5 SEQ ID NO: 1 SEQ ID NO: 1 SEQ ID NO: 2 Trimer 6 SEQ ID NO: 1 SEQ ID NO: 3 SEQ ID NO: 3 Trimer 7 SEQ ID NO: 1 SEQ ID NO: 1 SEQ ID NO: 3 Trimer 8 SEQ ID NO: 2 SEQ ID NO: 3 SEQ ID NO: 3 Trimer 9 SEQ ID NO: 2 SEQ ID NO: 2 SEQ ID NO: 3 Trimer 10 SEQ ID NO: 1 SEQ ID NO: 2 SEQ ID NO: 3 Trimer 11 SEQ ID NO: 1 SEQ ID NO: 4 SEQ ID NO: 4 Trimer 12 SEQ ID NO: 1 SEQ ID NO: 1 SEQ ID NO: 4 Trimer 13 SEQ ID NO: 2 SEQ ID NO: 4 SEQ ID NO: 4 Trimer 14 SEQ ID NO: 2 SEQ ID NO: 2 SEQ ID NO: 4 Trimer 15 SEQ ID NO: 3 SEQ ID NO: 4 SEQ ID NO: 4 Trimer 16 SEQ ID NO: 3 SEQ ID NO: 3 SEQ ID NO: 4 Trimer 17 SEQ ID NO: 1 SEQ ID NO: 2 SEQ ID NO: 4 Trimer 18 SEQ ID NO: 1 SEQ ID NO: 3 SEQ ID NO: 4 Trimer 19 SEQ ID NO: 2 SEQ ID NO: 3 SEQ ID NO: 4 Trimer 20 SEQ ID NO: 1 SEQ ID NO: 5 SEQ ID NO: 5 Trimer 21 SEQ ID NO: 1 SEQ ID NO: 1 SEQ ID NO: 5 Trimer 22 SEQ ID NO: 2 SEQ ID NO: 5 SEQ ID NO: 5 Trimer 23 SEQ ID NO: 2 SEQ ID NO: 2 SEQ ID NO: 5 Trimer 24 SEQ ID NO: 3 SEQ ID NO: 5 SEQ ID NO: 5 Trimer 25 SEQ ID NO: 3 SEQ ID NO: 3 SEQ ID NO: 5 Trimer 26 SEQ ID NO: 1 SEQ ID NO: 2 SEQ ID NO: 5 Trimer 27 SEQ ID NO: 1 SEQ ID NO: 3 SEQ ID NO: 5 Trimer 28 SEQ ID NO: 2 SEQ ID NO: 3 SEQ ID NO: 5 Trimer 29 SEQ ID NO: 1 SEQ ID NO: 4 SEQ ID NO: 5 Trimer 30 SEQ ID NO: 2 SEQ ID NO: 4 SEQ ID NO: 5 Trimer 31 SEQ ID NO: 3 SEQ ID NO: 4 SEQ ID NO: 5

Stabilized Gp140 Env Trimer Compositions of the Invention

[0072] Any one of the stabilized gp140 Env trimers of the invention, such as those described above, can be included in compositions (e.g., pharmaceutical compositions). Accordingly, the invention features a composition including at least one of the stabilized gp140 Env trimers described above (e.g., at least 2, 3, 4, 5, or more different types of stabilized gp140 Env trimers may be included in a single composition or vaccine). For example, a composition including a homotrimer of mEnv or mEnv+ may additionally include an additional stabilized trimer form, for example, an additional stabilized trimer form that includes three gp140 polypeptides, wherein each of the gp140 polypeptides comprises an amino acid sequence having at least 90% identity (e.g., at least 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 3 (cEnv).

[0073] The compositions may include a stabilized homotrimer including three mosaic Env1 polypeptides, for example, three polypeptides of mEnv or three polypeptides of mEnv+ or three optimized clade C Env polypeptides, such as the cEnv polypeptide of SEQ ID NO: 3.

[0074] Alternatively, the compositions may also include a stabilized heterotrimer. For example, the composition (e.g., a vaccine) may include at least one stabilized heterotrimer that includes a combination of two different mosaic Env1 sequences (e.g., one mEnv and two mEnv+; and two mEnv and one mEnv+). In some embodiments, the composition (e.g., a vaccine) includes at least one stabilized heterotrimer that includes cEnv and Env1 polypeptide (e.g., two mEnv and one cEnv; two mEnv+ and one cEnv; two cEnv and one mEnv; and two cEnv and one mEnv+). In other embodiments, the compositions include at least one stabilized heterotrimer that includes one cEnv and two different mosaic Env1 polypeptides (e.g., one cEnv, one mEnv, and one mEnv+).

[0075] Optionally, the compositions may include at least one stabilized heterotrimer having one or two constituent Env polypeptides including an amino acid sequence of SEQ ID NO: 4 (mosaic gp140 Env2, "mEnv2") or SEQ ID NO: 5 (mosaic gp140 Env3, "mEnv3"). As noted above, preferably, mEnv2 or mEnv3 may be, and is preferably, modified in a similar manner to that of mEnv, mEnv+, or cEnv, which each possess a trimerization domain, as discussed above and depicted in FIGS. 1A-1C. Therefore, other vaccines of the invention may include stabilized heterotrimers having the following constituent polypeptides: one mEnv and two mEnv2; two mEnv and one mEnv2; one mEnv+ and two mEnv2; two mEnv+ and one mEnv2; one cEnv and two mEnv2; two cEnv and one mEnv2; one mEnv, one mEnv+, and one mEnv2; one mEnv, one cEnv, and mEnv2; one mEnv+, one cEnv, and one mEnv2; one mEnv and two mEnv3; two mEnv and one mEnv3; one mEnv+ and two mEnv3; two mEnv+ and one mEnv3; one cEnv and two mEnv3; two cEnv and one mEnv3; one mEnv, one mEnv+, and one mEnv3; one mEnv, one cEnv, and mEnv3; one mEnv+, one cEnv, and one mEnv3; one mEnv, one mEnv2, and one mEnv3; one mEnv+, one mEnv2, and one mEnv3; or one cEnv, one mEnv2, and one mEnv3.

[0076] Any one of the compositions of the invention may further include a pharmaceutically acceptable carrier, excipient, or diluent, and/or an adjuvant.

Stabilized Gp140 Env Trimer Vaccines of the Invention

[0077] The invention features vaccines including at least one of the compositions of the invention described herein and above. The vaccine may be used for treating or reducing the risk of a human immunodeficiency virus (HIV) infection in a subject in need thereof. For example, the vaccine may elicit production of neutralizing anti-HIV antisera (e.g., neutralizing anti-HIV-1 antisera) after administration to the subject. The anti-HIV antisera may also be able to neutralize HIV (e.g., HIV-1), for example, selected from any one or more of clade A, clade B, and clade C.

Nucleic Acid Molecules of the Invention

[0078] In some embodiments, the vaccines of the invention include one or more nucleic acid molecules of the invention, such as a nucleic acid molecule having a nucleotide sequence that encodes a gp140 polypeptide, in which the gp140 polypeptide includes (a) an amino acid sequence having at least 95% identity (e.g., 96%, 97%, 98%, 99%, or 100% identity) to SEQ ID NO: 1, (b) an amino acid sequence having at least 95% identity (e.g., 96%, 97%, 98%, 99%, or 100% identity) to SEQ ID NO: 2, and/or (c) an amino acid sequence having the sequence of SEQ ID NO: 3, (d) an amino acid sequence having the sequence of SEQ ID NO:4, (e) an amino acid sequence having the sequence of SEQ ID NO:5 and/or combinations thereof. As discussed below, vectors (e.g., viral vectors, such as an adenovirus or poxvirus vector) of the invention can include one or more of these nucleic acid molecules. Accordingly, vaccines of the invention may include one or more of these vectors. The stabilized gp140 Env trimer polypeptides of the invention, as well as vaccines, nucleic acids, and vectors that incorporate one or more optimized gp140 Env polypeptides, can be recombinantly expressed in a cell or organism, or can be directly administered to a subject (e.g., a human) infected with, or at risk of becoming infected with, HIV (e.g., HIV-1).

Vectors of the Invention

[0079] As noted above, the invention features vectors including one or more of the nucleic acid molecules of the invention. The vector can be, for example, a carrier (e.g., a liposome), a plasmid, a cosmid, a yeast artificial chromosome, or a virus (e.g., an adenovirus vector or a poxvirus vector) that includes one or more of the nucleic acid molecules of the invention.

[0080] An adenovirus vector of the invention can be derived from a recombinant adenovirus serotype 11 (Ad11), adenovirus serotype 15 (Ad15), adenovirus serotype 24 (Ad24), adenovirus serotype 26 (Ad26), adenovirus serotype 34 (Ad34), adenovirus serotype 35 (Ad35), adenovirus serotype 48 (Ad48), adenovirus serotype 49 (Ad49), adenovirus serotype 50 (Ad50), Pan9 (AdC68), or a chimeric variant thereof (e.g., adenovirus serotype 5 HVR48 (Ad5HVR48)). A poxvirus vector of the invention may be derived, for example, from modified vaccinia virus Ankara (MVA). These vectors can include additional nucleic acid sequences from several sources.

[0081] Vectors of the invention can be constructed using any recombinant molecular biology technique known in the art. The vector, upon transfection or transduction of a target cell or organism, can be extrachromosomal or integrated into the host cell chromosome. The nucleic acid component of a vector can be in single or multiple copy number per target cell, and can be linear, circular, or concatamerized. The vectors can also include internal ribosome entry site (IRES) sequences to allow for the expression of multiple peptide or polypeptide chains from a single nucleic acid transcript (e.g., a polycistronic vector, e.g., a bi- or tri-cistronic vector).

[0082] Vectors of the invention can also include gene expression elements that facilitate the expression of the encoded polypeptide(s) of the invention (e.g., SEQ ID NOs: 1 (mEnv), 2 (mEnv+), and/or 3 (cEnv) or polypeptides having amino acids sequences with at least 90%, 91%, 92$, 93&, 94%, 95%, 96%, 97%, 98%, or 99% sequence identity to SEQ ID NO: 1 or 2). Gene expression elements include, but are not limited to, (a) regulatory sequences, such as viral transcription promoters and their enhancer elements, such as the SV40 early promoter, Rous sarcoma virus LTR, and Moloney murine leukemia virus LTR; (b) splice regions and polyadenylation sites such as those derived from the SV40 late region; and (c) polyadenylation sites such as in SV40. Also included are plasmid origins of replication, antibiotic resistance or selection genes, multiple cloning sites (e.g., restriction enzyme cleavage loci), and other viral gene sequences (e.g., sequences encoding viral structural, functional, or regulatory elements, such as the HIV long terminal repeat (LTR)).

[0083] Exemplary vectors are described below.

[0084] Adenovirus Vectors

[0085] Recombinant adenoviruses offer several significant advantages for use as vectors for the expression of, for example, one or more of the optimized gp140 Env polypeptides of the invention. The viruses can be prepared to high titer, can infect non-replicating cells, and can confer high-efficiency transduction of target cells ex vivo following contact with a target cell population. Furthermore, adenoviruses do not integrate their DNA into the host genome. Thus, their use as expression vectors has a reduced risk of inducing spontaneous proliferative disorders. In animal models, adenoviral vectors have generally been found to mediate high-level expression for approximately one week. The duration of transgene expression (expression of a nucleic acid molecule of the invention) can be prolonged by using cell or tissue-specific promoters. Other improvements in the molecular engineering of the adenovirus vector itself have produced more sustained transgene expression and less inflammation. This is seen with so-called "second generation" vectors harboring specific mutations in additional early adenoviral genes and "gutless" vectors in which virtually all the viral genes are deleted utilizing a Cre-Lox strategy (Engelhardt et al., Proc. Natl. Acad. Sci. USA 91:6196 (1994) and Kochanek et al., Proc. Natl. Acad. Sci. USA 93:5731 (1996), each herein incorporated by reference).

[0086] The rare serotype and chimeric adenoviral vectors disclosed in International Patent Application Publications WO 2006/040330 and WO 2007/104792, each incorporated by reference herein, are particularly useful as vectors of the invention. For example, recombinant adenovirus serotype 11 (Ad11), adenovirus serotype 15 (Ad15), adenovirus serotype 24 (Ad24), adenovirus serotype 26 (Ad26), adenovirus serotype 34 (Ad34), adenovirus serotype 35 (Ad35), adenovirus serotype 48 (Ad48), adenovirus serotype 49 (Ad49), adenovirus serotype 50 (Ad50), Pan9 (AdC68), or a chimeric variant thereof (e.g., adenovirus serotype 5 HVR48 (Ad5HVR48) can encode and/or deliver one or more of the optimized gp140 Env polypeptides of the invention to facilitate formation and presentation of gp140 Env trimer formation. In some embodiments, one or more recombinant adenovirus vectors can be administered to the subject in order to express gp140 Env polypeptides for formation of stabilized trimers of the invention.

[0087] Adeno-Associated Virus (AAV) Vectors

[0088] Adeno-associated viruses (AAV), derived from non-pathogenic parvoviruses, can also be used to facilitate delivery and/or expression of one or more of the optimized gp140 Env polypeptides of the invention as these vectors evoke almost no anti-vector cellular immune response, and produce transgene expression lasting months in most experimental systems.

[0089] Stabilized trimers of the invention may be produced upon expression of the gp140 Env polypeptides described herein using an AAV vector.

[0090] Retrovirus Vectors

[0091] Retroviruses are useful for the expression of optimized gp140 Env polypeptides of the invention. Unlike adenoviruses, the retroviral genome is based in RNA. When a retrovirus infects a cell, it will introduce its RNA together with several enzymes into the cell. The viral RNA molecules from the retrovirus will produce a double-stranded DNA copy, called a provirus, through a process called reverse transcription. Following transport into the cell nucleus, the proviral DNA is integrated in a host cell chromosome, permanently altering the genome of the transduced cell and any progeny cells that may derive from this cell. The ability to permanently introduce a gene into a cell or organism is the defining characteristic of retroviruses used for gene therapy. Retroviruses include lentiviruses, a family of viruses including human immunodeficiency virus (HIV) that includes several accessory proteins to facilitate viral infection and proviral integration. Current, "third-generation," lentiviral vectors feature total replication incompetence, broad tropism, and increased gene transfer capacity for mammalian cells (see, e.g., Mangeat and Trono, Human Gene Therapy 16(8):913 (2005) and Wiznerowicz and Trono, Trends Biotechnol. 23(1):42 (2005), each herein incorporated by reference).

[0092] Stabilized trimers of the invention may be produced upon expression of the gp140 Env polypeptides described herein using a retrovirus vector.

[0093] Other Viral Vectors

[0094] Besides adenoviral and retroviral vectors, other viral vectors and techniques are known in the art that can be used to facilitate delivery and/or expression of one or more of the optimized gp140 Env polypeptides of the invention in a cell (e.g., a blood cell, such as a lymphocyte) or subject (e.g., a human) in order to promote formation of the trimers of the invention. These viruses include poxviruses (e.g., vaccinia virus and modified vaccinia virus Ankara (MVA); see, e.g., U.S. Pat. Nos. 4,603,112 and 5,762,938, each incorporated by reference herein), herpesviruses, togaviruses (e.g., Venezuelan Equine Encephalitis virus; see, e.g., U.S. Pat. No. 5,643,576, incorporated by reference herein), picornaviruses (e.g., poliovirus; see, e.g., U.S. Pat. No. 5,639,649, incorporated by reference herein), baculoviruses, and others described by Wattanapitayakul and Bauer (Biomed. Pharmacother. 54:487 (2000), incorporated by reference herein).

[0095] Naked DNA and Oligonucleotides

[0096] Naked DNA or oligonucleotides encoding one or more of the optimized gp140 Env polypeptides of the invention can also be used to express these polypeptides in a cell or a subject (e.g., a human) in order to promote formation of the trimers of the invention. See, e.g., Cohen, Science 259:1691-1692 (1993); Fynan et al., Proc. Natl. Acad. Sci. USA, 90:11478 (1993); and Wolff et al., BioTechniques 11:474485 (1991), each herein incorporated by reference. This is the simplest method of non-viral transfection. Efficient methods for delivery of naked DNA exist, such as electroporation and the use of a "gene gun," which shoots DNA-coated gold particles into a cell using high pressure gas and carrier particles (e.g., gold).

[0097] Lipoplexes and Polyplexes

[0098] To improve the delivery of a nucleic acid encoding one or more of the optimized gp140 Env polypeptides of the invention into a cell or subject in order to promote formation of the trimers of the invention, lipoplexes (e.g., liposomes) and polyplexes can be used to protect the nucleic acid from undesirable degradation during the transfection process. The nucleic acid molecules can be covered with lipids in an organized structure like a micelle or a liposome. When the organized structure is complexed with the nucleic acid molecule it is called a lipoplex. There are three types of lipids: anionic (negatively-charged), neutral, or cationic (positively-charged). Lipoplexes that utilize cationic lipids have proven utility for gene transfer. Cationic lipids, due to their positive charge, naturally complex with the negatively-charged nucleic acid. Also as a result of their charge they interact with the cell membrane, endocytosis of the lipoplex occurs, and the nucleic acid is released into the cytoplasm. The cationic lipids also protect against degradation of the nucleic acid by the cell.

[0099] Complexes of polymers with nucleic acids are called polyplexes. Most polyplexes consist of cationic polymers and their production is regulated by ionic interactions. One large difference between the methods of action of polyplexes and lipoplexes is that polyplexes cannot release their nucleic acid load into the cytoplasm, so, to this end, co-transfection with endosome-lytic agents (to lyse the endosome that is made during endocytosis) such as inactivated adenovirus must occur. However, this is not always the case; polymers such as polyethylenimine have their own method of endosome disruption as does chitosan and trimethylchitosan.

[0100] Exemplary cationic lipids and polymers that can be used in combination with one or more of the nucleic acid molecules encoding one or more of the optimized gp140 Env polypeptides of the invention to form lipoplexes or polyplexes include, but are not limited to, polyethylenimine, lipofectin, lipofectamine, polylysine, chitosan, trimethylchitosan, and alginate.

[0101] Hybrid Methods

[0102] Several hybrid methods of gene transfer combine two or more techniques. Virosomes, for example, combine lipoplexes (e.g., liposomes) with an inactivated virus. This approach has been shown to result in more efficient gene transfer in respiratory epithelial cells compared to either viral or liposomal methods alone. Other methods involve mixing other viral vectors with cationic lipids or hybridizing viruses. Each of these methods can be used to facilitate transfer of one or more of the nucleic acid molecules of the invention encoding one or more of the optimized gp140 Env polypeptides of the invention into a cell or subject in order to promote formation of the trimers of the invention.

[0103] Dendrimers

[0104] Dendrimers may be also be used to transfer one or more of the nucleic acid molecules of the invention encoding one or more of the optimized gp140 Env polypeptides of the invention into a cell or subject in order to promote formation of the trimers of the invention. A dendrimer is a highly branched macromolecule with a spherical shape. The surface of the particle may be functionalized in many ways, and many of the properties of the resulting construct are determined by its surface. In particular it is possible to construct a cationic dendrimer (i.e., one with a positive surface charge). When in the presence of genetic material (e.g., a nucleic acid molecule), charge complimentarily leads to a temporary association of the nucleic acid with the cationic dendrimer. On reaching its destination the dendrimer-nucleic acid complex is then taken into the cell via endocytosis.

Methods of Treatment Using the Compositions of the Invention

[0105] In Vivo Administration

[0106] The invention features methods for the in vivo administration of a therapeutically effective amount of one or more of the compositions (i.e., vaccines, vectors, stabilized trimer(s), nucleic acids, polypeptides, stabilized trimer, or other composition thereof described herein) of the invention to a subject (e.g., a human, e.g., a human infected with HIV or a human at risk of an HIV infection) in need thereof. Upon administering one or more of the compositions of the invention to the subject, the stabilized trimers of the invention can elicit protective or therapeutic immune responses (e.g., cellular or humoral immune responses, e.g., neutralizing anti-HIV antisera production, e.g., anti-HIV antisera that neutralizes HIV selected from clade A, clade B, and/or clade C HIV) directed against the viral immunogens.

[0107] The method may be used to treat or reduce the risk of an HIV infection in a subject in need thereof. The subject may be infected with HIV or may be at risk of exposure to HIV. The compositions of the invention can be administered to a subject infected with HIV to treat AIDS. Examples of symptoms of diseases caused by a viral infection, such as AIDS, that can be treated using the compositions of the invention include, for example, fever, muscle aches, coughing, sneezing, runny nose, sore throat, headache, chills, diarrhea, vomiting, rash, weakness, dizziness, bleeding under the skin, in internal organs, or from body orifices like the mouth, eyes, or ears, shock, nervous system malfunction, delirium, seizures, renal (kidney) failure, personality changes, neck stiffness, dehydration, seizures, lethargy, paralysis of the limbs, confusion, back pain, loss of sensation, impaired bladder and bowel function, and sleepiness that can progress into coma or death. These symptoms, and their resolution during treatment, may be measured by, for example, a physician during a physical examination or by other tests and methods known in the art.

[0108] In cases in which the subject is infected with HIV, the method may be used to reduce an HIV-mediated activity (e.g., infection, fusion (e.g., target cell entry and/or syncytia formation), viral spread, etc.) and/or to decrease HIV titer in the subject. HIV-mediated activity and/or HIV titer may be decreased, for example, by 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 99.1%, 99.2%, 99.3%, 99.4%, 99.5%, 99.6%, 99.7%, 99.8%, 99.9% or more compared to that of a control subject (e.g., an untreated subject or a subject treated with a placebo).

[0109] One or more of the compositions of the invention may also be administered in the form of a vaccine for prophylactic treatment of a subject (e.g., a human) at risk of an HIV infection.

[0110] The compositions utilized in the methods described herein can be formulated, for example, for administration intramuscularly, intravenously, intradermally, percutaneously, intraarterially, intraperitoneally, intralesionally, intracranially, intraarticularly, intraprostatically, intrapleurally, intratracheally, intranasally, intravitreally, intravaginally, intrarectally, topically, intratumorally, peritoneally, subcutaneously, subconjunctivally, intravesicularlly, mucosally, intrapericardially, intraumbilically, intraocularly, orally, topically, locally, by inhalation, by injection, by infusion, by continuous infusion, by localized perfusion bathing target cells directly, by catheter, by lavage, by gavage, in cremes, or in lipid compositions.

[0111] The preferred method of administration can vary depending on various factors (e.g., the components of the composition being administered and the severity of the condition being treated). Formulations suitable for oral or nasal administration may consist of liquid solutions, such as an effective amount of the composition dissolved in a diluent (e.g., water, saline, or PEG-400), capsules, sachets, tablets, or gels, each containing a predetermined amount of the chimeric Ad5 vector composition of the invention. The pharmaceutical composition may also be an aerosol formulation for inhalation, for example, to the bronchial passageways. Aerosol formulations may be mixed with pressurized, pharmaceutically acceptable propellants (e.g., dichlorodifluoromethane, propane, or nitrogen). In particular, administration by inhalation can be accomplished by using, for example, an aerosol containing sorbitan trioleate or oleic acid, for example, together with trichlorofluoromethane, dichlorofluoromethane, dichlorotetrafluoroethane, or any other biologically compatible propellant gas.

[0112] Immunogenicity of the composition of the invention may be significantly improved if it is co-administered with an immunostimulatory agent or adjuvant. Suitable adjuvants well-known to those skilled in the art include, for example, aluminum phosphate, aluminum hydroxide, QS21, Quil A (and derivatives and components thereof), calcium phosphate, calcium hydroxide, zinc hydroxide, glycolipid analogs, octodecyl esters of an amino acid, muramyl dipeptides, polyphosphazene, lipoproteins, ISCOM matrix, DC-Chol, DDA, cytokines, and other adjuvants and derivatives thereof.

[0113] Compositions according to the invention described herein may be formulated to release the composition immediately upon administration (e.g., targeted delivery) or at any predetermined time period after administration using controlled or extended release formulations. Administration of the composition in controlled or extended release formulations is useful where the composition, either alone or in combination, has (i) a narrow therapeutic index (e.g., the difference between the plasma concentration leading to harmful side effects or toxic reactions and the plasma concentration leading to a therapeutic effect is small; generally, the therapeutic index, TI, is defined as the ratio of median lethal dose (LD.sub.50) to median effective dose (ED.sub.50)); (ii) a narrow absorption window at the site of release (e.g., the gastro-intestinal tract); or (iii) a short biological half-life, so that frequent dosing during a day is required in order to sustain a therapeutic level.

[0114] Many strategies can be pursued to obtain controlled or extended release in which the rate of release outweighs the rate of metabolism of the pharmaceutical composition. For example, controlled release can be obtained by the appropriate selection of formulation parameters and ingredients, including, for example, appropriate controlled release compositions and coatings. Suitable formulations are known to those of skill in the art. Examples include single or multiple unit tablet or capsule compositions, oil solutions, suspensions, emulsions, microcapsules, microspheres, nanoparticles, patches, and liposomes.

[0115] The compositions of the invention may be administered to provide pre-infection prophylaxis or after a subject has been diagnosed with an HIV infection or a disease with an etiology traceable to an HIV infection (e.g., AIDS). The composition may be administered, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 35, 40, 45, 50, 55, or 60 minutes, 2, 4, 6, 10, 15, or 24 hours, 2, 3, 5, or 7 days, 2, 4, 6 or 8 weeks, or even 3, 4, or 6 months pre-infection or pre-diagnosis, or may be administered to the subject 15-30 minutes or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 20, 24, 48, or 72 hours, 2, 3, 5, or 7 days, 2, 4, 6 or 8 weeks, 3, 4, 6, or 9 months, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, or 20 years or longer post-diagnosis or post-infection to HIV. The subject can be administered a single dose of the composition(s) (or, e.g., 2, 3, 4, 5, 6, 7, 8, 9, 10, or more doses) or the subject can be administered at least one dose (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or more doses) daily, weekly, monthly, or yearly. The administration period may be defined (e.g., 1-4 weeks, 1-12 months, 1-20 years) or may be for the life of the subject. The composition(s) may also be administered to said subject as a prime or a boost composition or in a prime-boost regimen. In a preferred embodiment, the composition (e.g., vaccine) of the invention is administered as a boost following administration of an additional composition (e.g., vaccine) as a prime, where the prime includes at least a first vector including a first nucleic acid molecule that encodes a polypeptide having at least 85% amino acid sequence identity (e.g., 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 6, and optionally a second vector including a second nucleic acid molecule that encodes a polypeptide having at least 85% identity (e.g., 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 7. The boost in this regimen includes one or more of the composition(s) of the invention (e.g., any one of the stabilized trimers, the compositions, the vaccines, the nucleic acid molecules, and/or the vectors of the invention). In still other embodiments, the prime includes at least a first vector including a nucleic acid molecule that encodes a polypeptide having the sequence of any one of SEQ ID NOs: 8-32. Alternatively, the composition (e.g., vaccine) of the invention is administered as a prime. In some embodiments where the composition of the invention is administered as a prime, a different vaccine (e.g., a vaccine including at least a first vector including a first nucleic acid molecule that encodes a polypeptide having at least 85% amino acid sequence identity (e.g., 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 6, and optionally a second vector including a second nucleic acid molecule that encodes a polypeptide having at least 85% identity (e.g., 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 7; or a vaccine including at least a first vector including a nucleic acid molecule that encodes a polypeptide having the sequence of any one of SEQ ID NOs: 8-32) is administered as a boost.

[0116] When treating disease (e.g., AIDS), the compositions of the invention may be administered to the subject either before the occurrence of symptoms or a definitive diagnosis or after diagnosis or symptoms become evident. For example, the composition may be administered, for example, immediately after diagnosis or the clinical recognition of symptoms or 2, 4, 6, 10, 15, or 24 hours, 2, 3, 5, or 7 days, 2, 4, 6 or 8 weeks, or even 3, 4, or 6 months after diagnosis or detection of symptoms.

[0117] The compositions may be sterilized by conventional sterilization techniques, or may be sterile filtered. The resulting aqueous solutions may be packaged for use as is, or lyophilized, the lyophilized preparation may be administered in powder form or combined with a sterile aqueous carrier prior to administration. The pH of the preparations typically will be between 3 and 11, more preferably between 5 and 9 or between 6 and 8, and most preferably between 7 and 8, such as 7 to 7.5. The resulting compositions in solid form may be packaged in multiple single dose units, each containing a fixed amount of any one or more of the optimized gp140 Env nucleic acids required to support formation of one or more of the stabilized trimers of the invention and/or one or more of the stabilized trimers of the invention of the invention and, if desired, one or more immunomodulatory agents, such as in a sealed package of tablets or capsules, or in a suitable dry powder inhaler (DPI) capable of administering one or more doses.

[0118] Dosages

[0119] The dose of a composition of the invention (e.g., a vaccine including one or more of the stabilized gp140 Env trimers of the invention) or the number of treatments using a composition of the invention may be increased or decreased based on the severity of, occurrence of, or progression of, the HIV infection and/or disease related to the HIV infection (e.g., AIDS) in the subject (e.g., based on the severity of one or more symptoms of HIV infection/AIDS described above).

[0120] The stabilized gp140 Env trimer compositions of the invention can be administered in a therapeutically effective amount that provides an immunogenic and/or protective effect against HIV or target protein of HIV (e.g., gp140). The subject may, for example, be administered polypeptide compositions of the invention (e.g., stabilized gp140 Env trimers of the invention) in a non-vectored composition. The polypeptide composition administered may include between approximately 1 .mu.g and 1 mg of stabilized Env trimers, and more preferably between 50 .mu.g and 300 .mu.g of stabilized Env trimers of the invention.

[0121] Alternatively, the subject may be administered, in the form of a viral vector, at least about 1.times.10.sup.3 viral particles (vp)/dose or between 1.times.10.sup.1 and 1.times.10.sup.14 vp/dose, preferably between 1.times.10.sup.3 and 1.times.10.sup.12 vp/dose, and more preferably between 1.times.10.sup.5 and 1.times.10.sup.11 vp/dose.

[0122] Viral particles include nucleic acid molecules encoding one or more of the optimized gp140 Env polypeptides of the invention and are surrounded by a protective coat (a protein-based capsid with hexon and fiber proteins). Viral particle number can be measured based on, for example, lysis of vector particles, followed by measurement of the absorbance at 260 nm (see, e.g,. Steel, Curr. Opin. Biotech., 1999).

[0123] The dosage administered depends on the subject to be treated (e.g., the age, body weight, capacity of the immune system, and general health of the subject being treated), the form of administration (e.g., as a solid or liquid), the manner of administration (e.g., by injection, inhalation, dry powder propellant), and the cells targeted (e.g., epithelial cells, such as blood vessel epithelial cells, nasal epithelial cells, or pulmonary epithelial cells). The composition is preferably administered in an amount that provides a sufficient level of the stabilized gp140 Env trimer gene product (e.g., a level of stabilized gp140 Env trimer that elicits an immune response without undue adverse physiological effects in the subject caused by the immunogenic trimer).

[0124] In addition, single or multiple administrations of the compositions of the present invention may be given (pre- or post-infection and/or pre- or post-diagnosis) to a subject (e.g., one administration or administration two or more times). For example, subjects who are particularly susceptible to, for example, HIV infection may require multiple treatments to establish and/or maintain protection against the virus. Levels of induced immunity provided by the pharmaceutical compositions described herein can be monitored by, for example, measuring amounts of neutralizing anti-HIV secretory and serum antibodies. The dosages may then be adjusted or repeated as necessary to trigger the desired level of immune response. For example, the immune response triggered by a single administration (prime) of a composition of the invention may not be sufficiently potent and/or persistent to provide effective protection. Accordingly, in some embodiments, repeated administration (boost), such that a prime-boost regimen is established, may significantly enhance humoral and cellular responses to the antigen of the composition.

[0125] Alternatively, as applies to recombinant therapy, the efficacy of treatment can be determined by monitoring the level of the one or more optimized gp140 Env trimers expressed by or present in a subject (e.g., a human) following administration of the compositions of the invention. For example, the blood or lymph of a subject can be tested for the immunogenic trimer(s) using, for example, standard assays known in the art (see, e.g., Human Interferon-Alpha Multi-Species ELISA kit (Product No. 41105) and the Human Interferon-Alpha Serum Sample kit (Product No. 41110) from Pestka Biomedical Laboratories (PBL), Piscataway, N.J.).

[0126] A single dose of one or more of the compositions of the invention may achieve protection, pre-infection or pre-diagnosis. In addition, a single dose administered post-infection or post-diagnosis can function as a treatment according to the present invention.

[0127] A single dose of one or more of the compositions of the invention can also be used to achieve therapy in subjects being treated for a disease. Multiple doses (e.g., 2, 3, 4, 5, or more doses) can also be administered, in necessary, to these subjects.

[0128] Carriers, Excipients, Diluents

[0129] Therapeutic formulations of the compositions of the invention (e.g., vaccines, vectors, stabilized trimer(s), nucleic acid molecules, etc.) may be prepared using standard methods known in the art by mixing the active ingredient having the desired degree of purity with optional physiologically acceptable carriers, excipients, or stabilizers (Remington's Pharmaceutical Sciences (20.sup.th edition), ed. A. Gennaro, 2000, Lippincott, Williams & Wilkins, Philadelphia, Pa.). Acceptable carriers, include saline, or buffers such as phosphate, citrate and other organic acids; antioxidants including ascorbic acid; low molecular weight (less than about 10 residues) polypeptides; proteins, such as serum albumin, gelatin or immunoglobulins; hydrophilic polymers such as polyvinylpyrrolidone, amino acids such as glycine, glutamine, asparagines, arginine or lysine; monosaccharides, disaccharides, and other carbohydrates including glucose, mannose, or dextrins; chelating agents such as EDTA; sugar alcohols such as mannitol or sorbitol; salt-forming counterions such as sodium; and/or nonionic surfactants such as TWEEN.TM., PLURONICS.TM., or PEG.

[0130] Optionally, but preferably, the formulation contains a pharmaceutically acceptable salt, preferably sodium chloride, and preferably at about physiological concentrations. Optionally, the formulations of the invention can contain a pharmaceutically acceptable preservative. In some embodiments the preservative concentration ranges from 0.1 to 2.0%, typically v/v. Suitable preservatives include those known in the pharmaceutical arts. Benzyl alcohol, phenol, m-cresol, methylparaben, and propylparaben are preferred preservatives. Optionally, the formulations of the invention can include a pharmaceutically acceptable surfactant at a concentration of 0.005 to 0.02%.

[0131] Adjuvants

[0132] Any one of the compositions of the invention (e.g., vaccines, vectors, stabilized trimer(s), nucleic acid molecules, etc.) can be formulated to include, be administered concurrently with, and/or be administered in series with one or more pharmaceutically acceptable adjuvants to increase the immunogenicity of the composition (e.g., upon administration to a subject in need thereof, e.g., a subject infected with HIV or at risk of an HIV infection). Adjuvants approved for human use include aluminum salts (alum). These adjuvants have been useful for some vaccines including hepatitis B, diphtheria, polio, rabies, and influenza. Other useful adjuvants include Complete Freund's Adjuvant (CFA), Incomplete Freund's Adjuvant (IFA), muramyl dipeptide (MDP), synthetic analogues of MDP, N-acetylmuramyl-L-alanyl-D-isoglutamyl-L-alanine-2-[1,2-dipalmitoyl-s-gly- -cero-3-(hydroxyphosphoryloxy)]ethylamide (MTP-PE) and compositions containing a metabolizable oil and an emulsifying agent, wherein the oil and emulsifying agent are present in the form of an oil-in-water emulsion having oil droplets substantially all of which are less than one micron in diameter.

[0133] Ex Vivo Transfection and Transduction

[0134] The present invention also provides for the ex vivo transfection or transduction of cells, followed by administration of these cells back into a subject (e.g., human) to allow for the expression of one or more of the optimized gp140 Env polypeptides of the invention that have immunogenic properties. In one embodiment, the cells are autologous to the treated subject. Cells can be transfected or transduced ex vivo with, for example, one or more vectors of the invention to allow for the temporal or permanent expression of one or more of the optimized gp140 Env polypeptides in the treated subject. Upon administering these modified cells to the subject, the one or more vectors of the invention will be expressed, eliciting protective or therapeutic immune responses (e.g., cellular or humoral immune responses, e.g., production of neutralizing anti-HIV antisera) directed against the gp140 immunogenic trimer or trimers that form.

[0135] Cells that can be isolated and transfected or transduced ex vivo according to the methods of invention include, but are not limited to, blood cells, skin cells, fibroblasts, endothelial cells, skeletal muscle cells, hepatocytes, prostate epithelial cells, and vascular endothelial cells. Stem cells are also appropriate cells for transduction or transfection with a vector of the invention. Totipotent, pluripotent, multipotent, or unipotent stem cells, including bone marrow progenitor cells and hematopoietic stem cells (HSC), can be isolated and transfected or transduced with, for example, a vector of the invention, and administered to a subject according to the methods of the invention.

[0136] The method of transfection or transduction has a strong influence on the strength and longevity of protein expression (e.g., stabilized gp140 trimer expression) in the transfected or transduced cell, and subsequently, in the subject (e.g., human) receiving the cell. The present invention provides vectors that are temporal (e.g., adenoviral vectors) or long-lived (e.g., retroviral vectors) in nature. Regulatory sequences (e.g., promoters and enhancers) are known in the art that can be used to regulate protein expression. The type of cell being transfected or transduced also has a strong bearing on the strength and longevity of protein expression. For example, cell types with high rates of turnover can be expected to have shorter periods of protein expression.

[0137] Kits

[0138] The invention provides kits that include a pharmaceutical composition containing a vaccine, vector, stabilized trimer, or optimized viral polypeptide of the invention, and a pharmaceutically-acceptable carrier, in a therapeutically effective amount for preventing or treating a viral infection. The kits include instructions to allow a clinician (e.g., a physician or nurse) to administer the composition contained therein.

[0139] Preferably, the kits include multiple packages of the single-dose pharmaceutical composition(s) containing an effective amount of a vaccine, vector, stabilized trimer, or optimized viral polypeptide of the invention. Optionally, instruments or devices necessary for administering the pharmaceutical composition(s) may be included in the kits. For instance, a kit of this invention may provide one or more pre-filled syringes containing an effective amount of a vaccine, vector, stabilized trimer, or optimized viral polypeptide of the invention. Furthermore, the kits may also include additional components such as instructions or administration schedules for a patient infected with or at risk of being infected with a virus to use the pharmaceutical composition(s) containing a vaccine, vector, stabilized trimer, or optimized viral polypeptide of the invention.

[0140] It will be apparent to those skilled in the art that various modifications and variations can be made in the compositions, methods, and kits of the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

EXAMPLES

[0141] The present invention is illustrated by the following examples, which are in no way intended to be limiting of the invention.

Example 1. Materials and Methods

Western Blot Immunodetection

[0142] Volumes containing 10-.mu.g equivalents of DNA expression vectors pVRC8400 empty, pVRC8400 mosaic gp140 version-1 (expression vector for a polypeptide including the amino acid sequence of SEQ ID NO: 1), or pVRC8400 mosaic gp140 version-2 (expression vector for a polypeptide including the amino acid sequence of SEQ ID NO: 2) were each made up to 100 .mu.l with Dulbeco's Modified Eagle Medium (DMEM; Invitrogen). 40 .mu.l of Lipofectamine (Invitrogen) transfection reagent was then added 60 .mu.l DMEM and 100 .mu.l of this mix added to each DNA vector followed by gentle agitation and incubation at room temperature for 30 minutes. 293T cells grown to approximately 70-80% confluency in T-25 flasks were washed once with 2.5 ml DMEM, 2.3 ml of DMEM added followed by 200 .mu.l DNA/Lipofectamine mix. Cells were then incubated at 37.degree. C., 10% CO.sub.2 for 48 hours. 48 hours post-transfection, 0.5 ml of supernatant from each T-25 flask was harvested, briefly spun and 20 .mu.l placed in a fresh eppendorf tube. 5 .mu.l of 5.times. reducing sample buffer (Pierce) was added to each tube, each sample heated for 5 minutes at 100.degree. C. and then place on ice to cool. 20 .mu.l of each sample was loaded on a 4-15% pre-cast SDS-PAGE (Biorad), and the gel run at 150V for approximately 70 minutes. Transfer of protein from gel to membrane was performed using the iblot dry blotting system (Invitrogen) as per vendor protocol using PVDF gel transfer stacks. Membrane blocking was performed overnight at 4.degree. C. in 20 ml of PBS-T Block (i.e., Dulbeco's phosphate buffered saline (Invitrogen), containing 0.2% V/V Tween 20 (Sigma) and 5% W/V non-fat milk powder) on an orbital shaker. 10 .mu.l of monoclonal HRP conjugated anti-His tag antibody (Qiagen) was then added to 20 ml PBS-T Block (1:2000 dilution) followed by incubation on an orbital shaker at room temperature for 1 hour. Membranes were washed 5 times in PBS-T block, membranes touch dried on absorbent paper to remove excess block, and for detection, Amersham ECL Plus Western Blotting Detection System (GE Healthcare) was utilized.

Roller Bottle Transfection and Protein Purification

[0143] DMEM growth media supplemented with 10% Fetal Bovine Serum (FBS) was used to grow 293T to confluence in Cell Bind.RTM. roller bottles (Corning), growth media removed, followed by addition of 250 ml of pre-warmed Freestyle 293 expression medium (Invitrogen) and incubation for 2 hours at 37.degree. C., 5% CO.sub.2. 250 .mu.g of DNA expression vector pVRC8400 mosaic gp140 version-2 was mixed with 320 .mu.l of polyethylenimine (PEI) (1 mg/ml) added to 20 ml of room temperature freestyle 293 medium, incubated at room temperature for 20 minutes and then added in each roller bottle followed by incubation for 6 days in 37.degree. C., 5% CO.sub.2. The cell supernatant was harvested at 6 days after medium change. The Histidine-tagged optimized mosaic gp140 Env version-2 protein, including SEQ ID NO: 2, was purified by Ni-NTA (Qiagen) followed by size-exclusion chromatography. Briefly, after a clarifying spin and the addition of imidazole to the final concentration of 10 mM, the cell supernatant was loaded onto a nickel column at a flow rate of 0.8 mL/min and was washed with 20 mM imidazole in PBS followed by further washing with 40 mM imidazole in PBS. The protein then was eluted with 300 mM imidazole in PBS. The fractions containing the purified protein were pooled, concentrated, and further purified by gel-filtration chromatography on Superose 6 (GE Healthcare) in a column running buffer containing 25 mM Tris (pH 7.5) and 150 mM NaCl. The purified proteins were concentrated, frozen in liquid nitrogen, and stored at -80.degree. C.

Animals and Immunizations

[0144] Outbred female Hartley guinea pigs (Elm Hill Labs) were housed at the Animal Research Facility of Beth Israel Deaconess Medical Center under protocols approved by the Institutional Animal Care and Use Committee. Guinea pigs were immunized by bilateral intramuscular injections in the upper quadriceps with clade C gp140 Env polypeptide (i.e., homotrimer of three molecules including the amino acid sequence of SEQ ID NO: 3), mosaic gp140 Env (i.e., homotrimer of three molecules including the amino acid sequence of SEQ ID NO: 1), or a clade C gp140 Env/mosaic gp140 Env mixture (100 .mu.g/animal) at 4-week intervals (weeks 0, 4, and 8) using 500 .mu.l of a dual adjuvant combination comprising 15% (v/v) oil-in-water Emulsigen (MVP Laboratories)/PBS and 50 .mu.g of immunostimulatory di-nucleotide CpG DNA (5'-TCGTCGTTGTCGTTTTGTCGTT-3') (Midland Reagent Company). The clade C gp140 Env/mosaic gp140 Env mixture contained 50 .mu.g of each protein. Serum samples were obtained from the vena cava of anesthetized animals 4 weeks after each immunization.

Neutralizing Antibody Assay in TZM.b1 Cells

[0145] Neutralizing antibody responses against HIV-1 Env pseudoviruses were measured using luciferase-based virus neutralization assays in TZM.b1 cells. These assays measure the reduction in luciferase reporter gene expression in TZM.b1 cells following a single round of virus infection. The ID.sub.50 was calculated as the serum dilution that resulted in a 50% reduction in relative luminescence units compared with the virus control wells after the subtraction of cell control relative luminescence units. Briefly, threefold serial dilutions of serum samples were performed in duplicate (96-well flat-bottomed plate) in 10% DMEM growth medium (100 .mu.l per well). Virus was added to each well in a volume of 50 .mu.l, and the plates were incubated for 1 hour at 37.degree. C. Then TZM.b1 cells were added (1.times.10.sup.4 per well in 100 .mu.l volume) in 10% DMEM growth medium containing diethylaminoethyldextran (Sigma) at a final concentration of 11 .mu.g/ml. Murine leukemia virus (MuLV) negative controls were included in all assays. HIV-1 Envelope pseudoviruses included clade A (MS208.A1 and Q23.17) isolates, clade B (SF162.LS, BaL.26, SS1196.1 and 6535.3), and clade C (MW965.26, TV1.21, ZM109F.PB4 and ZM197M.PB7) isolates.

Example 2. Generation of Optimized Mosaic Gp140 Env1 Trimers of the Invention

[0146] mEnv+(polypeptide including the amino acid sequence of SEQ ID NO: 2) has been modified from mEnv (polypeptide including the amino acid sequence of SEQ ID NO: 1) in the following manner. First, the leader peptide secretion sequence has been made identical to that used in the stabilized clade C gp140 Env (cEnv) trimer polypeptide constituent (SEQ ID NO: 3). Second, cleavage site mutations have been incorporated between gp120 and gp41 moieties to further enhance stability. Third, a factor Xa protease cleavage site (SRIEGR) has been incorporated upstream of the foldon trimerization domain. The amino acid sequences of the three Env polypeptides (SEQ ID NOs: 1-3) and the specific modifications present in each are depicted in FIGS. 1A-1C.

[0147] Surprisingly, these modifications resulted in a remarkably stabilized gp140 Env1 trimer (e.g., an mEnv+ trimer of the invention). In order to assess stability, we first compared the expression levels of mEnv+ relative to mEnv by Western blot analysis. To this end, T-25 flasks containing 80% confluent 293T cells were transfected with eukaryotic expression vector pVRC8400 expressing mEnv or mEnv+ using lipofectamine 2000 (Invitrogen) and 10 .mu.l of each supernatant analyzed by Western blot immunodetection using anti-Histidine tag HRP (Qiagen). FIG. 2 depicts a Western blot showing the expression levels of mEnv and mEnv+ in lanes 3 and 4, respectively. Notably, the expression levels of mEnv+ were remarkably higher compared to that of mEnv or cEnv, which was used as a positive control (see lane 1). In this experiment, empty pVRC8400 was used as a negative control (see lane 2).

[0148] As noted above, the mEnv+ was expressed in 293T cells and purified following cell lysis and clarification by virtue of a His-tag using a Ni-NTA (Qiagen) column. The collected fractions following imidazole elution were pooled, concentrated, and further purified by gel-filtration chromatography on Superose 6 (GE Healthcare) in a column running buffer containing 25 mM Tris (pH 7.5) and 150 mM NaCl. A chromatography trace of depicting mEnv+ elution from the Superose 6 column is depicted in FIG. 3. The peak fractions (i.e., the fractions obtained under the peak curve in FIG. 3) were then individually analyzed on a 4-15% pre-case SDS-PAGE gel (FIG. 4). The SDS-PAGE gel demonstrates that the gel-filtration purification successfully resulted in the isolation of a homogenous population of mEnv+ polypeptides. As described further herein, the immunogenicity of these stabilized gp140 Env trimers (both homotrimers of mEnv and mEnv+, as well as a combination of mEnv and cEnv homotrimers) was assessed in guinea pigs using a panel of tier 1 isolates from clades A, B, and C.

Example 3. Analysis of Neutralizing Antibody Responses

[0149] Preclinical evaluation of candidate Env immunogens is critical for concept testing and for prioritization of vaccine candidates. Luciferase-based virus neutralization assays in TZM.b1 cells (Li et al. (2005) J. Virol. 79:10108; Montefiori (2005) Curr. Prot. Immunol. Chapter 12: Unit 1211) have been developed as high throughput assay that can be standardized (Montefiori (2009) Methods Mol. Biol. 485:395; Polonis et al. (2008) Virology 375:315). A luciferase reporter gene assay was performed in TZM.b1 cells (a genetically engineered cell line that expresses CD4, CXCR4 and CCRS and contains Tat-inducible Luc and (3-Gal reporter reporter genes) based on single round infection with molecularly cloned Env-pseudotyped viruses. This assay resulted in a high success rate in single round infections, increased assay capacity (e.g., a two day assay), increased precision (e.g., accurately measured 50% neutralization), and an improved level of standardization (e.g., a stable cell line). The luciferase reporter gene assay was optimized and validated.

[0150] To assess the neutralization profile afforded by the stabilized gp140 Env trimers of the invention, TZM.b1 assays were performed in which guinea pig sera obtained pre-vaccination (Pre) and four weeks after the third vaccination (Post) with cEnv homotrimers, mEnv homotrimers, or both cEnv and mEnv homotrimers were tested against a multi-clade panel of tier 1 neutralization-sensitive isolates including clade B (SF162.LS and Ba1.26), and clade C (MW965.26 and TV1.21) HIV-1 Envelope pseudoviruses and Murine leukemia virus (MuLV) (negative control) (FIGS. 5A-5C).

[0151] TZM.b1 assays were also performed in which guinea pig sera obtained pre-vaccination (Pre) and four weeks after the third vaccination (Post) using cEnv homotrimers, mEnv homotrimers, or both cEnv and mEnv heterotrimers were tested against HIV-1 Envelope pseudoviruses of intermediate neutralization-sensitive tier-1 (Tier 1B) clade A isolates (MS208.A1 and Q23.17) (FIGS. 6A-6B), highly neutralization sensitive (Tier 1A) and Tier 1B clade B isolates (SF162.LS, BaL.26, SS1196.1, and 6535.3) (FIGS. 7A-7D), and Tier 1A and Tier 1B clade C isolates (MW965.26, TV1.21, ZM109F.PB4, and ZM197M.PB7) (FIGS. 8A-8D).

[0152] Unexpectedly, quantitation of ID.sub.50 titer data collectively demonstrate that the combination of cEnv and mEnv homotrimers induced neutralizing antibody responses that were superior to either cEnv or mEnv alone. Specifically, the combination of cEnv and mEnv was particularly surprising in terms of expanding the breadth of neutralizing antibody responses induced. Such an expansion of neutralizing antibody breadth has not previously been described and is a major unmet need in the field.

Example 4. Treating or Reducing the Risk of an HIV Infection in a Subject Using the Compositions of the Invention

[0153] The composition of the invention (e.g., a vaccine of the invention) may be administered to a subject (e.g., a human infected with HIV or at risk of an HIV infection) in a prime-boost vaccination regimen to treat or reduce the risk of an HIV infection in a subject in need thereof. For example, one or more of the compositions of the invention, such as vaccine including mEnv, mEnv+, or cEnv trimers, or combination of mEnv or mEnv+ and cEnv trimers may be administered as a boost. Prior to administration of the boost, the subject is administered as a prime vaccination at least a first vector including a first nucleic acid molecule that encodes a polypeptide having at least 85% amino acid sequence identity (e.g., 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 6, and optionally a second vector including a second nucleic acid molecule that encodes a polypeptide having at least 85% identity (e.g., 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99% identity) to, or the sequence of, SEQ ID NO: 7.

[0154] The composition is preferably administered in an amount that provides a sufficient level of the stabilized gp140 Env trimer gene product (e.g., a level of stabilized gp140 Env trimer that elicits an immune response without undue adverse physiological effects in the subject caused by the immunogenic trimer). If the composition is non-vectored, the polypeptide composition administered may include between approximately 1 .mu.g and 1 mg of stabilized Env trimers, and more preferably between 50 .mu.g and 300 .mu.g of stabilized Env trimers of the invention. Alternatively, the subject may be administered, in the form of a viral vector, at least about 1.times.10.sup.3 viral particles (vp)/dose or between 1.times.10.sup.1 and 1.times.10.sup.14 vp/dose, preferably between 1.times.10.sup.3 and 1.times.10.sup.12 vp/dose, and more preferably between 1.times.10.sup.5 and 1.times.10.sup.11 vp/dose.

[0155] Following administration of the composition of the invention in a prime-boost regimen, the patient can be assessed for changes in one or more symptoms or, in particular, the level of HIV titer in the treated subject, and the regimen can be repeated as necessary as described herein above.

OTHER EMBODIMENTS

[0156] While the invention has been described in connection with specific embodiments thereof, it will be understood that it is capable of further modifications and this application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure that come within known or customary practice within the art to which the invention pertains and may be applied to the essential features hereinbefore set forth.

[0157] All publications and patent applications mentioned in this specification are herein incorporated by reference to the same extent as if each independent publication or patent application was specifically and individually indicated to be incorporated by reference in their entirety.

Sequence CWU 1

1

321712PRTArtificial SequenceSynthetic Construct (Mosaic gp140 Env1) 1Met Arg Val Thr Gly Ile Arg Lys Asn Tyr Gln His Leu Trp Arg Trp1 5 10 15Gly Thr Met Leu Leu Gly Ile Leu Met Ile Cys Ser Ala Ala Gly Lys 20 25 30Leu Trp Val Thr Val Tyr Tyr Gly Val Pro Val Trp Lys Glu Ala Thr 35 40 45Thr Thr Leu Phe Cys Ala Ser Asp Ala Lys Ala Tyr Asp Thr Glu Val 50 55 60His Asn Val Trp Ala Thr His Ala Cys Val Pro Thr Asp Pro Asn Pro65 70 75 80Gln Glu Val Val Leu Glu Asn Val Thr Glu Asn Phe Asn Met Trp Lys 85 90 95Asn Asn Met Val Glu Gln Met His Glu Asp Ile Ile Ser Leu Trp Asp 100 105 110Gln Ser Leu Lys Pro Cys Val Lys Leu Thr Pro Leu Cys Val Thr Leu 115 120 125Asn Cys Thr Asp Asp Val Arg Asn Val Thr Asn Asn Ala Thr Asn Thr 130 135 140Asn Ser Ser Trp Gly Glu Pro Met Glu Lys Gly Glu Ile Lys Asn Cys145 150 155 160Ser Phe Asn Ile Thr Thr Ser Ile Arg Asn Lys Val Gln Lys Gln Tyr 165 170 175Ala Leu Phe Tyr Lys Leu Asp Val Val Pro Ile Asp Asn Asp Ser Asn 180 185 190Asn Thr Asn Tyr Arg Leu Ile Ser Cys Asn Thr Ser Val Ile Thr Gln 195 200 205Ala Cys Pro Lys Val Ser Phe Glu Pro Ile Pro Ile His Tyr Cys Ala 210 215 220Pro Ala Gly Phe Ala Ile Leu Lys Cys Asn Asp Lys Lys Phe Asn Gly225 230 235 240Thr Gly Pro Cys Thr Asn Val Ser Thr Val Gln Cys Thr His Gly Ile 245 250 255Arg Pro Val Val Ser Thr Gln Leu Leu Leu Asn Gly Ser Leu Ala Glu 260 265 270Glu Glu Val Val Ile Arg Ser Glu Asn Phe Thr Asn Asn Ala Lys Thr 275 280 285Ile Met Val Gln Leu Asn Val Ser Val Glu Ile Asn Cys Thr Arg Pro 290 295 300Asn Asn Asn Thr Arg Lys Ser Ile His Ile Gly Pro Gly Arg Ala Phe305 310 315 320Tyr Thr Ala Gly Asp Ile Ile Gly Asp Ile Arg Gln Ala His Cys Asn 325 330 335Ile Ser Arg Ala Asn Trp Asn Asn Thr Leu Arg Gln Ile Val Glu Lys 340 345 350Leu Gly Lys Gln Phe Gly Asn Asn Lys Thr Ile Val Phe Asn His Ser 355 360 365Ser Gly Gly Asp Pro Glu Ile Val Met His Ser Phe Asn Cys Gly Gly 370 375 380Glu Phe Phe Tyr Cys Asn Ser Thr Lys Leu Phe Asn Ser Thr Trp Thr385 390 395 400Trp Asn Asn Ser Thr Trp Asn Asn Thr Lys Arg Ser Asn Asp Thr Glu 405 410 415Glu His Ile Thr Leu Pro Cys Arg Ile Lys Gln Ile Ile Asn Met Trp 420 425 430Gln Glu Val Gly Lys Ala Met Tyr Ala Pro Pro Ile Arg Gly Gln Ile 435 440 445Arg Cys Ser Ser Asn Ile Thr Gly Leu Leu Leu Thr Arg Asp Gly Gly 450 455 460Asn Asp Thr Ser Gly Thr Glu Ile Phe Arg Pro Gly Gly Gly Asp Met465 470 475 480Arg Asp Asn Trp Arg Ser Glu Leu Tyr Lys Tyr Lys Val Val Lys Ile 485 490 495Glu Pro Leu Gly Val Ala Pro Thr Lys Ala Lys Arg Arg Val Val Gln 500 505 510Ser Glu Lys Ser Ala Val Gly Ile Gly Ala Val Phe Leu Gly Phe Leu 515 520 525Gly Ala Ala Gly Ser Thr Met Gly Ala Ala Ser Met Thr Leu Thr Val 530 535 540Gln Ala Arg Leu Leu Leu Ser Gly Ile Val Gln Gln Gln Asn Asn Leu545 550 555 560Leu Arg Ala Ile Glu Ala Gln Gln His Leu Leu Gln Leu Thr Val Trp 565 570 575Gly Ile Lys Gln Leu Gln Ala Arg Val Leu Ala Val Glu Arg Tyr Leu 580 585 590Lys Asp Gln Gln Leu Leu Gly Ile Trp Gly Cys Ser Gly Lys Leu Ile 595 600 605Cys Thr Thr Thr Val Pro Trp Asn Ala Ser Trp Ser Asn Lys Ser Leu 610 615 620Asp Lys Ile Trp Asn Asn Met Thr Trp Met Glu Trp Glu Arg Glu Ile625 630 635 640Asn Asn Tyr Thr Ser Leu Ile Tyr Thr Leu Ile Glu Glu Ser Gln Asn 645 650 655Gln Gln Glu Lys Asn Glu Gln Glu Leu Leu Glu Leu Asp Lys Trp Ala 660 665 670Ser Leu Trp Asn Trp Phe Asp Ile Ser Asn Trp Leu Trp Gly Tyr Ile 675 680 685Pro Glu Ala Pro Arg Asp Gly Gln Ala Tyr Val Arg Lys Asp Gly Glu 690 695 700Trp Val Leu Leu Ser Thr Phe Leu705 7102724PRTArtificial SequenceSynthetic Construct (Optimized mosaic gp140 Env1) 2Met Arg Val Arg Gly Ile Gln Arg Asn Cys Gln His Leu Trp Arg Trp1 5 10 15Gly Thr Leu Ile Leu Gly Met Leu Met Ile Cys Ser Ala Ala Gly Lys 20 25 30Leu Trp Val Thr Val Tyr Tyr Gly Val Pro Val Trp Lys Glu Ala Thr 35 40 45Thr Thr Leu Phe Cys Ala Ser Asp Ala Lys Ala Tyr Asp Thr Glu Val 50 55 60His Asn Val Trp Ala Thr His Ala Cys Val Pro Thr Asp Pro Asn Pro65 70 75 80Gln Glu Val Val Leu Glu Asn Val Thr Glu Asn Phe Asn Met Trp Lys 85 90 95Asn Asn Met Val Glu Gln Met His Glu Asp Ile Ile Ser Leu Trp Asp 100 105 110Gln Ser Leu Lys Pro Cys Val Lys Leu Thr Pro Leu Cys Val Thr Leu 115 120 125Asn Cys Thr Asp Asp Val Arg Asn Val Thr Asn Asn Ala Thr Asn Thr 130 135 140Asn Ser Ser Trp Gly Glu Pro Met Glu Lys Gly Glu Ile Lys Asn Cys145 150 155 160Ser Phe Asn Ile Thr Thr Ser Ile Arg Asn Lys Val Gln Lys Gln Tyr 165 170 175Ala Leu Phe Tyr Lys Leu Asp Val Val Pro Ile Asp Asn Asp Ser Asn 180 185 190Asn Thr Asn Tyr Arg Leu Ile Ser Cys Asn Thr Ser Val Ile Thr Gln 195 200 205Ala Cys Pro Lys Val Ser Phe Glu Pro Ile Pro Ile His Tyr Cys Ala 210 215 220Pro Ala Gly Phe Ala Ile Leu Lys Cys Asn Asp Lys Lys Phe Asn Gly225 230 235 240Thr Gly Pro Cys Thr Asn Val Ser Thr Val Gln Cys Thr His Gly Ile 245 250 255Arg Pro Val Val Ser Thr Gln Leu Leu Leu Asn Gly Ser Leu Ala Glu 260 265 270Glu Glu Val Val Ile Arg Ser Glu Asn Phe Thr Asn Asn Ala Lys Thr 275 280 285Ile Met Val Gln Leu Asn Val Ser Val Glu Ile Asn Cys Thr Arg Pro 290 295 300Asn Asn Asn Thr Arg Lys Ser Ile His Ile Gly Pro Gly Arg Ala Phe305 310 315 320Tyr Thr Ala Gly Asp Ile Ile Gly Asp Ile Arg Gln Ala His Cys Asn 325 330 335Ile Ser Arg Ala Asn Trp Asn Asn Thr Leu Arg Gln Ile Val Glu Lys 340 345 350Leu Gly Lys Gln Phe Gly Asn Asn Lys Thr Ile Val Phe Asn His Ser 355 360 365Ser Gly Gly Asp Pro Glu Ile Val Met His Ser Phe Asn Cys Gly Gly 370 375 380Glu Phe Phe Tyr Cys Asn Ser Thr Lys Leu Phe Asn Ser Thr Trp Thr385 390 395 400Trp Asn Asn Ser Thr Trp Asn Asn Thr Lys Arg Ser Asn Asp Thr Glu 405 410 415Glu His Ile Thr Leu Pro Cys Arg Ile Lys Gln Ile Ile Asn Met Trp 420 425 430Gln Glu Val Gly Lys Ala Met Tyr Ala Pro Pro Ile Arg Gly Gln Ile 435 440 445Arg Cys Ser Ser Asn Ile Thr Gly Leu Leu Leu Thr Arg Asp Gly Gly 450 455 460Asn Asp Thr Ser Gly Thr Glu Ile Phe Arg Pro Gly Gly Gly Asp Met465 470 475 480Arg Asp Asn Trp Arg Ser Glu Leu Tyr Lys Tyr Lys Val Val Lys Ile 485 490 495Glu Pro Leu Gly Val Ala Pro Thr Lys Ala Lys Glu Arg Val Val Gln 500 505 510Arg Glu Glu Arg Ala Val Gly Ile Gly Ala Val Phe Leu Gly Phe Leu 515 520 525Gly Ala Ala Gly Ser Thr Met Gly Ala Ala Ser Met Thr Leu Thr Val 530 535 540Gln Ala Arg Leu Leu Leu Ser Gly Ile Val Gln Gln Gln Asn Asn Leu545 550 555 560Leu Arg Ala Ile Glu Ala Gln Gln His Leu Leu Gln Leu Thr Val Trp 565 570 575Gly Ile Lys Gln Leu Gln Ala Arg Val Leu Ala Val Glu Arg Tyr Leu 580 585 590Lys Asp Gln Gln Leu Leu Gly Ile Trp Gly Cys Ser Gly Lys Leu Ile 595 600 605Cys Thr Thr Thr Val Pro Trp Asn Ala Ser Trp Ser Asn Lys Ser Leu 610 615 620Asp Lys Ile Trp Asn Asn Met Thr Trp Met Glu Trp Glu Arg Glu Ile625 630 635 640Asn Asn Tyr Thr Ser Leu Ile Tyr Thr Leu Ile Glu Glu Ser Gln Asn 645 650 655Gln Gln Glu Lys Asn Glu Gln Glu Leu Leu Glu Leu Asp Lys Trp Ala 660 665 670Ser Leu Trp Asn Trp Phe Asp Ile Ser Asn Trp Leu Trp Tyr Ile Lys 675 680 685Ser Arg Ile Glu Gly Arg Gly Ser Gly Gly Tyr Ile Pro Glu Ala Pro 690 695 700Arg Asp Gly Gln Ala Tyr Val Arg Lys Asp Gly Glu Trp Val Leu Leu705 710 715 720Ser Thr Phe Leu3708PRTArtificial SequenceSynthetic Construct (Optimized clade C gp140 Env) 3Met Arg Val Arg Gly Ile Gln Arg Asn Cys Gln His Leu Trp Arg Trp1 5 10 15Gly Thr Leu Ile Leu Gly Met Leu Met Ile Cys Ser Ala Ala Glu Asn 20 25 30Leu Trp Val Gly Asn Met Trp Val Thr Val Tyr Tyr Gly Val Pro Val 35 40 45Trp Thr Asp Ala Lys Thr Thr Leu Phe Cys Ala Ser Asp Thr Lys Ala 50 55 60Tyr Asp Arg Glu Val His Asn Val Trp Ala Thr His Ala Cys Val Pro65 70 75 80Thr Asp Pro Asn Pro Gln Glu Ile Val Leu Glu Asn Val Thr Glu Asn 85 90 95Phe Asn Met Trp Lys Asn Asp Met Val Asp Gln Met His Glu Asp Ile 100 105 110Ile Ser Leu Trp Asp Gln Ser Leu Lys Pro Cys Val Lys Leu Thr Pro 115 120 125Leu Cys Val Thr Leu His Cys Thr Asn Ala Thr Phe Lys Asn Asn Val 130 135 140Thr Asn Asp Met Asn Lys Glu Ile Arg Asn Cys Ser Phe Asn Thr Thr145 150 155 160Thr Glu Ile Arg Asp Lys Lys Gln Gln Gly Tyr Ala Leu Phe Tyr Arg 165 170 175Pro Asp Ile Val Leu Leu Lys Glu Asn Arg Asn Asn Ser Asn Asn Ser 180 185 190Glu Tyr Ile Leu Ile Asn Cys Asn Ala Ser Thr Ile Thr Gln Ala Cys 195 200 205Pro Lys Val Asn Phe Asp Pro Ile Pro Ile His Tyr Cys Ala Pro Ala 210 215 220Gly Tyr Ala Ile Leu Lys Cys Asn Asn Lys Thr Phe Ser Gly Lys Gly225 230 235 240Pro Cys Asn Asn Val Ser Thr Val Gln Cys Thr His Gly Ile Lys Pro 245 250 255Val Val Ser Thr Gln Leu Leu Leu Asn Gly Ser Leu Ala Glu Lys Glu 260 265 270Ile Ile Ile Arg Ser Glu Asn Leu Thr Asp Asn Val Lys Thr Ile Ile 275 280 285Val His Leu Asn Lys Ser Val Glu Ile Val Cys Thr Arg Pro Asn Asn 290 295 300Asn Thr Arg Lys Ser Met Arg Ile Gly Pro Gly Gln Thr Phe Tyr Ala305 310 315 320Thr Gly Asp Ile Ile Gly Asp Ile Arg Gln Ala Tyr Cys Asn Ile Ser 325 330 335Gly Ser Lys Trp Asn Glu Thr Leu Lys Arg Val Lys Glu Lys Leu Gln 340 345 350Glu Asn Tyr Asn Asn Asn Lys Thr Ile Lys Phe Ala Pro Ser Ser Gly 355 360 365Gly Asp Leu Glu Ile Thr Thr His Ser Phe Asn Cys Arg Gly Glu Phe 370 375 380Phe Tyr Cys Asn Thr Thr Arg Leu Phe Asn Asn Asn Ala Thr Glu Asp385 390 395 400Glu Thr Ile Thr Leu Pro Cys Arg Ile Lys Gln Ile Ile Asn Met Trp 405 410 415Gln Gly Val Gly Arg Ala Met Tyr Ala Pro Pro Ile Ala Gly Asn Ile 420 425 430Thr Cys Lys Ser Asn Ile Thr Gly Leu Leu Leu Val Arg Asp Gly Gly 435 440 445Glu Asp Asn Lys Thr Glu Glu Ile Phe Arg Pro Gly Gly Gly Asn Met 450 455 460Lys Asp Asn Trp Arg Ser Glu Leu Tyr Lys Tyr Lys Val Ile Glu Leu465 470 475 480Lys Pro Leu Gly Ile Ala Pro Thr Gly Ala Lys Glu Arg Val Val Glu 485 490 495Arg Glu Glu Arg Ala Val Gly Ile Gly Ala Val Phe Leu Gly Phe Leu 500 505 510Gly Ala Ala Gly Ser Thr Met Gly Ala Ala Ser Leu Thr Leu Thr Val 515 520 525Gln Ala Arg Gln Leu Leu Ser Ser Ile Val Gln Gln Gln Ser Asn Leu 530 535 540Leu Arg Ala Ile Glu Ala Gln Gln His Met Leu Gln Leu Thr Val Trp545 550 555 560Gly Ile Lys Gln Leu Gln Thr Arg Val Leu Ala Ile Glu Arg Tyr Leu 565 570 575Lys Asp Gln Gln Leu Leu Gly Ile Trp Gly Cys Ser Gly Lys Leu Ile 580 585 590Cys Thr Thr Asn Val Pro Trp Asn Ser Ser Trp Ser Asn Lys Ser Gln 595 600 605Thr Asp Ile Trp Asn Asn Met Thr Trp Met Glu Trp Asp Arg Glu Ile 610 615 620Ser Asn Tyr Thr Asp Thr Ile Tyr Arg Leu Leu Glu Asp Ser Gln Thr625 630 635 640Gln Gln Glu Lys Asn Glu Lys Asp Leu Leu Ala Leu Asp Ser Trp Lys 645 650 655Asn Leu Trp Ser Trp Phe Asp Ile Ser Asn Trp Leu Trp Tyr Ile Lys 660 665 670Ser Arg Ile Glu Gly Arg Gly Ser Gly Gly Tyr Ile Pro Glu Ala Pro 675 680 685Arg Asp Gly Gln Ala Tyr Val Arg Lys Asp Gly Glu Trp Val Leu Leu 690 695 700Ser Thr Phe Leu7054684PRTArtificial SequenceSynthetic Construct (Mosaic gp140 Env2) 4Met Arg Val Arg Gly Ile Gln Arg Asn Trp Pro Gln Trp Trp Ile Trp1 5 10 15Gly Ile Leu Gly Phe Trp Met Ile Ile Ile Cys Arg Val Met Gly Asn 20 25 30Leu Trp Val Thr Val Tyr Tyr Gly Val Pro Val Trp Lys Glu Ala Lys 35 40 45Thr Thr Leu Phe Cys Ala Ser Asp Ala Lys Ala Tyr Glu Lys Glu Val 50 55 60His Asn Val Trp Ala Thr His Ala Cys Val Pro Thr Asp Pro Asn Pro65 70 75 80Gln Glu Met Val Leu Glu Asn Val Thr Glu Asn Phe Asn Met Trp Lys 85 90 95Asn Asp Met Val Asp Gln Met His Glu Asp Ile Ile Arg Leu Trp Asp 100 105 110Gln Ser Leu Lys Pro Cys Val Lys Leu Thr Pro Leu Cys Val Thr Leu 115 120 125Glu Cys Arg Asn Val Arg Asn Val Ser Ser Asn Gly Thr Tyr Asn Ile 130 135 140Ile His Asn Glu Thr Tyr Lys Glu Met Lys Asn Cys Ser Phe Asn Ala145 150 155 160Thr Thr Val Val Glu Asp Arg Lys Gln Lys Val His Ala Leu Phe Tyr 165 170 175Arg Leu Asp Ile Val Pro Leu Asp Glu Asn Asn Ser Ser Glu Lys Ser 180 185 190Ser Glu Asn Ser Ser Glu Tyr Tyr Arg Leu Ile Asn Cys Asn Thr Ser 195 200 205Ala Ile Thr Gln Ala Cys Pro Lys Val Ser Phe Asp Pro Ile Pro Ile 210 215 220His Tyr Cys Ala Pro Ala Gly Tyr Ala Ile Leu Lys Cys Asn Asn Lys225 230 235 240Thr Phe Asn Gly Thr Gly Pro Cys Asn Asn Val Ser Thr Val Gln Cys 245 250 255Thr His Gly Ile Lys Pro Val Val Ser Thr Gln Leu Leu Leu Asn Gly 260 265 270Ser Leu Ala Glu Glu Glu Ile Ile Ile Arg Ser Glu Asn Leu Thr Asn 275 280 285Asn Ala Lys Thr Ile Ile Val His Leu Asn Glu Thr Val Asn Ile Thr 290

295 300Cys Thr Arg Pro Asn Asn Asn Thr Arg Lys Ser Ile Arg Ile Gly Pro305 310 315 320Gly Gln Thr Phe Tyr Ala Thr Gly Asp Ile Ile Gly Asp Ile Arg Gln 325 330 335Ala His Cys Asn Leu Ser Arg Asp Gly Trp Asn Lys Thr Leu Gln Gly 340 345 350Val Lys Lys Lys Leu Ala Glu His Phe Pro Asn Lys Thr Ile Asn Phe 355 360 365Thr Ser Ser Ser Gly Gly Asp Leu Glu Ile Thr Thr His Ser Phe Asn 370 375 380Cys Arg Gly Glu Phe Phe Tyr Cys Asn Thr Ser Gly Leu Phe Asn Gly385 390 395 400Thr Tyr Met Pro Asn Gly Thr Asn Ser Asn Ser Ser Ser Asn Ile Thr 405 410 415Leu Pro Cys Arg Ile Lys Gln Ile Ile Asn Met Trp Gln Glu Val Gly 420 425 430Arg Ala Met Tyr Ala Pro Pro Ile Ala Gly Asn Ile Thr Cys Arg Ser 435 440 445Asn Ile Thr Gly Leu Leu Leu Thr Arg Asp Gly Gly Ser Asn Asn Gly 450 455 460Val Pro Asn Asp Thr Glu Thr Phe Arg Pro Gly Gly Gly Asp Met Arg465 470 475 480Asn Asn Trp Arg Ser Glu Leu Tyr Lys Tyr Lys Val Val Glu Val Lys 485 490 495Pro Leu Gly Val Ala Pro Thr Glu Ala Lys Arg Arg Val Val Glu Ser 500 505 510Glu Lys Ser Ala Val Gly Ile Gly Ala Val Phe Leu Gly Ile Leu Gly 515 520 525Ala Ala Gly Ser Thr Met Gly Ala Ala Ser Ile Thr Leu Thr Val Gln 530 535 540Ala Arg Gln Leu Leu Ser Gly Ile Val Gln Gln Gln Ser Asn Leu Leu545 550 555 560Arg Ala Ile Glu Ala Gln Gln His Met Leu Gln Leu Thr Val Trp Gly 565 570 575Ile Lys Gln Leu Gln Thr Arg Val Leu Ala Ile Glu Arg Tyr Leu Gln 580 585 590Asp Gln Gln Leu Leu Gly Leu Trp Gly Cys Ser Gly Lys Leu Ile Cys 595 600 605Thr Thr Ala Val Pro Trp Asn Thr Ser Trp Ser Asn Lys Ser Gln Thr 610 615 620Asp Ile Trp Asp Asn Met Thr Trp Met Gln Trp Asp Lys Glu Ile Gly625 630 635 640Asn Tyr Thr Gly Glu Ile Tyr Arg Leu Leu Glu Glu Ser Gln Asn Gln 645 650 655Gln Glu Lys Asn Glu Lys Asp Leu Leu Ala Leu Asp Ser Trp Lys Asn 660 665 670Leu Trp Asn Trp Phe Asp Ile Thr Asn Trp Leu Trp 675 6805678PRTArtificial SequenceSynthetic Construct (Mos3 gp140 Env) 5Met Arg Val Lys Gly Ile Arg Lys Asn Tyr Gln His Leu Trp Lys Trp1 5 10 15Gly Thr Met Leu Leu Gly Met Leu Met Ile Cys Ser Ala Ala Glu Gln 20 25 30Leu Trp Val Thr Val Tyr Tyr Gly Val Pro Val Trp Arg Asp Ala Glu 35 40 45Thr Thr Leu Phe Cys Ala Ser Asp Ala Lys Ala Tyr Glu Arg Glu Val 50 55 60His Asn Ile Trp Ala Thr His Ala Cys Val Pro Thr Asp Pro Asn Pro65 70 75 80Gln Glu Ile Val Leu Glu Asn Val Thr Glu Glu Phe Asn Met Trp Lys 85 90 95Asn Asp Met Val Glu Gln Met His Thr Asp Ile Ile Ser Leu Trp Asp 100 105 110Glu Ser Leu Lys Pro Cys Val Lys Leu Ala Pro Leu Cys Val Thr Leu 115 120 125Asn Cys Thr Asn Ala Asn Leu Asn Cys Thr Asn Asp Asn Cys Asn Arg 130 135 140Thr Val Asp Lys Met Arg Glu Glu Ile Lys Asn Cys Ser Phe Asn Met145 150 155 160Thr Thr Glu Leu Arg Asp Lys Lys Gln Lys Val Tyr Ala Leu Phe Tyr 165 170 175Lys Leu Asp Ile Val Pro Ile Glu Lys Asn Ser Ser Glu Tyr Arg Leu 180 185 190Ile Asn Cys Asn Thr Ser Thr Ile Thr Gln Ala Cys Pro Lys Val Thr 195 200 205Phe Glu Pro Ile Pro Ile His Tyr Cys Thr Pro Ala Gly Phe Ala Ile 210 215 220Leu Lys Cys Lys Asp Lys Lys Phe Asn Gly Thr Gly Pro Cys Lys Asn225 230 235 240Val Ser Thr Val Gln Cys Thr His Gly Ile Lys Pro Val Ile Ser Thr 245 250 255Gln Leu Leu Leu Asn Gly Ser Leu Ala Glu Gly Glu Ile Ile Ile Arg 260 265 270Ser Glu Asn Ile Thr Asn Asn Ala Lys Thr Ile Ile Val Gln Leu Asn 275 280 285Glu Ser Val Val Ile Asn Cys Thr Arg Pro Gly Asn Asn Thr Arg Lys 290 295 300Ser Val Arg Ile Gly Pro Gly Gln Ala Phe Tyr Ala Thr Gly Glu Ile305 310 315 320Ile Gly Asp Ile Arg Gln Ala Tyr Cys Asn Ile Ser Arg Ala Lys Trp 325 330 335Asn Asn Thr Leu Lys Gln Ile Val Thr Lys Leu Lys Glu Gln Phe Lys 340 345 350Asn Lys Thr Ile Val Phe Asn Gln Ser Ser Gly Gly Asp Pro Glu Ile 355 360 365Thr Thr His Ser Phe Asn Cys Gly Gly Glu Phe Phe Tyr Cys Asn Thr 370 375 380Thr Gln Leu Phe Asn Ser Thr Trp Asn Ser Asn Ser Thr Trp Asn Asp385 390 395 400Thr Thr Gly Ser Val Thr Glu Gly Asn Asp Thr Ile Thr Leu Pro Cys 405 410 415Arg Ile Lys Gln Ile Val Asn Met Trp Gln Arg Val Gly Gln Ala Met 420 425 430Tyr Ala Pro Pro Ile Glu Gly Asn Ile Thr Cys Lys Ser Asn Ile Thr 435 440 445Gly Leu Leu Leu Val Arg Asp Gly Gly Asn Ile Asn Arg Thr Asn Glu 450 455 460Thr Phe Arg Pro Gly Gly Gly Asn Met Lys Asp Asn Trp Arg Ser Glu465 470 475 480Leu Tyr Lys Tyr Lys Val Val Glu Ile Lys Pro Leu Gly Val Ala Pro 485 490 495Thr Arg Ala Lys Arg Arg Val Val Glu Ser Glu Lys Ser Ala Val Gly 500 505 510Leu Gly Ala Val Phe Leu Gly Phe Leu Gly Thr Ala Gly Ser Thr Met 515 520 525Gly Ala Ala Ser Leu Thr Leu Thr Val Gln Ala Arg Gln Val Leu Ser 530 535 540Gly Ile Val Gln Gln Gln Ser Asn Leu Leu Lys Ala Ile Glu Ala Gln545 550 555 560Gln His Leu Leu Lys Leu Thr Val Trp Gly Ile Lys Gln Leu Gln Ala 565 570 575Arg Ile Leu Ala Val Glu Arg Tyr Leu Arg Asp Gln Gln Leu Leu Gly 580 585 590Ile Trp Gly Cys Ser Gly Lys Leu Ile Cys Thr Thr Asn Val Pro Trp 595 600 605Asn Ser Ser Trp Ser Asn Lys Ser Gln Glu Glu Ile Trp Asn Asn Met 610 615 620Thr Trp Met Gln Trp Asp Arg Glu Ile Ser Asn Tyr Thr Asp Thr Ile625 630 635 640Tyr Arg Leu Leu Glu Asp Ser Gln Asn Gln Gln Glu Lys Asn Glu Gln 645 650 655Asp Leu Leu Ala Leu Asp Lys Trp Ala Ser Leu Trp Asn Trp Phe Ser 660 665 670Ile Thr Asn Trp Leu Trp 6756685PRTArtificial SequenceSynthetic Construct (Mosaic gp140 Env1) 6Met Arg Val Thr Gly Ile Arg Lys Asn Tyr Gln His Leu Trp Arg Trp1 5 10 15Gly Thr Met Leu Leu Gly Ile Leu Met Ile Cys Ser Ala Ala Gly Lys 20 25 30Leu Trp Val Thr Val Tyr Tyr Gly Val Pro Val Trp Lys Glu Ala Thr 35 40 45Thr Thr Leu Phe Cys Ala Ser Asp Ala Lys Ala Tyr Asp Thr Glu Val 50 55 60His Asn Val Trp Ala Thr His Ala Cys Val Pro Thr Asp Pro Asn Pro65 70 75 80Gln Glu Val Val Leu Glu Asn Val Thr Glu Asn Phe Asn Met Trp Lys 85 90 95Asn Asn Met Val Glu Gln Met His Glu Asp Ile Ile Ser Leu Trp Asp 100 105 110Gln Ser Leu Lys Pro Cys Val Lys Leu Thr Pro Leu Cys Val Thr Leu 115 120 125Asn Cys Thr Asp Asp Val Arg Asn Val Thr Asn Asn Ala Thr Asn Thr 130 135 140Asn Ser Ser Trp Gly Glu Pro Met Glu Lys Gly Glu Ile Lys Asn Cys145 150 155 160Ser Phe Asn Ile Thr Thr Ser Ile Arg Asn Lys Val Gln Lys Gln Tyr 165 170 175Ala Leu Phe Tyr Lys Leu Asp Val Val Pro Ile Asp Asn Asp Ser Asn 180 185 190Asn Thr Asn Tyr Arg Leu Ile Ser Cys Asn Thr Ser Val Ile Thr Gln 195 200 205Ala Cys Pro Lys Val Ser Phe Glu Pro Ile Pro Ile His Tyr Cys Ala 210 215 220Pro Ala Gly Phe Ala Ile Leu Lys Cys Asn Asp Lys Lys Phe Asn Gly225 230 235 240Thr Gly Pro Cys Thr Asn Val Ser Thr Val Gln Cys Thr His Gly Ile 245 250 255Arg Pro Val Val Ser Thr Gln Leu Leu Leu Asn Gly Ser Leu Ala Glu 260 265 270Glu Glu Val Val Ile Arg Ser Glu Asn Phe Thr Asn Asn Ala Lys Thr 275 280 285Ile Met Val Gln Leu Asn Val Ser Val Glu Ile Asn Cys Thr Arg Pro 290 295 300Asn Asn Asn Thr Arg Lys Ser Ile His Ile Gly Pro Gly Arg Ala Phe305 310 315 320Tyr Thr Ala Gly Asp Ile Ile Gly Asp Ile Arg Gln Ala His Cys Asn 325 330 335Ile Ser Arg Ala Asn Trp Asn Asn Thr Leu Arg Gln Ile Val Glu Lys 340 345 350Leu Gly Lys Gln Phe Gly Asn Asn Lys Thr Ile Val Phe Asn His Ser 355 360 365Ser Gly Gly Asp Pro Glu Ile Val Met His Ser Phe Asn Cys Gly Gly 370 375 380Glu Phe Phe Tyr Cys Asn Ser Thr Lys Leu Phe Asn Ser Thr Trp Thr385 390 395 400Trp Asn Asn Ser Thr Trp Asn Asn Thr Lys Arg Ser Asn Asp Thr Glu 405 410 415Glu His Ile Thr Leu Pro Cys Arg Ile Lys Gln Ile Ile Asn Met Trp 420 425 430Gln Glu Val Gly Lys Ala Met Tyr Ala Pro Pro Ile Arg Gly Gln Ile 435 440 445Arg Cys Ser Ser Asn Ile Thr Gly Leu Leu Leu Thr Arg Asp Gly Gly 450 455 460Asn Asp Thr Ser Gly Thr Glu Ile Phe Arg Pro Gly Gly Gly Asp Met465 470 475 480Arg Asp Asn Trp Arg Ser Glu Leu Tyr Lys Tyr Lys Val Val Lys Ile 485 490 495Glu Pro Leu Gly Val Ala Pro Thr Lys Ala Lys Arg Arg Val Val Gln 500 505 510Ser Glu Lys Ser Ala Val Gly Ile Gly Ala Val Phe Leu Gly Phe Leu 515 520 525Gly Ala Ala Gly Ser Thr Met Gly Ala Ala Ser Met Thr Leu Thr Val 530 535 540Gln Ala Arg Leu Leu Leu Ser Gly Ile Val Gln Gln Gln Asn Asn Leu545 550 555 560Leu Arg Ala Ile Glu Ala Gln Gln His Leu Leu Gln Leu Thr Val Trp 565 570 575Gly Ile Lys Gln Leu Gln Ala Arg Val Leu Ala Val Glu Arg Tyr Leu 580 585 590Lys Asp Gln Gln Leu Leu Gly Ile Trp Gly Cys Ser Gly Lys Leu Ile 595 600 605Cys Thr Thr Thr Val Pro Trp Asn Ala Ser Trp Ser Asn Lys Ser Leu 610 615 620Asp Lys Ile Trp Asn Asn Met Thr Trp Met Glu Trp Glu Arg Glu Ile625 630 635 640Asn Asn Tyr Thr Ser Leu Ile Tyr Thr Leu Ile Glu Glu Ser Gln Asn 645 650 655Gln Gln Glu Lys Asn Glu Gln Glu Leu Leu Glu Leu Asp Lys Trp Ala 660 665 670Ser Leu Trp Asn Trp Phe Asp Ile Ser Asn Trp Leu Trp 675 680 68571350PRTArtificial SequenceSynthetic Construct (Mosaic gagpol1 v3) 7Met Gly Ala Arg Ala Ser Val Leu Ser Gly Gly Glu Leu Asp Arg Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys Lys Tyr Arg Leu Lys 20 25 30His Ile Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Val Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Arg Gln Ile Leu Gly Gln Leu 50 55 60Gln Pro Ser Leu Gln Thr Gly Ser Glu Glu Leu Arg Ser Leu Tyr Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Gln Arg Ile Glu Ile Lys Asp 85 90 95Thr Lys Glu Ala Leu Glu Lys Ile Glu Glu Glu Gln Asn Lys Ser Lys 100 105 110Lys Lys Ala Gln Gln Ala Ala Ala Asp Thr Gly Asn Ser Ser Gln Val 115 120 125Ser Gln Asn Tyr Pro Ile Val Gln Asn Ile Gln Gly Gln Met Val His 130 135 140Gln Ala Ile Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Val Glu145 150 155 160Glu Lys Ala Phe Ser Pro Glu Val Ile Pro Met Phe Ser Ala Leu Ser 165 170 175Glu Gly Ala Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly 180 185 190Gly His Gln Ala Ala Met Gln Met Leu Lys Glu Thr Ile Asn Glu Glu 195 200 205Ala Ala Glu Trp Asp Arg Val His Pro Val His Ala Gly Pro Ile Ala 210 215 220Pro Gly Gln Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr225 230 235 240Ser Thr Leu Gln Glu Gln Ile Gly Trp Met Thr Asn Asn Pro Pro Ile 245 250 255Pro Val Gly Glu Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys 260 265 270Ile Val Arg Met Tyr Ser Pro Val Ser Ile Leu Asp Ile Arg Gln Gly 275 280 285Pro Lys Glu Pro Phe Arg Asp Tyr Val Asp Arg Phe Tyr Lys Thr Leu 290 295 300Arg Ala Glu Gln Ala Ser Gln Asp Val Lys Asn Trp Met Thr Glu Thr305 310 315 320Leu Leu Val Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Lys Ala 325 330 335Leu Gly Pro Ala Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly 340 345 350Val Gly Gly Pro Gly His Lys Ala Arg Val Leu Ala Glu Ala Met Ser 355 360 365Gln Val Thr Asn Ser Ala Thr Ile Met Met Gln Arg Gly Asn Phe Arg 370 375 380Asn Gln Arg Lys Thr Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His385 390 395 400Ile Ala Lys Asn Cys Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys 405 410 415Gly Lys Glu Gly His Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn 420 425 430Phe Leu Gly Lys Ile Trp Pro Ser Asn Lys Gly Arg Pro Gly Asn Phe 435 440 445Leu Gln Asn Arg Pro Glu Pro Thr Ala Pro Pro Glu Glu Ser Phe Arg 450 455 460Phe Gly Glu Glu Thr Thr Thr Pro Ser Gln Lys Gln Glu Pro Ile Asp465 470 475 480Lys Glu Met Tyr Pro Leu Ala Ser Leu Lys Ser Leu Phe Gly Asn Asp 485 490 495Pro Ser Ser Gln Met Ala Pro Ile Ser Pro Ile Glu Thr Val Pro Val 500 505 510Lys Leu Lys Pro Gly Met Asp Gly Pro Arg Val Lys Gln Trp Pro Leu 515 520 525Thr Glu Glu Lys Ile Lys Ala Leu Thr Ala Ile Cys Glu Glu Met Glu 530 535 540Lys Glu Gly Lys Ile Thr Lys Ile Gly Pro Glu Asn Pro Tyr Asn Thr545 550 555 560Pro Val Phe Ala Ile Lys Lys Lys Asp Ser Thr Lys Trp Arg Lys Leu 565 570 575Val Asp Phe Arg Glu Leu Asn Lys Arg Thr Gln Asp Phe Trp Glu Val 580 585 590Gln Leu Gly Ile Pro His Pro Ala Gly Leu Lys Lys Lys Lys Ser Val 595 600 605Thr Val Leu Ala Val Gly Asp Ala Tyr Phe Ser Val Pro Leu Asp Glu 610 615 620Gly Phe Arg Lys Tyr Thr Ala Phe Thr Ile Pro Ser Thr Asn Asn Glu625 630 635 640Thr Pro Gly Ile Arg Tyr Gln Tyr Asn Val Leu Pro Gln Gly Trp Lys 645 650 655Gly Ser Pro Ala Ile Phe Gln Cys Ser Met Thr Arg Ile Leu Glu Pro 660 665 670Phe Arg Ala Lys Asn Pro Glu Ile Val Ile Tyr Gln Tyr Met Ala Ala 675 680 685Leu Tyr Val Gly Ser Asp Leu Glu Ile

Gly Gln His Arg Ala Lys Ile 690 695 700Glu Glu Leu Arg Glu His Leu Leu Lys Trp Gly Phe Thr Thr Pro Asp705 710 715 720Lys Lys His Gln Lys Glu Pro Pro Phe Leu Trp Met Gly Tyr Glu Leu 725 730 735His Pro Asp Lys Trp Thr Val Gln Pro Ile Gln Leu Pro Glu Lys Asp 740 745 750Ser Trp Thr Val Asn Asp Ile Gln Lys Leu Val Gly Lys Leu Asn Trp 755 760 765Ala Ser Gln Ile Tyr Pro Gly Ile Lys Val Arg Gln Leu Cys Lys Leu 770 775 780Leu Arg Gly Ala Lys Ala Leu Thr Asp Ile Val Pro Leu Thr Glu Glu785 790 795 800Ala Glu Leu Glu Leu Ala Glu Asn Arg Glu Ile Leu Lys Glu Pro Val 805 810 815His Gly Val Tyr Tyr Asp Pro Ser Lys Asp Leu Ile Ala Glu Ile Gln 820 825 830Lys Gln Gly His Asp Gln Trp Thr Tyr Gln Ile Tyr Gln Glu Pro Phe 835 840 845Lys Asn Leu Lys Thr Gly Lys Tyr Ala Lys Met Arg Thr Ala His Thr 850 855 860Asn Asp Val Lys Gln Leu Thr Glu Ala Val Gln Lys Ile Ala Met Glu865 870 875 880Ser Ile Val Ile Trp Gly Lys Thr Pro Lys Phe Arg Leu Pro Ile Gln 885 890 895Lys Glu Thr Trp Glu Thr Trp Trp Thr Asp Tyr Trp Gln Ala Thr Trp 900 905 910Ile Pro Glu Trp Glu Phe Val Asn Thr Pro Pro Leu Val Lys Leu Trp 915 920 925Tyr Gln Leu Glu Lys Asp Pro Ile Ala Gly Val Glu Thr Phe Tyr Val 930 935 940Ala Gly Ala Ala Asn Arg Glu Thr Lys Leu Gly Lys Ala Gly Tyr Val945 950 955 960Thr Asp Arg Gly Arg Gln Lys Ile Val Ser Leu Thr Glu Thr Thr Asn 965 970 975Gln Lys Thr Ala Leu Gln Ala Ile Tyr Leu Ala Leu Gln Asp Ser Gly 980 985 990Ser Glu Val Asn Ile Val Thr Ala Ser Gln Tyr Ala Leu Gly Ile Ile 995 1000 1005Gln Ala Gln Pro Asp Lys Ser Glu Ser Glu Leu Val Asn Gln Ile 1010 1015 1020Ile Glu Gln Leu Ile Lys Lys Glu Arg Val Tyr Leu Ser Trp Val 1025 1030 1035Pro Ala His Lys Gly Ile Gly Gly Asn Glu Gln Val Asp Lys Leu 1040 1045 1050Val Ser Ser Gly Ile Arg Lys Val Leu Phe Leu Asp Gly Ile Asp 1055 1060 1065Lys Ala Gln Glu Glu His Glu Lys Tyr His Ser Asn Trp Arg Ala 1070 1075 1080Met Ala Ser Asp Phe Asn Leu Pro Pro Val Val Ala Lys Glu Ile 1085 1090 1095Val Ala Ser Cys Asp Gln Cys Gln Leu Lys Gly Glu Ala Met His 1100 1105 1110Gly Gln Val Asp Cys Ser Pro Gly Ile Trp Gln Leu Ala Cys Thr 1115 1120 1125His Leu Glu Gly Lys Ile Ile Leu Val Ala Val His Val Ala Ser 1130 1135 1140Gly Tyr Ile Glu Ala Glu Val Ile Pro Ala Glu Thr Gly Gln Glu 1145 1150 1155Thr Ala Tyr Phe Ile Leu Lys Leu Ala Gly Arg Trp Pro Val Lys 1160 1165 1170Val Ile His Thr Ala Asn Gly Ser Asn Phe Thr Ser Ala Ala Val 1175 1180 1185Lys Ala Ala Cys Trp Trp Ala Gly Ile Gln Gln Glu Phe Gly Ile 1190 1195 1200Pro Tyr Asn Pro Gln Ser Gln Gly Val Val Ala Ser Met Asn Lys 1205 1210 1215Glu Leu Lys Lys Ile Ile Gly Gln Val Arg Asp Gln Ala Glu His 1220 1225 1230Leu Lys Thr Ala Val Gln Met Ala Val Phe Ile His Asn Phe Lys 1235 1240 1245Arg Lys Gly Gly Ile Gly Gly Tyr Ser Ala Gly Glu Arg Ile Ile 1250 1255 1260Asp Ile Ile Ala Thr Asp Ile Gln Thr Lys Glu Leu Gln Lys Gln 1265 1270 1275Ile Ile Lys Ile Gln Asn Phe Arg Val Tyr Tyr Arg Asp Ser Arg 1280 1285 1290Asp Pro Ile Trp Lys Gly Pro Ala Lys Leu Leu Trp Lys Gly Glu 1295 1300 1305Gly Ala Val Val Ile Gln Asp Asn Ser Asp Ile Lys Val Val Pro 1310 1315 1320Arg Arg Lys Val Lys Ile Ile Lys Asp Tyr Gly Lys Gln Met Ala 1325 1330 1335Gly Ala Asp Cys Val Ala Gly Arg Gln Asp Glu Asp 1340 1345 13508857PRTArtificial SequenceSynthetic Construct (Mosaic gp160 Env1) 8Met Arg Val Thr Gly Ile Arg Lys Asn Tyr Gln His Leu Trp Arg Trp1 5 10 15Gly Thr Met Leu Leu Gly Ile Leu Met Ile Cys Ser Ala Ala Gly Lys 20 25 30Leu Trp Val Thr Val Tyr Tyr Gly Val Pro Val Trp Lys Glu Ala Thr 35 40 45Thr Thr Leu Phe Cys Ala Ser Asp Ala Lys Ala Tyr Asp Thr Glu Val 50 55 60His Asn Val Trp Ala Thr His Ala Cys Val Pro Thr Asp Pro Asn Pro65 70 75 80Gln Glu Val Val Leu Glu Asn Val Thr Glu Asn Phe Asn Met Trp Lys 85 90 95Asn Asn Met Val Glu Gln Met His Glu Asp Ile Ile Ser Leu Trp Asp 100 105 110Gln Ser Leu Lys Pro Cys Val Lys Leu Thr Pro Leu Cys Val Thr Leu 115 120 125Asn Cys Thr Asp Asp Val Arg Asn Val Thr Asn Asn Ala Thr Asn Thr 130 135 140Asn Ser Ser Trp Gly Glu Pro Met Glu Lys Gly Glu Ile Lys Asn Cys145 150 155 160Ser Phe Asn Ile Thr Thr Ser Ile Arg Asn Lys Val Gln Lys Gln Tyr 165 170 175Ala Leu Phe Tyr Lys Leu Asp Val Val Pro Ile Asp Asn Asp Ser Asn 180 185 190Asn Thr Asn Tyr Arg Leu Ile Ser Cys Asn Thr Ser Val Ile Thr Gln 195 200 205Ala Cys Pro Lys Val Ser Phe Glu Pro Ile Pro Ile His Tyr Cys Ala 210 215 220Pro Ala Gly Phe Ala Ile Leu Lys Cys Asn Asp Lys Lys Phe Asn Gly225 230 235 240Thr Gly Pro Cys Thr Asn Val Ser Thr Val Gln Cys Thr His Gly Ile 245 250 255Arg Pro Val Val Ser Thr Gln Leu Leu Leu Asn Gly Ser Leu Ala Glu 260 265 270Glu Glu Val Val Ile Arg Ser Glu Asn Phe Thr Asn Asn Ala Lys Thr 275 280 285Ile Met Val Gln Leu Asn Val Ser Val Glu Ile Asn Cys Thr Arg Pro 290 295 300Asn Asn Asn Thr Arg Lys Ser Ile His Ile Gly Pro Gly Arg Ala Phe305 310 315 320Tyr Thr Ala Gly Asp Ile Ile Gly Asp Ile Arg Gln Ala His Cys Asn 325 330 335Ile Ser Arg Ala Asn Trp Asn Asn Thr Leu Arg Gln Ile Val Glu Lys 340 345 350Leu Gly Lys Gln Phe Gly Asn Asn Lys Thr Ile Val Phe Asn His Ser 355 360 365Ser Gly Gly Asp Pro Glu Ile Val Met His Ser Phe Asn Cys Gly Gly 370 375 380Glu Phe Phe Tyr Cys Asn Ser Thr Lys Leu Phe Asn Ser Thr Trp Thr385 390 395 400Trp Asn Asn Ser Thr Trp Asn Asn Thr Lys Arg Ser Asn Asp Thr Glu 405 410 415Glu His Ile Thr Leu Pro Cys Arg Ile Lys Gln Ile Ile Asn Met Trp 420 425 430Gln Glu Val Gly Lys Ala Met Tyr Ala Pro Pro Ile Arg Gly Gln Ile 435 440 445Arg Cys Ser Ser Asn Ile Thr Gly Leu Leu Leu Thr Arg Asp Gly Gly 450 455 460Asn Asp Thr Ser Gly Thr Glu Ile Phe Arg Pro Gly Gly Gly Asp Met465 470 475 480Arg Asp Asn Trp Arg Ser Glu Leu Tyr Lys Tyr Lys Val Val Lys Ile 485 490 495Glu Pro Leu Gly Val Ala Pro Thr Lys Ala Lys Arg Arg Val Val Gln 500 505 510Arg Glu Lys Arg Ala Val Gly Ile Gly Ala Val Phe Leu Gly Phe Leu 515 520 525Gly Ala Ala Gly Ser Thr Met Gly Ala Ala Ser Met Thr Leu Thr Val 530 535 540Gln Ala Arg Leu Leu Leu Ser Gly Ile Val Gln Gln Gln Asn Asn Leu545 550 555 560Leu Arg Ala Ile Glu Ala Gln Gln His Leu Leu Gln Leu Thr Val Trp 565 570 575Gly Ile Lys Gln Leu Gln Ala Arg Val Leu Ala Val Glu Arg Tyr Leu 580 585 590Lys Asp Gln Gln Leu Leu Gly Ile Trp Gly Cys Ser Gly Lys Leu Ile 595 600 605Cys Thr Thr Thr Val Pro Trp Asn Ala Ser Trp Ser Asn Lys Ser Leu 610 615 620Asp Lys Ile Trp Asn Asn Met Thr Trp Met Glu Trp Glu Arg Glu Ile625 630 635 640Asn Asn Tyr Thr Ser Leu Ile Tyr Thr Leu Ile Glu Glu Ser Gln Asn 645 650 655Gln Gln Glu Lys Asn Glu Gln Glu Leu Leu Glu Leu Asp Lys Trp Ala 660 665 670Ser Leu Trp Asn Trp Phe Asp Ile Ser Asn Trp Leu Trp Tyr Ile Lys 675 680 685Ile Phe Ile Met Ile Val Gly Gly Leu Val Gly Leu Arg Ile Val Phe 690 695 700Ala Val Leu Ser Ile Val Asn Arg Val Arg Gln Gly Tyr Ser Pro Leu705 710 715 720Ser Phe Gln Thr Arg Leu Pro Ala Pro Arg Gly Pro Asp Arg Pro Glu 725 730 735Gly Ile Glu Glu Glu Gly Gly Glu Arg Asp Arg Asp Arg Ser Val Arg 740 745 750Leu Val Asp Gly Phe Leu Val Leu Ile Trp Asp Asp Leu Gln Ser Leu 755 760 765Cys Leu Phe Ser Tyr His Arg Leu Arg Asp Leu Leu Leu Ile Val Glu 770 775 780Leu Leu Gly Arg Arg Gly Trp Glu Ala Leu Lys Tyr Trp Trp Asn Leu785 790 795 800Leu Gln Tyr Trp Ser Gln Glu Leu Lys Asn Ser Ala Ile Ser Leu Leu 805 810 815Asn Ala Thr Ala Val Ala Val Ala Glu Gly Thr Asp Arg Val Ile Glu 820 825 830Ala Leu Gln Arg Ala Cys Arg Ala Ile Leu His Ile Pro Arg Arg Ile 835 840 845Arg Gln Gly Leu Glu Arg Leu Leu Leu 850 8559867PRTArtificial SequenceSynthetic Construct (Mosaic gp160 Env2) 9Met Arg Val Arg Gly Ile Gln Arg Asn Trp Pro Gln Trp Trp Ile Trp1 5 10 15Gly Ile Leu Gly Phe Trp Met Ile Ile Ile Cys Arg Val Met Gly Asn 20 25 30Leu Trp Val Thr Val Tyr Tyr Gly Val Pro Val Trp Lys Glu Ala Lys 35 40 45Thr Thr Leu Phe Cys Ala Ser Asp Ala Lys Ala Tyr Glu Lys Glu Val 50 55 60His Asn Val Trp Ala Thr His Ala Cys Val Pro Thr Asp Pro Asn Pro65 70 75 80Gln Glu Met Val Leu Glu Asn Val Thr Glu Asn Phe Asn Met Trp Lys 85 90 95Asn Asp Met Val Asp Gln Met His Glu Asp Ile Ile Arg Leu Trp Asp 100 105 110Gln Ser Leu Lys Pro Cys Val Lys Leu Thr Pro Leu Cys Val Thr Leu 115 120 125Glu Cys Arg Asn Val Arg Asn Val Ser Ser Asn Gly Thr Tyr Asn Ile 130 135 140Ile His Asn Glu Thr Tyr Lys Glu Met Lys Asn Cys Ser Phe Asn Ala145 150 155 160Thr Thr Val Val Glu Asp Arg Lys Gln Lys Val His Ala Leu Phe Tyr 165 170 175Arg Leu Asp Ile Val Pro Leu Asp Glu Asn Asn Ser Ser Glu Lys Ser 180 185 190Ser Glu Asn Ser Ser Glu Tyr Tyr Arg Leu Ile Asn Cys Asn Thr Ser 195 200 205Ala Ile Thr Gln Ala Cys Pro Lys Val Ser Phe Asp Pro Ile Pro Ile 210 215 220His Tyr Cys Ala Pro Ala Gly Tyr Ala Ile Leu Lys Cys Asn Asn Lys225 230 235 240Thr Phe Asn Gly Thr Gly Pro Cys Asn Asn Val Ser Thr Val Gln Cys 245 250 255Thr His Gly Ile Lys Pro Val Val Ser Thr Gln Leu Leu Leu Asn Gly 260 265 270Ser Leu Ala Glu Glu Glu Ile Ile Ile Arg Ser Glu Asn Leu Thr Asn 275 280 285Asn Ala Lys Thr Ile Ile Val His Leu Asn Glu Thr Val Asn Ile Thr 290 295 300Cys Thr Arg Pro Asn Asn Asn Thr Arg Lys Ser Ile Arg Ile Gly Pro305 310 315 320Gly Gln Thr Phe Tyr Ala Thr Gly Asp Ile Ile Gly Asp Ile Arg Gln 325 330 335Ala His Cys Asn Leu Ser Arg Asp Gly Trp Asn Lys Thr Leu Gln Gly 340 345 350Val Lys Lys Lys Leu Ala Glu His Phe Pro Asn Lys Thr Ile Asn Phe 355 360 365Thr Ser Ser Ser Gly Gly Asp Leu Glu Ile Thr Thr His Ser Phe Asn 370 375 380Cys Arg Gly Glu Phe Phe Tyr Cys Asn Thr Ser Gly Leu Phe Asn Gly385 390 395 400Thr Tyr Met Pro Asn Gly Thr Asn Ser Asn Ser Ser Ser Asn Ile Thr 405 410 415Leu Pro Cys Arg Ile Lys Gln Ile Ile Asn Met Trp Gln Glu Val Gly 420 425 430Arg Ala Met Tyr Ala Pro Pro Ile Ala Gly Asn Ile Thr Cys Arg Ser 435 440 445Asn Ile Thr Gly Leu Leu Leu Thr Arg Asp Gly Gly Ser Asn Asn Gly 450 455 460Val Pro Asn Asp Thr Glu Thr Phe Arg Pro Gly Gly Gly Asp Met Arg465 470 475 480Asn Asn Trp Arg Ser Glu Leu Tyr Lys Tyr Lys Val Val Glu Val Lys 485 490 495Pro Leu Gly Val Ala Pro Thr Glu Ala Lys Arg Arg Val Val Glu Arg 500 505 510Glu Lys Arg Ala Val Gly Ile Gly Ala Val Phe Leu Gly Ile Leu Gly 515 520 525Ala Ala Gly Ser Thr Met Gly Ala Ala Ser Ile Thr Leu Thr Val Gln 530 535 540Ala Arg Gln Leu Leu Ser Gly Ile Val Gln Gln Gln Ser Asn Leu Leu545 550 555 560Arg Ala Ile Glu Ala Gln Gln His Met Leu Gln Leu Thr Val Trp Gly 565 570 575Ile Lys Gln Leu Gln Thr Arg Val Leu Ala Ile Glu Arg Tyr Leu Gln 580 585 590Asp Gln Gln Leu Leu Gly Leu Trp Gly Cys Ser Gly Lys Leu Ile Cys 595 600 605Thr Thr Ala Val Pro Trp Asn Thr Ser Trp Ser Asn Lys Ser Gln Thr 610 615 620Asp Ile Trp Asp Asn Met Thr Trp Met Gln Trp Asp Lys Glu Ile Gly625 630 635 640Asn Tyr Thr Gly Glu Ile Tyr Arg Leu Leu Glu Glu Ser Gln Asn Gln 645 650 655Gln Glu Lys Asn Glu Lys Asp Leu Leu Ala Leu Asp Ser Trp Lys Asn 660 665 670Leu Trp Asn Trp Phe Asp Ile Thr Asn Trp Leu Trp Tyr Ile Lys Ile 675 680 685Phe Ile Met Ile Val Gly Gly Leu Ile Gly Leu Arg Ile Ile Leu Gly 690 695 700Val Leu Ser Ile Val Arg Arg Val Arg Gln Gly Tyr Ser Pro Leu Ser705 710 715 720Phe Gln Thr Leu Thr Pro Asn Pro Arg Gly Leu Asp Arg Leu Gly Arg 725 730 735Ile Glu Glu Glu Gly Gly Glu Gln Asp Arg Asp Arg Ser Ile Arg Leu 740 745 750Val Asn Gly Phe Leu Ala Leu Ala Trp Asp Asp Leu Arg Ser Leu Cys 755 760 765Leu Phe Ser Tyr His Gln Leu Arg Asp Phe Ile Leu Ile Val Ala Arg 770 775 780Ala Val Glu Leu Leu Gly Arg Ser Ser Leu Arg Gly Leu Gln Arg Gly785 790 795 800Trp Glu Ala Leu Lys Tyr Leu Gly Asn Leu Val Gln Tyr Trp Gly Leu 805 810 815Glu Leu Lys Lys Gly Ala Ile Ser Leu Leu Asp Thr Ile Ala Ile Ala 820 825 830Val Ala Glu Gly Thr Asp Arg Ile Ile Glu Leu Ile Gln Ser Ile Cys 835 840 845Arg Ala Ile Arg Asn Ile Pro Arg Arg Ile Arg Gln Gly Phe Glu Ala 850 855 860Ser Leu Leu86510500PRTArtificial SequenceSynthetic Construct (Mosaic gag1) 10Met Gly Ala Arg Ala Ser Val Leu Ser Gly Gly Glu Leu Asp Arg Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys Lys Tyr Arg Leu Lys 20 25 30His Ile Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Val Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Arg Gln Ile Leu Gly Gln Leu 50 55

60Gln Pro Ser Leu Gln Thr Gly Ser Glu Glu Leu Arg Ser Leu Tyr Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Gln Arg Ile Glu Ile Lys Asp 85 90 95Thr Lys Glu Ala Leu Glu Lys Ile Glu Glu Glu Gln Asn Lys Ser Lys 100 105 110Lys Lys Ala Gln Gln Ala Ala Ala Asp Thr Gly Asn Ser Ser Gln Val 115 120 125Ser Gln Asn Tyr Pro Ile Val Gln Asn Ile Gln Gly Gln Met Val His 130 135 140Gln Ala Ile Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Val Glu145 150 155 160Glu Lys Ala Phe Ser Pro Glu Val Ile Pro Met Phe Ser Ala Leu Ser 165 170 175Glu Gly Ala Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly 180 185 190Gly His Gln Ala Ala Met Gln Met Leu Lys Glu Thr Ile Asn Glu Glu 195 200 205Ala Ala Glu Trp Asp Arg Val His Pro Val His Ala Gly Pro Ile Ala 210 215 220Pro Gly Gln Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr225 230 235 240Ser Thr Leu Gln Glu Gln Ile Gly Trp Met Thr Asn Asn Pro Pro Ile 245 250 255Pro Val Gly Glu Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys 260 265 270Ile Val Arg Met Tyr Ser Pro Val Ser Ile Leu Asp Ile Arg Gln Gly 275 280 285Pro Lys Glu Pro Phe Arg Asp Tyr Val Asp Arg Phe Tyr Lys Thr Leu 290 295 300Arg Ala Glu Gln Ala Ser Gln Asp Val Lys Asn Trp Met Thr Glu Thr305 310 315 320Leu Leu Val Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Lys Ala 325 330 335Leu Gly Pro Ala Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly 340 345 350Val Gly Gly Pro Gly His Lys Ala Arg Val Leu Ala Glu Ala Met Ser 355 360 365Gln Val Thr Asn Ser Ala Thr Ile Met Met Gln Arg Gly Asn Phe Arg 370 375 380Asn Gln Arg Lys Thr Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His385 390 395 400Ile Ala Lys Asn Cys Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys 405 410 415Gly Lys Glu Gly His Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn 420 425 430Phe Leu Gly Lys Ile Trp Pro Ser Asn Lys Gly Arg Pro Gly Asn Phe 435 440 445Leu Gln Asn Arg Pro Glu Pro Thr Ala Pro Pro Glu Glu Ser Phe Arg 450 455 460Phe Gly Glu Glu Thr Thr Thr Pro Ser Gln Lys Gln Glu Pro Ile Asp465 470 475 480Lys Glu Met Tyr Pro Leu Ala Ser Leu Lys Ser Leu Phe Gly Asn Asp 485 490 495Pro Ser Ser Gln 50011491PRTArtificial SequenceSynthetic Construct (Mosaic gag2) 11Met Gly Ala Arg Ala Ser Ile Leu Arg Gly Gly Lys Leu Asp Lys Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys His Tyr Met Leu Lys 20 25 30His Leu Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Leu Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Lys Gln Ile Ile Lys Gln Leu 50 55 60Gln Pro Ala Leu Gln Thr Gly Thr Glu Glu Leu Arg Ser Leu Phe Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Ala Glu Ile Glu Val Arg Asp 85 90 95Thr Lys Glu Ala Leu Asp Lys Ile Glu Glu Glu Gln Asn Lys Ser Gln 100 105 110Gln Lys Thr Gln Gln Ala Lys Glu Ala Asp Gly Lys Val Ser Gln Asn 115 120 125Tyr Pro Ile Val Gln Asn Leu Gln Gly Gln Met Val His Gln Pro Ile 130 135 140Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Ile Glu Glu Lys Ala145 150 155 160Phe Ser Pro Glu Val Ile Pro Met Phe Thr Ala Leu Ser Glu Gly Ala 165 170 175Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly Gly His Gln 180 185 190Ala Ala Met Gln Met Leu Lys Asp Thr Ile Asn Glu Glu Ala Ala Glu 195 200 205Trp Asp Arg Leu His Pro Val His Ala Gly Pro Val Ala Pro Gly Gln 210 215 220Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr Ser Asn Leu225 230 235 240Gln Glu Gln Ile Ala Trp Met Thr Ser Asn Pro Pro Ile Pro Val Gly 245 250 255Asp Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys Ile Val Arg 260 265 270Met Tyr Ser Pro Thr Ser Ile Leu Asp Ile Lys Gln Gly Pro Lys Glu 275 280 285Pro Phe Arg Asp Tyr Val Asp Arg Phe Phe Lys Thr Leu Arg Ala Glu 290 295 300Gln Ala Thr Gln Asp Val Lys Asn Trp Met Thr Asp Thr Leu Leu Val305 310 315 320Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Arg Ala Leu Gly Pro 325 330 335Gly Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly Val Gly Gly 340 345 350Pro Ser His Lys Ala Arg Val Leu Ala Glu Ala Met Ser Gln Thr Asn 355 360 365Ser Thr Ile Leu Met Gln Arg Ser Asn Phe Lys Gly Ser Lys Arg Ile 370 375 380Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His Ile Ala Arg Asn Cys385 390 395 400Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys Gly Lys Glu Gly His 405 410 415Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn Phe Leu Gly Lys Ile 420 425 430Trp Pro Ser His Lys Gly Arg Pro Gly Asn Phe Leu Gln Ser Arg Pro 435 440 445Glu Pro Thr Ala Pro Pro Ala Glu Ser Phe Arg Phe Glu Glu Thr Thr 450 455 460Pro Ala Pro Lys Gln Glu Pro Lys Asp Arg Glu Pro Leu Thr Ser Leu465 470 475 480Arg Ser Leu Phe Gly Ser Asp Pro Leu Ser Gln 485 49012999PRTArtificial SequenceSynthetic Construct (Mosaic pol1) 12Phe Phe Arg Glu Asn Leu Ala Phe Gln Gln Gly Glu Ala Arg Glu Phe1 5 10 15Pro Ser Glu Gln Thr Arg Ala Asn Ser Pro Thr Ser Arg Glu Leu Gln 20 25 30Val Arg Gly Asp Asn Pro His Ser Glu Ala Gly Ala Glu Arg Gln Gly 35 40 45Thr Leu Asn Phe Pro Gln Ile Thr Leu Trp Gln Arg Pro Leu Val Ser 50 55 60Ile Lys Val Gly Gly Gln Ile Arg Glu Ala Leu Leu Asp Thr Gly Ala65 70 75 80Asp Asp Thr Val Leu Glu Asp Ile Asn Leu Pro Gly Lys Trp Lys Pro 85 90 95Lys Met Ile Gly Gly Ile Gly Gly Phe Ile Lys Val Arg Gln Tyr Asp 100 105 110Gln Ile Leu Ile Glu Ile Cys Gly Lys Lys Ala Ile Gly Thr Val Leu 115 120 125Val Gly Pro Thr Pro Val Asn Ile Ile Gly Arg Asn Met Leu Thr Gln 130 135 140Leu Gly Cys Thr Leu Asn Phe Pro Ile Ser Pro Ile Glu Thr Val Pro145 150 155 160Val Lys Leu Lys Pro Gly Met Asp Gly Pro Arg Val Lys Gln Trp Pro 165 170 175Leu Thr Glu Glu Lys Ile Lys Ala Leu Thr Ala Ile Cys Glu Glu Met 180 185 190Glu Lys Glu Gly Lys Ile Thr Lys Ile Gly Pro Glu Asn Pro Tyr Asn 195 200 205Thr Pro Val Phe Ala Ile Lys Lys Lys Asp Ser Thr Lys Trp Arg Lys 210 215 220Leu Val Asp Phe Arg Glu Leu Asn Lys Arg Thr Gln Asp Phe Trp Glu225 230 235 240Val Gln Leu Gly Ile Pro His Pro Ala Gly Leu Lys Lys Lys Lys Ser 245 250 255Val Thr Val Leu Asp Val Gly Asp Ala Tyr Phe Ser Val Pro Leu Asp 260 265 270Glu Gly Phe Arg Lys Tyr Thr Ala Phe Thr Ile Pro Ser Thr Asn Asn 275 280 285Glu Thr Pro Gly Ile Arg Tyr Gln Tyr Asn Val Leu Pro Gln Gly Trp 290 295 300Lys Gly Ser Pro Ala Ile Phe Gln Cys Ser Met Thr Arg Ile Leu Glu305 310 315 320Pro Phe Arg Ala Lys Asn Pro Glu Ile Val Ile Tyr Gln Tyr Met Asp 325 330 335Asp Leu Tyr Val Gly Ser Asp Leu Glu Ile Gly Gln His Arg Ala Lys 340 345 350Ile Glu Glu Leu Arg Glu His Leu Leu Lys Trp Gly Phe Thr Thr Pro 355 360 365Asp Lys Lys His Gln Lys Glu Pro Pro Phe Leu Trp Met Gly Tyr Glu 370 375 380Leu His Pro Asp Lys Trp Thr Val Gln Pro Ile Gln Leu Pro Glu Lys385 390 395 400Asp Ser Trp Thr Val Asn Asp Ile Gln Lys Leu Val Gly Lys Leu Asn 405 410 415Trp Ala Ser Gln Ile Tyr Pro Gly Ile Lys Val Arg Gln Leu Cys Lys 420 425 430Leu Leu Arg Gly Ala Lys Ala Leu Thr Asp Ile Val Pro Leu Thr Glu 435 440 445Glu Ala Glu Leu Glu Leu Ala Glu Asn Arg Glu Ile Leu Lys Glu Pro 450 455 460Val His Gly Val Tyr Tyr Asp Pro Ser Lys Asp Leu Ile Ala Glu Ile465 470 475 480Gln Lys Gln Gly His Asp Gln Trp Thr Tyr Gln Ile Tyr Gln Glu Pro 485 490 495Phe Lys Asn Leu Lys Thr Gly Lys Tyr Ala Lys Met Arg Thr Ala His 500 505 510Thr Asn Asp Val Lys Gln Leu Thr Glu Ala Val Gln Lys Ile Ala Met 515 520 525Glu Ser Ile Val Ile Trp Gly Lys Thr Pro Lys Phe Arg Leu Pro Ile 530 535 540Gln Lys Glu Thr Trp Glu Thr Trp Trp Thr Asp Tyr Trp Gln Ala Thr545 550 555 560Trp Ile Pro Glu Trp Glu Phe Val Asn Thr Pro Pro Leu Val Lys Leu 565 570 575Trp Tyr Gln Leu Glu Lys Asp Pro Ile Ala Gly Val Glu Thr Phe Tyr 580 585 590Val Asp Gly Ala Ala Asn Arg Glu Thr Lys Leu Gly Lys Ala Gly Tyr 595 600 605Val Thr Asp Arg Gly Arg Gln Lys Ile Val Ser Leu Thr Glu Thr Thr 610 615 620Asn Gln Lys Thr Glu Leu Gln Ala Ile Tyr Leu Ala Leu Gln Asp Ser625 630 635 640Gly Ser Glu Val Asn Ile Val Thr Asp Ser Gln Tyr Ala Leu Gly Ile 645 650 655Ile Gln Ala Gln Pro Asp Lys Ser Glu Ser Glu Leu Val Asn Gln Ile 660 665 670Ile Glu Gln Leu Ile Lys Lys Glu Arg Val Tyr Leu Ser Trp Val Pro 675 680 685Ala His Lys Gly Ile Gly Gly Asn Glu Gln Val Asp Lys Leu Val Ser 690 695 700Ser Gly Ile Arg Lys Val Leu Phe Leu Asp Gly Ile Asp Lys Ala Gln705 710 715 720Glu Glu His Glu Lys Tyr His Ser Asn Trp Arg Ala Met Ala Ser Asp 725 730 735Phe Asn Leu Pro Pro Val Val Ala Lys Glu Ile Val Ala Ser Cys Asp 740 745 750Gln Cys Gln Leu Lys Gly Glu Ala Met His Gly Gln Val Asp Cys Ser 755 760 765Pro Gly Ile Trp Gln Leu Asp Cys Thr His Leu Glu Gly Lys Ile Ile 770 775 780Leu Val Ala Val His Val Ala Ser Gly Tyr Ile Glu Ala Glu Val Ile785 790 795 800Pro Ala Glu Thr Gly Gln Glu Thr Ala Tyr Phe Ile Leu Lys Leu Ala 805 810 815Gly Arg Trp Pro Val Lys Val Ile His Thr Asp Asn Gly Ser Asn Phe 820 825 830Thr Ser Ala Ala Val Lys Ala Ala Cys Trp Trp Ala Gly Ile Gln Gln 835 840 845Glu Phe Gly Ile Pro Tyr Asn Pro Gln Ser Gln Gly Val Val Glu Ser 850 855 860Met Asn Lys Glu Leu Lys Lys Ile Ile Gly Gln Val Arg Asp Gln Ala865 870 875 880Glu His Leu Lys Thr Ala Val Gln Met Ala Val Phe Ile His Asn Phe 885 890 895Lys Arg Lys Gly Gly Ile Gly Gly Tyr Ser Ala Gly Glu Arg Ile Ile 900 905 910Asp Ile Ile Ala Thr Asp Ile Gln Thr Lys Glu Leu Gln Lys Gln Ile 915 920 925Ile Lys Ile Gln Asn Phe Arg Val Tyr Tyr Arg Asp Ser Arg Asp Pro 930 935 940Ile Trp Lys Gly Pro Ala Lys Leu Leu Trp Lys Gly Glu Gly Ala Val945 950 955 960Val Ile Gln Asp Asn Ser Asp Ile Lys Val Val Pro Arg Arg Lys Val 965 970 975Lys Ile Ile Lys Asp Tyr Gly Lys Gln Met Ala Gly Ala Asp Cys Val 980 985 990Ala Gly Arg Gln Asp Glu Asp 995131003PRTArtificial SequenceSynthetic Construct (Mosaic pol2) 13Phe Phe Arg Glu Asn Leu Ala Phe Pro Gln Gly Lys Ala Arg Glu Phe1 5 10 15Ser Ser Glu Gln Thr Arg Ala Asn Ser Pro Thr Arg Arg Glu Leu Gln 20 25 30Val Trp Gly Arg Asp Asn Asn Ser Leu Ser Glu Ala Gly Ala Asp Arg 35 40 45Gln Gly Thr Val Ser Phe Ser Phe Pro Gln Ile Thr Leu Trp Gln Arg 50 55 60Pro Leu Val Thr Ile Lys Ile Gly Gly Gln Leu Lys Glu Ala Leu Leu65 70 75 80Asp Thr Gly Ala Asp Asp Thr Val Leu Glu Glu Met Asn Leu Pro Gly 85 90 95Arg Trp Lys Pro Lys Met Ile Gly Gly Ile Gly Gly Phe Ile Lys Val 100 105 110Arg Gln Tyr Asp Gln Ile Pro Ile Glu Ile Cys Gly His Lys Ala Ile 115 120 125Gly Thr Val Leu Val Gly Pro Thr Pro Val Asn Ile Ile Gly Arg Asn 130 135 140Leu Leu Thr Gln Ile Gly Cys Thr Leu Asn Phe Pro Ile Ser Pro Ile145 150 155 160Glu Thr Val Pro Val Lys Leu Lys Pro Gly Met Asp Gly Pro Lys Val 165 170 175Lys Gln Trp Pro Leu Thr Glu Glu Lys Ile Lys Ala Leu Val Glu Ile 180 185 190Cys Thr Glu Met Glu Lys Glu Gly Lys Ile Ser Lys Ile Gly Pro Glu 195 200 205Asn Pro Tyr Asn Thr Pro Ile Phe Ala Ile Lys Lys Lys Asp Ser Thr 210 215 220Lys Trp Arg Lys Leu Val Asp Phe Arg Glu Leu Asn Lys Arg Thr Gln225 230 235 240Asp Phe Trp Glu Val Gln Leu Gly Ile Pro His Pro Ala Gly Leu Lys 245 250 255Lys Lys Lys Ser Val Thr Val Leu Asp Val Gly Asp Ala Tyr Phe Ser 260 265 270Val Pro Leu Asp Glu Asp Phe Arg Lys Tyr Thr Ala Phe Thr Ile Pro 275 280 285Ser Ile Asn Asn Glu Thr Pro Gly Ile Arg Tyr Gln Tyr Asn Val Leu 290 295 300Pro Gln Gly Trp Lys Gly Ser Pro Ala Ile Phe Gln Ser Ser Met Thr305 310 315 320Lys Ile Leu Glu Pro Phe Arg Lys Gln Asn Pro Asp Ile Val Ile Tyr 325 330 335Gln Tyr Met Asp Asp Leu Tyr Val Gly Ser Asp Leu Glu Ile Gly Gln 340 345 350His Arg Thr Lys Ile Glu Glu Leu Arg Gln His Leu Leu Arg Trp Gly 355 360 365Phe Thr Thr Pro Asp Lys Lys His Gln Lys Glu Pro Pro Phe Leu Trp 370 375 380Met Gly Tyr Glu Leu His Pro Asp Lys Trp Thr Val Gln Pro Ile Val385 390 395 400Leu Pro Glu Lys Asp Ser Trp Thr Val Asn Asp Ile Gln Lys Leu Val 405 410 415Gly Lys Leu Asn Trp Ala Ser Gln Ile Tyr Ala Gly Ile Lys Val Lys 420 425 430Gln Leu Cys Lys Leu Leu Arg Gly Thr Lys Ala Leu Thr Glu Val Val 435 440 445Pro Leu Thr Glu Glu Ala Glu Leu Glu Leu Ala Glu Asn Arg Glu Ile 450 455 460Leu Lys Glu Pro Val His Gly Val Tyr Tyr Asp Pro Ser Lys Asp Leu465 470 475 480Ile Ala Glu Ile Gln Lys Gln Gly Gln Gly Gln Trp Thr Tyr Gln Ile 485 490 495Tyr Gln Glu Pro Phe Lys Asn Leu Lys Thr Gly Lys Tyr Ala Arg Met 500 505 510Arg Gly Ala His Thr Asn Asp Val Lys Gln Leu Thr

Glu Ala Val Gln 515 520 525Lys Ile Ala Thr Glu Ser Ile Val Ile Trp Gly Lys Thr Pro Lys Phe 530 535 540Lys Leu Pro Ile Gln Lys Glu Thr Trp Glu Ala Trp Trp Thr Glu Tyr545 550 555 560Trp Gln Ala Thr Trp Ile Pro Glu Trp Glu Phe Val Asn Thr Pro Pro 565 570 575Leu Val Lys Leu Trp Tyr Gln Leu Glu Lys Glu Pro Ile Val Gly Ala 580 585 590Glu Thr Phe Tyr Val Asp Gly Ala Ala Asn Arg Glu Thr Lys Leu Gly 595 600 605Lys Ala Gly Tyr Val Thr Asp Arg Gly Arg Gln Lys Val Val Ser Leu 610 615 620Thr Asp Thr Thr Asn Gln Lys Thr Glu Leu Gln Ala Ile His Leu Ala625 630 635 640Leu Gln Asp Ser Gly Leu Glu Val Asn Ile Val Thr Asp Ser Gln Tyr 645 650 655Ala Leu Gly Ile Ile Gln Ala Gln Pro Asp Lys Ser Glu Ser Glu Leu 660 665 670Val Ser Gln Ile Ile Glu Gln Leu Ile Lys Lys Glu Lys Val Tyr Leu 675 680 685Ala Trp Val Pro Ala His Lys Gly Ile Gly Gly Asn Glu Gln Val Asp 690 695 700Lys Leu Val Ser Arg Gly Ile Arg Lys Val Leu Phe Leu Asp Gly Ile705 710 715 720Asp Lys Ala Gln Glu Glu His Glu Lys Tyr His Ser Asn Trp Arg Ala 725 730 735Met Ala Ser Glu Phe Asn Leu Pro Pro Ile Val Ala Lys Glu Ile Val 740 745 750Ala Ser Cys Asp Lys Cys Gln Leu Lys Gly Glu Ala Ile His Gly Gln 755 760 765Val Asp Cys Ser Pro Gly Ile Trp Gln Leu Asp Cys Thr His Leu Glu 770 775 780Gly Lys Val Ile Leu Val Ala Val His Val Ala Ser Gly Tyr Ile Glu785 790 795 800Ala Glu Val Ile Pro Ala Glu Thr Gly Gln Glu Thr Ala Tyr Phe Leu 805 810 815Leu Lys Leu Ala Gly Arg Trp Pro Val Lys Thr Ile His Thr Asp Asn 820 825 830Gly Ser Asn Phe Thr Ser Ala Thr Val Lys Ala Ala Cys Trp Trp Ala 835 840 845Gly Ile Lys Gln Glu Phe Gly Ile Pro Tyr Asn Pro Gln Ser Gln Gly 850 855 860Val Val Glu Ser Ile Asn Lys Glu Leu Lys Lys Ile Ile Gly Gln Val865 870 875 880Arg Asp Gln Ala Glu His Leu Lys Thr Ala Val Gln Met Ala Val Phe 885 890 895Ile His Asn Phe Lys Arg Lys Gly Gly Ile Gly Glu Tyr Ser Ala Gly 900 905 910Glu Arg Ile Val Asp Ile Ile Ala Ser Asp Ile Gln Thr Lys Glu Leu 915 920 925Gln Lys Gln Ile Thr Lys Ile Gln Asn Phe Arg Val Tyr Tyr Arg Asp 930 935 940Ser Arg Asp Pro Leu Trp Lys Gly Pro Ala Lys Leu Leu Trp Lys Gly945 950 955 960Glu Gly Ala Val Val Ile Gln Asp Asn Ser Asp Ile Lys Val Val Pro 965 970 975Arg Arg Lys Ala Lys Ile Ile Arg Asp Tyr Gly Lys Gln Met Ala Gly 980 985 990Asp Asp Cys Val Ala Ser Arg Gln Asp Glu Asp 995 100014206PRTArtificial SequenceSynthetic Construct (Mosaic nef1) 14Met Gly Gly Lys Trp Ser Lys Ser Ser Val Val Gly Trp Pro Ala Ile1 5 10 15Arg Glu Arg Met Arg Arg Ala Glu Pro Ala Ala Asp Gly Val Gly Ala 20 25 30Val Ser Arg Asp Leu Glu Lys His Gly Ala Ile Thr Ser Ser Asn Thr 35 40 45Ala Ala Asn Asn Ala Asp Cys Ala Trp Leu Glu Ala Gln Glu Glu Glu 50 55 60Glu Val Gly Phe Pro Val Arg Pro Gln Val Pro Leu Arg Pro Met Thr65 70 75 80Tyr Lys Gly Ala Leu Asp Leu Ser His Phe Leu Lys Glu Lys Gly Gly 85 90 95Leu Glu Gly Leu Ile Tyr Ser Gln Lys Arg Gln Asp Ile Leu Asp Leu 100 105 110Trp Val Tyr His Thr Gln Gly Tyr Phe Pro Asp Trp Gln Asn Tyr Thr 115 120 125Pro Gly Pro Gly Ile Arg Tyr Pro Leu Thr Phe Gly Trp Cys Phe Lys 130 135 140Leu Val Pro Val Glu Pro Glu Lys Ile Glu Glu Ala Asn Glu Gly Glu145 150 155 160Asn Asn Ser Leu Leu His Pro Met Ser Gln His Gly Met Asp Asp Pro 165 170 175Glu Lys Glu Val Leu Met Trp Lys Phe Asp Ser Arg Leu Ala Phe His 180 185 190His Met Ala Arg Glu Leu His Pro Glu Tyr Tyr Lys Asp Cys 195 200 20515206PRTArtificial SequenceSynthetic Construct (Mosaic nef2) 15Met Gly Gly Lys Trp Ser Lys Ser Ser Ile Val Gly Trp Pro Ala Val1 5 10 15Arg Glu Arg Ile Arg Arg Ala Glu Pro Ala Ala Glu Gly Val Gly Ala 20 25 30Ala Ser Gln Asp Leu Asp Lys Tyr Gly Ala Leu Thr Ser Ser Asn Thr 35 40 45Ala Ala Thr Asn Ala Asp Cys Ala Trp Leu Glu Ala Gln Glu Asp Glu 50 55 60Glu Val Gly Phe Pro Val Lys Pro Gln Val Pro Leu Arg Pro Met Thr65 70 75 80Tyr Lys Ala Ala Phe Asp Leu Ser Phe Phe Leu Lys Glu Lys Gly Gly 85 90 95Leu Asp Gly Leu Ile Tyr Ser Lys Lys Arg Gln Glu Ile Leu Asp Leu 100 105 110Trp Val Tyr Asn Thr Gln Gly Phe Phe Pro Asp Trp Gln Asn Tyr Thr 115 120 125Pro Gly Pro Gly Val Arg Tyr Pro Leu Thr Phe Gly Trp Cys Phe Lys 130 135 140Leu Val Pro Val Asp Pro Arg Glu Val Glu Glu Ala Asn Lys Gly Glu145 150 155 160Asn Asn Cys Leu Leu His Pro Met Asn Leu His Gly Met Asp Asp Pro 165 170 175Glu Arg Glu Val Leu Val Trp Arg Phe Asp Ser Arg Leu Ala Phe His 180 185 190His Met Ala Arg Glu Lys His Pro Glu Tyr Tyr Lys Asn Cys 195 200 20516850PRTArtificial SequenceSynthetic Construct (Mosaic pol1) 16Met Ala Pro Ile Ser Pro Ile Glu Thr Val Pro Val Lys Leu Lys Pro1 5 10 15Gly Met Asp Gly Pro Arg Val Lys Gln Trp Pro Leu Thr Glu Glu Lys 20 25 30Ile Lys Ala Leu Thr Ala Ile Cys Glu Glu Met Glu Lys Glu Gly Lys 35 40 45Ile Thr Lys Ile Gly Pro Glu Asn Pro Tyr Asn Thr Pro Val Phe Ala 50 55 60Ile Lys Lys Lys Asp Ser Thr Lys Trp Arg Lys Leu Val Asp Phe Arg65 70 75 80Glu Leu Asn Lys Arg Thr Gln Asp Phe Trp Glu Val Gln Leu Gly Ile 85 90 95Pro His Pro Ala Gly Leu Lys Lys Lys Lys Ser Val Thr Val Leu Ala 100 105 110Val Gly Asp Ala Tyr Phe Ser Val Pro Leu Asp Glu Gly Phe Arg Lys 115 120 125Tyr Thr Ala Phe Thr Ile Pro Ser Thr Asn Asn Glu Thr Pro Gly Ile 130 135 140Arg Tyr Gln Tyr Asn Val Leu Pro Gln Gly Trp Lys Gly Ser Pro Ala145 150 155 160Ile Phe Gln Cys Ser Met Thr Arg Ile Leu Glu Pro Phe Arg Ala Lys 165 170 175Asn Pro Glu Ile Val Ile Tyr Gln Tyr Met Ala Ala Leu Tyr Val Gly 180 185 190Ser Asp Leu Glu Ile Gly Gln His Arg Ala Lys Ile Glu Glu Leu Arg 195 200 205Glu His Leu Leu Lys Trp Gly Phe Thr Thr Pro Asp Lys Lys His Gln 210 215 220Lys Glu Pro Pro Phe Leu Trp Met Gly Tyr Glu Leu His Pro Asp Lys225 230 235 240Trp Thr Val Gln Pro Ile Gln Leu Pro Glu Lys Asp Ser Trp Thr Val 245 250 255Asn Asp Ile Gln Lys Leu Val Gly Lys Leu Asn Trp Ala Ser Gln Ile 260 265 270Tyr Pro Gly Ile Lys Val Arg Gln Leu Cys Lys Leu Leu Arg Gly Ala 275 280 285Lys Ala Leu Thr Asp Ile Val Pro Leu Thr Glu Glu Ala Glu Leu Glu 290 295 300Leu Ala Glu Asn Arg Glu Ile Leu Lys Glu Pro Val His Gly Val Tyr305 310 315 320Tyr Asp Pro Ser Lys Asp Leu Ile Ala Glu Ile Gln Lys Gln Gly His 325 330 335Asp Gln Trp Thr Tyr Gln Ile Tyr Gln Glu Pro Phe Lys Asn Leu Lys 340 345 350Thr Gly Lys Tyr Ala Lys Met Arg Thr Ala His Thr Asn Asp Val Lys 355 360 365Gln Leu Thr Glu Ala Val Gln Lys Ile Ala Met Glu Ser Ile Val Ile 370 375 380Trp Gly Lys Thr Pro Lys Phe Arg Leu Pro Ile Gln Lys Glu Thr Trp385 390 395 400Glu Thr Trp Trp Thr Asp Tyr Trp Gln Ala Thr Trp Ile Pro Glu Trp 405 410 415Glu Phe Val Asn Thr Pro Pro Leu Val Lys Leu Trp Tyr Gln Leu Glu 420 425 430Lys Asp Pro Ile Ala Gly Val Glu Thr Phe Tyr Val Ala Gly Ala Ala 435 440 445Asn Arg Glu Thr Lys Leu Gly Lys Ala Gly Tyr Val Thr Asp Arg Gly 450 455 460Arg Gln Lys Ile Val Ser Leu Thr Glu Thr Thr Asn Gln Lys Thr Ala465 470 475 480Leu Gln Ala Ile Tyr Leu Ala Leu Gln Asp Ser Gly Ser Glu Val Asn 485 490 495Ile Val Thr Ala Ser Gln Tyr Ala Leu Gly Ile Ile Gln Ala Gln Pro 500 505 510Asp Lys Ser Glu Ser Glu Leu Val Asn Gln Ile Ile Glu Gln Leu Ile 515 520 525Lys Lys Glu Arg Val Tyr Leu Ser Trp Val Pro Ala His Lys Gly Ile 530 535 540Gly Gly Asn Glu Gln Val Asp Lys Leu Val Ser Ser Gly Ile Arg Lys545 550 555 560Val Leu Phe Leu Asp Gly Ile Asp Lys Ala Gln Glu Glu His Glu Lys 565 570 575Tyr His Ser Asn Trp Arg Ala Met Ala Ser Asp Phe Asn Leu Pro Pro 580 585 590Val Val Ala Lys Glu Ile Val Ala Ser Cys Asp Gln Cys Gln Leu Lys 595 600 605Gly Glu Ala Met His Gly Gln Val Asp Cys Ser Pro Gly Ile Trp Gln 610 615 620Leu Ala Cys Thr His Leu Glu Gly Lys Ile Ile Leu Val Ala Val His625 630 635 640Val Ala Ser Gly Tyr Ile Glu Ala Glu Val Ile Pro Ala Glu Thr Gly 645 650 655Gln Glu Thr Ala Tyr Phe Ile Leu Lys Leu Ala Gly Arg Trp Pro Val 660 665 670Lys Val Ile His Thr Ala Asn Gly Ser Asn Phe Thr Ser Ala Ala Val 675 680 685Lys Ala Ala Cys Trp Trp Ala Gly Ile Gln Gln Glu Phe Gly Ile Pro 690 695 700Tyr Asn Pro Gln Ser Gln Gly Val Val Ala Ser Met Asn Lys Glu Leu705 710 715 720Lys Lys Ile Ile Gly Gln Val Arg Asp Gln Ala Glu His Leu Lys Thr 725 730 735Ala Val Gln Met Ala Val Phe Ile His Asn Phe Lys Arg Lys Gly Gly 740 745 750Ile Gly Gly Tyr Ser Ala Gly Glu Arg Ile Ile Asp Ile Ile Ala Thr 755 760 765Asp Ile Gln Thr Lys Glu Leu Gln Lys Gln Ile Ile Lys Ile Gln Asn 770 775 780Phe Arg Val Tyr Tyr Arg Asp Ser Arg Asp Pro Ile Trp Lys Gly Pro785 790 795 800Ala Lys Leu Leu Trp Lys Gly Glu Gly Ala Val Val Ile Gln Asp Asn 805 810 815Ser Asp Ile Lys Val Val Pro Arg Arg Lys Val Lys Ile Ile Lys Asp 820 825 830Tyr Gly Lys Gln Met Ala Gly Ala Asp Cys Val Ala Gly Arg Gln Asp 835 840 845Glu Asp 85017850PRTArtificial SequenceSynthetic Construct (Mosaic pol1) 17Met Ala Pro Ile Ser Pro Ile Glu Thr Val Pro Val Lys Leu Lys Pro1 5 10 15Gly Met Asp Gly Pro Lys Val Lys Gln Trp Pro Leu Thr Glu Glu Lys 20 25 30Ile Lys Ala Leu Val Glu Ile Cys Thr Glu Met Glu Lys Glu Gly Lys 35 40 45Ile Ser Lys Ile Gly Pro Glu Asn Pro Tyr Asn Thr Pro Ile Phe Ala 50 55 60Ile Lys Lys Lys Asp Ser Thr Lys Trp Arg Lys Leu Val Asp Phe Arg65 70 75 80Glu Leu Asn Lys Arg Thr Gln Asp Phe Trp Glu Val Gln Leu Gly Ile 85 90 95Pro His Pro Ala Gly Leu Lys Lys Lys Lys Ser Val Thr Val Leu Ala 100 105 110Val Gly Asp Ala Tyr Phe Ser Val Pro Leu Asp Glu Asp Phe Arg Lys 115 120 125Tyr Thr Ala Phe Thr Ile Pro Ser Ile Asn Asn Glu Thr Pro Gly Ile 130 135 140Arg Tyr Gln Tyr Asn Val Leu Pro Gln Gly Trp Lys Gly Ser Pro Ala145 150 155 160Ile Phe Gln Ser Ser Met Thr Lys Ile Leu Glu Pro Phe Arg Lys Gln 165 170 175Asn Pro Asp Ile Val Ile Tyr Gln Tyr Met Ala Ala Leu Tyr Val Gly 180 185 190Ser Asp Leu Glu Ile Gly Gln His Arg Thr Lys Ile Glu Glu Leu Arg 195 200 205Gln His Leu Leu Arg Trp Gly Phe Thr Thr Pro Asp Lys Lys His Gln 210 215 220Lys Glu Pro Pro Phe Leu Trp Met Gly Tyr Glu Leu His Pro Asp Lys225 230 235 240Trp Thr Val Gln Pro Ile Val Leu Pro Glu Lys Asp Ser Trp Thr Val 245 250 255Asn Asp Ile Gln Lys Leu Val Gly Lys Leu Asn Trp Ala Ser Gln Ile 260 265 270Tyr Ala Gly Ile Lys Val Lys Gln Leu Cys Lys Leu Leu Arg Gly Thr 275 280 285Lys Ala Leu Thr Glu Val Val Pro Leu Thr Glu Glu Ala Glu Leu Glu 290 295 300Leu Ala Glu Asn Arg Glu Ile Leu Lys Glu Pro Val His Gly Val Tyr305 310 315 320Tyr Asp Pro Ser Lys Asp Leu Ile Ala Glu Ile Gln Lys Gln Gly Gln 325 330 335Gly Gln Trp Thr Tyr Gln Ile Tyr Gln Glu Pro Phe Lys Asn Leu Lys 340 345 350Thr Gly Lys Tyr Ala Arg Met Arg Gly Ala His Thr Asn Asp Val Lys 355 360 365Gln Leu Thr Glu Ala Val Gln Lys Ile Ala Thr Glu Ser Ile Val Ile 370 375 380Trp Gly Lys Thr Pro Lys Phe Lys Leu Pro Ile Gln Lys Glu Thr Trp385 390 395 400Glu Ala Trp Trp Thr Glu Tyr Trp Gln Ala Thr Trp Ile Pro Glu Trp 405 410 415Glu Phe Val Asn Thr Pro Pro Leu Val Lys Leu Trp Tyr Gln Leu Glu 420 425 430Lys Glu Pro Ile Val Gly Ala Glu Thr Phe Tyr Val Ala Gly Ala Ala 435 440 445Asn Arg Glu Thr Lys Leu Gly Lys Ala Gly Tyr Val Thr Asp Arg Gly 450 455 460Arg Gln Lys Val Val Ser Leu Thr Asp Thr Thr Asn Gln Lys Thr Ala465 470 475 480Leu Gln Ala Ile His Leu Ala Leu Gln Asp Ser Gly Leu Glu Val Asn 485 490 495Ile Val Thr Ala Ser Gln Tyr Ala Leu Gly Ile Ile Gln Ala Gln Pro 500 505 510Asp Lys Ser Glu Ser Glu Leu Val Ser Gln Ile Ile Glu Gln Leu Ile 515 520 525Lys Lys Glu Lys Val Tyr Leu Ala Trp Val Pro Ala His Lys Gly Ile 530 535 540Gly Gly Asn Glu Gln Val Asp Lys Leu Val Ser Arg Gly Ile Arg Lys545 550 555 560Val Leu Phe Leu Asp Gly Ile Asp Lys Ala Gln Glu Glu His Glu Lys 565 570 575Tyr His Ser Asn Trp Arg Ala Met Ala Ser Glu Phe Asn Leu Pro Pro 580 585 590Ile Val Ala Lys Glu Ile Val Ala Ser Cys Asp Lys Cys Gln Leu Lys 595 600 605Gly Glu Ala Ile His Gly Gln Val Asp Cys Ser Pro Gly Ile Trp Gln 610 615 620Leu Ala Cys Thr His Leu Glu Gly Lys Val Ile Leu Val Ala Val His625 630 635 640Val Ala Ser Gly Tyr Ile Glu Ala Glu Val Ile Pro Ala Glu Thr Gly 645 650 655Gln Glu Thr Ala Tyr Phe Leu Leu Lys Leu Ala Gly Arg Trp Pro Val 660 665 670Lys Thr Ile His Thr Ala Asn Gly Ser Asn Phe Thr Ser Ala Thr Val 675 680 685Lys Ala Ala Cys

Trp Trp Ala Gly Ile Lys Gln Glu Phe Gly Ile Pro 690 695 700Tyr Asn Pro Gln Ser Gln Gly Val Val Ala Ser Ile Asn Lys Glu Leu705 710 715 720Lys Lys Ile Ile Gly Gln Val Arg Asp Gln Ala Glu His Leu Lys Thr 725 730 735Ala Val Gln Met Ala Val Phe Ile His Asn Phe Lys Arg Lys Gly Gly 740 745 750Ile Gly Glu Tyr Ser Ala Gly Glu Arg Ile Val Asp Ile Ile Ala Ser 755 760 765Asp Ile Gln Thr Lys Glu Leu Gln Lys Gln Ile Thr Lys Ile Gln Asn 770 775 780Phe Arg Val Tyr Tyr Arg Asp Ser Arg Asp Pro Leu Trp Lys Gly Pro785 790 795 800Ala Lys Leu Leu Trp Lys Gly Glu Gly Ala Val Val Ile Gln Asp Asn 805 810 815Ser Asp Ile Lys Val Val Pro Arg Arg Lys Ala Lys Ile Ile Arg Asp 820 825 830Tyr Gly Lys Gln Met Ala Gly Asp Asp Cys Val Ala Ser Arg Gln Asp 835 840 845Glu Asp 85018851PRTArtificial SequenceSynthetic Construct (Mos3 pol v3) 18Met Ala Pro Ile Ser Pro Ile Asp Thr Val Pro Val Thr Leu Lys Pro1 5 10 15Gly Met Asp Gly Pro Lys Ile Lys Gln Trp Pro Leu Thr Glu Glu Lys 20 25 30Ile Lys Ala Leu Thr Glu Ile Cys Thr Glu Met Glu Lys Glu Gly Lys 35 40 45Ile Ser Arg Ile Gly Pro Glu Asn Pro Tyr Asn Thr Pro Val Phe Ala 50 55 60Ile Lys Lys Lys Asn Ser Thr Arg Trp Arg Lys Leu Val Asp Phe Arg65 70 75 80Glu Leu Asn Lys Lys Thr Gln Asp Phe Trp Glu Val Gln Leu Gly Ile 85 90 95Pro His Pro Ala Gly Leu Lys Lys Lys Arg Ser Val Thr Val Leu Ala 100 105 110Val Gly Asp Ala Tyr Phe Ser Val Pro Leu Asp Lys Asp Phe Arg Lys 115 120 125Tyr Thr Ala Phe Thr Ile Pro Ser Val Asn Asn Glu Thr Pro Gly Val 130 135 140Arg Tyr Gln Tyr Asn Val Leu Pro Gln Gly Trp Lys Gly Ser Pro Ala145 150 155 160Ile Phe Gln Cys Ser Met Thr Lys Ile Leu Glu Pro Phe Arg Ala Gln 165 170 175Asn Pro Glu Ile Val Ile Tyr Gln Tyr Val Ala Ala Leu Tyr Val Gly 180 185 190Ser Asp Leu Glu Ile Glu Gln His Arg Thr Lys Ile Glu Glu Leu Arg 195 200 205Ala His Leu Leu Ser Trp Gly Phe Thr Thr Pro Asp Lys Lys His Gln 210 215 220Arg Glu Pro Pro Phe Leu Trp Met Gly Tyr Glu Leu His Pro Asp Arg225 230 235 240Trp Thr Val Gln Pro Ile Glu Leu Pro Glu Lys Glu Ser Trp Thr Val 245 250 255Asn Asp Ile Gln Lys Leu Val Gly Lys Leu Asn Trp Ala Ser Gln Ile 260 265 270Tyr Pro Gly Ile Lys Val Lys Gln Leu Cys Arg Leu Leu Arg Gly Ala 275 280 285Lys Ala Leu Thr Glu Val Ile Pro Leu Thr Lys Glu Ala Glu Leu Glu 290 295 300Leu Ala Glu Asn Arg Glu Ile Leu Arg Glu Pro Val His Gly Val Tyr305 310 315 320Tyr Asp Pro Ser Lys Asp Leu Val Ala Glu Ile Gln Lys Gln Gly Gln 325 330 335Asp Gln Trp Thr Tyr Gln Ile Tyr Gln Glu Pro Tyr Lys Asn Leu Lys 340 345 350Thr Gly Lys Tyr Ala Arg Lys Arg Ser Ala His Thr Asn Asp Val Arg 355 360 365Gln Leu Thr Glu Ala Val Gln Lys Ile Ala Leu Glu Ser Ile Val Ile 370 375 380Trp Gly Lys Ile Pro Lys Phe Arg Leu Pro Ile Gln Arg Glu Thr Trp385 390 395 400Glu Thr Trp Trp Thr Glu Tyr Trp Gln Ala Thr Trp Ile Pro Asp Trp 405 410 415Glu Phe Val Asn Thr Pro Pro Leu Val Lys Leu Trp Tyr Gln Leu Glu 420 425 430Lys Glu Pro Ile Ala Gly Ala Glu Thr Phe Tyr Val Ala Gly Ala Ser 435 440 445Asn Arg Glu Thr Lys Ile Gly Lys Ala Gly Tyr Val Thr Asp Lys Gly 450 455 460Arg Gln Lys Val Val Ser Leu Thr Glu Thr Thr Asn Gln Lys Ala Ala465 470 475 480Leu Gln Ala Ile Gln Leu Ala Leu Gln Asp Ser Gly Pro Glu Val Asn 485 490 495Ile Val Thr Ala Ser Gln Tyr Val Leu Gly Ile Ile Gln Ala Gln Pro 500 505 510Asp Arg Ser Glu Ser Glu Leu Val Asn Gln Ile Ile Glu Glu Leu Ile 515 520 525Lys Lys Glu Lys Val Tyr Leu Ser Trp Val Pro Ala His Lys Gly Ile 530 535 540Gly Gly Asn Glu Gln Val Asp Lys Leu Val Ser Ala Gly Ile Arg Lys545 550 555 560Ile Leu Phe Leu Asp Gly Ile Asp Lys Ala Gln Glu Glu His Glu Arg 565 570 575Tyr His Ser Asn Trp Arg Thr Met Ala Ser Asp Phe Asn Leu Pro Pro 580 585 590Ile Val Ala Lys Glu Ile Val Ala Asn Cys Asp Lys Cys Gln Leu Lys 595 600 605Gly Glu Ala Met His Gly Gln Val Asp Cys Ser Pro Gly Met Trp Gln 610 615 620Leu Ala Cys Thr His Leu Glu Gly Lys Ile Ile Ile Val Ala Val His625 630 635 640Val Ala Ser Gly Tyr Met Glu Ala Glu Val Ile Pro Ala Glu Thr Gly 645 650 655Gln Glu Thr Ala Tyr Tyr Ile Leu Lys Leu Ala Gly Arg Trp Pro Val 660 665 670Lys Val Val His Thr Ala Asn Gly Ser Asn Phe Thr Ser Thr Thr Val 675 680 685Lys Ala Ala Cys Trp Trp Ala Asn Val Thr Gln Glu Phe Gly Ile Pro 690 695 700Tyr Asn Pro Gln Ser Gln Gly Val Ile Ala Ser Met Asn Lys Glu Leu705 710 715 720Lys Lys Ile Ile Gly Gln Val Arg Glu Gln Ala Glu His Leu Lys Thr 725 730 735Ala Val Gln Met Ala Val Leu Ile His Asn Phe Lys Arg Arg Gly Gly 740 745 750Ile Gly Gly Tyr Ser Ala Gly Glu Arg Ile Val Asp Ile Ile Ala Thr 755 760 765Asp Ile Gln Thr Arg Glu Leu Gln Lys Gln Ile Ile Lys Ile Gln Asn 770 775 780Phe Arg Val Tyr Phe Arg Asp Ser Arg Asp Pro Val Trp Lys Gly Pro785 790 795 800Ala Lys Leu Leu Trp Lys Gly Glu Gly Ala Val Val Ile Gln Asp Asn 805 810 815Ser Glu Ile Lys Val Val Pro Arg Arg Lys Val Lys Ile Ile Arg Asp 820 825 830Tyr Gly Lys Gln Met Ala Gly Asp Asp Cys Val Ala Gly Arg Gln Asp 835 840 845Glu Asp Gln 85019508PRTArtificial SequenceSynthetic Construct (Mos3 gag) 19Met Gly Ala Arg Ala Ser Val Leu Ser Gly Gly Lys Leu Asp Ala Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys Lys Tyr Lys Leu Lys 20 25 30His Ile Val Trp Ala Ser Arg Glu Leu Asp Arg Phe Ala Leu Asn Pro 35 40 45Gly Leu Leu Glu Thr Ala Glu Gly Cys Gln Gln Ile Ile Glu Gln Leu 50 55 60Gln Pro Ala Leu Gln Thr Gly Ser Glu Glu Leu Lys Ser Leu Tyr Asn65 70 75 80Thr Val Ala Val Leu Tyr Cys Val His Gln Arg Ile Asp Val Lys Asp 85 90 95Thr Lys Glu Ala Leu Asp Lys Ile Glu Glu Ile Gln Asn Lys Ser Lys 100 105 110Gln Lys Thr Gln Gln Ala Ala Ala Asp Thr Gly Ser Ser Ser Lys Val 115 120 125Ser Gln Asn Tyr Pro Ile Val Gln Asn Ala Gln Gly Gln Met Val His 130 135 140Gln Ala Leu Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Val Glu145 150 155 160Glu Lys Gly Phe Asn Pro Glu Val Ile Pro Met Phe Ser Ala Leu Ala 165 170 175Glu Gly Ala Thr Pro Gln Asp Leu Asn Met Met Leu Asn Ile Val Gly 180 185 190Gly His Gln Ala Ala Met Gln Ile Leu Lys Asp Thr Ile Asn Glu Glu 195 200 205Ala Ala Asp Trp Asp Arg Leu His Pro Val His Ala Gly Pro Ile Pro 210 215 220Pro Gly Gln Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr225 230 235 240Ser Thr Pro Gln Glu Gln Ile Gly Trp Met Thr Ser Asn Pro Pro Val 245 250 255Pro Val Gly Glu Ile Tyr Lys Arg Trp Ile Ile Met Gly Leu Asn Lys 260 265 270Ile Val Arg Met Tyr Ser Pro Val Ser Ile Leu Asp Ile Lys Gln Gly 275 280 285Pro Lys Glu Ser Phe Arg Asp Tyr Val Asp Arg Phe Phe Lys Val Leu 290 295 300Arg Ala Glu Gln Ala Thr Gln Glu Val Lys Asn Trp Met Thr Glu Thr305 310 315 320Leu Leu Ile Gln Asn Ala Asn Pro Asp Cys Lys Ser Ile Leu Arg Ala 325 330 335Leu Gly Pro Gly Ala Ser Leu Glu Glu Met Met Thr Ala Cys Gln Gly 340 345 350Val Gly Gly Pro Ser His Lys Ala Arg Ile Leu Ala Glu Ala Met Ser 355 360 365Gln Ala Asn Asn Thr Asn Ile Met Met Gln Arg Gly Asn Phe Lys Gly 370 375 380Gln Lys Arg Ile Lys Cys Phe Asn Cys Gly Lys Glu Gly His Leu Ala385 390 395 400Arg Asn Cys Arg Ala Pro Arg Lys Arg Gly Cys Trp Lys Cys Gly Arg 405 410 415Glu Gly His Gln Met Lys Asp Cys Asn Glu Arg Gln Ala Asn Phe Leu 420 425 430Gly Lys Ile Trp Pro Ser Ser Lys Gly Arg Pro Gly Asn Phe Pro Gln 435 440 445Ser Arg Pro Glu Pro Thr Ala Pro Leu Glu Pro Thr Ala Pro Pro Ala 450 455 460Glu Pro Thr Ala Pro Pro Ala Glu Ser Phe Gly Phe Gly Glu Glu Ile465 470 475 480Thr Pro Ser Pro Lys Gln Glu Gln Lys Asp Arg Glu Pro Leu Thr Ser 485 490 495Leu Lys Ser Leu Phe Gly Ser Asp Pro Leu Leu Gln 500 50520206PRTArtificial SequenceSynthetic Construct ((Mos1 nef) (G to A to delete myristylation site)) 20Met Ala Gly Lys Trp Ser Lys Ser Ser Val Val Gly Trp Pro Ala Ile1 5 10 15Arg Glu Arg Met Arg Arg Ala Glu Pro Ala Ala Asp Gly Val Gly Ala 20 25 30Val Ser Arg Asp Leu Glu Lys His Gly Ala Ile Thr Ser Ser Asn Thr 35 40 45Ala Ala Asn Asn Ala Asp Cys Ala Trp Leu Glu Ala Gln Glu Glu Glu 50 55 60Glu Val Gly Phe Pro Val Arg Pro Gln Val Pro Leu Arg Pro Met Thr65 70 75 80Tyr Lys Gly Ala Leu Asp Leu Ser His Phe Leu Lys Glu Lys Gly Gly 85 90 95Leu Glu Gly Leu Ile Tyr Ser Gln Lys Arg Gln Asp Ile Leu Asp Leu 100 105 110Trp Val Tyr His Thr Gln Gly Tyr Phe Pro Asp Trp Gln Asn Tyr Thr 115 120 125Pro Gly Pro Gly Ile Arg Tyr Pro Leu Thr Phe Gly Trp Cys Phe Lys 130 135 140Leu Val Pro Val Glu Pro Glu Lys Ile Glu Glu Ala Asn Glu Gly Glu145 150 155 160Asn Asn Ser Leu Leu His Pro Met Ser Gln His Gly Met Asp Asp Pro 165 170 175Glu Lys Glu Val Leu Met Trp Lys Phe Asp Ser Arg Leu Ala Phe His 180 185 190His Met Ala Arg Glu Leu His Pro Glu Tyr Tyr Lys Asp Cys 195 200 20521206PRTArtificial SequenceSynthetic Construct ((Mos2 nef) (G to A to delete myristylation)) 21Met Ala Gly Lys Trp Ser Lys Ser Ser Ile Val Gly Trp Pro Ala Val1 5 10 15Arg Glu Arg Ile Arg Arg Ala Glu Pro Ala Ala Glu Gly Val Gly Ala 20 25 30Ala Ser Gln Asp Leu Asp Lys Tyr Gly Ala Leu Thr Ser Ser Asn Thr 35 40 45Ala Ala Thr Asn Ala Asp Cys Ala Trp Leu Glu Ala Gln Glu Asp Glu 50 55 60Glu Val Gly Phe Pro Val Lys Pro Gln Val Pro Leu Arg Pro Met Thr65 70 75 80Tyr Lys Ala Ala Phe Asp Leu Ser Phe Phe Leu Lys Glu Lys Gly Gly 85 90 95Leu Asp Gly Leu Ile Tyr Ser Lys Lys Arg Gln Glu Ile Leu Asp Leu 100 105 110Trp Val Tyr Asn Thr Gln Gly Phe Phe Pro Asp Trp Gln Asn Tyr Thr 115 120 125Pro Gly Pro Gly Val Arg Tyr Pro Leu Thr Phe Gly Trp Cys Phe Lys 130 135 140Leu Val Pro Val Asp Pro Arg Glu Val Glu Glu Ala Asn Lys Gly Glu145 150 155 160Asn Asn Cys Leu Leu His Pro Met Asn Leu His Gly Met Asp Asp Pro 165 170 175Glu Arg Glu Val Leu Val Trp Arg Phe Asp Ser Arg Leu Ala Phe His 180 185 190His Met Ala Arg Glu Lys His Pro Glu Tyr Tyr Lys Asn Cys 195 200 20522208PRTArtificial SequenceSynthetic Construct (Mos3 nef) 22Met Ala Gly Lys Trp Ser Lys Arg Ser Val Val Gly Trp Pro Ala Val1 5 10 15Arg Glu Arg Met Arg Arg Thr Glu Pro Ala Ala Glu Gly Val Gly Ala 20 25 30Val Ser Gln Asp Leu Asp Lys His Gly Ala Leu Thr Ser Ser Asn Thr 35 40 45Ala His Asn Asn Ala Asp Cys Ala Trp Leu Gln Ala Gln Glu Glu Glu 50 55 60Glu Glu Val Gly Phe Pro Val Arg Pro Gln Val Pro Val Arg Pro Met65 70 75 80Thr Tyr Lys Ala Ala Val Asp Leu Ser His Phe Leu Lys Glu Lys Gly 85 90 95Gly Leu Glu Gly Leu Ile His Ser Gln Lys Arg Gln Glu Ile Leu Asp 100 105 110Leu Trp Val Tyr His Thr Gln Gly Phe Phe Pro Asp Trp His Asn Tyr 115 120 125Thr Pro Gly Pro Gly Thr Arg Phe Pro Leu Thr Phe Gly Trp Cys Tyr 130 135 140Lys Leu Val Pro Val Asp Pro Lys Glu Val Glu Glu Ala Asn Glu Gly145 150 155 160Glu Asn Asn Cys Leu Leu His Pro Met Ser Gln His Gly Met Glu Asp 165 170 175Glu Asp Arg Glu Val Leu Lys Trp Lys Phe Asp Ser Ser Leu Ala Arg 180 185 190Arg His Met Ala Arg Glu Leu His Pro Glu Phe Tyr Lys Asp Cys Leu 195 200 20523705PRTArtificial SequenceSynthetic Construct (Mosaic gagnef1) 23Met Gly Ala Arg Ala Ser Val Leu Ser Gly Gly Glu Leu Asp Arg Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys Lys Tyr Arg Leu Lys 20 25 30His Ile Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Val Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Arg Gln Ile Leu Gly Gln Leu 50 55 60Gln Pro Ser Leu Gln Thr Gly Ser Glu Glu Leu Arg Ser Leu Tyr Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Gln Arg Ile Glu Ile Lys Asp 85 90 95Thr Lys Glu Ala Leu Glu Lys Ile Glu Glu Glu Gln Asn Lys Ser Lys 100 105 110Lys Lys Ala Gln Gln Ala Ala Ala Asp Thr Gly Asn Ser Ser Gln Val 115 120 125Ser Gln Asn Tyr Pro Ile Val Gln Asn Ile Gln Gly Gln Met Val His 130 135 140Gln Ala Ile Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Val Glu145 150 155 160Glu Lys Ala Phe Ser Pro Glu Val Ile Pro Met Phe Ser Ala Leu Ser 165 170 175Glu Gly Ala Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly 180 185 190Gly His Gln Ala Ala Met Gln Met Leu Lys Glu Thr Ile Asn Glu Glu 195 200 205Ala Ala Glu Trp Asp Arg Val His Pro Val His Ala Gly Pro Ile Ala 210 215 220Pro Gly Gln Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr225 230 235 240Ser Thr Leu Gln Glu Gln Ile Gly Trp Met Thr Asn Asn Pro Pro Ile 245 250 255Pro Val Gly Glu Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys 260 265 270Ile Val Arg Met Tyr Ser Pro Val Ser Ile

Leu Asp Ile Arg Gln Gly 275 280 285Pro Lys Glu Pro Phe Arg Asp Tyr Val Asp Arg Phe Tyr Lys Thr Leu 290 295 300Arg Ala Glu Gln Ala Ser Gln Asp Val Lys Asn Trp Met Thr Glu Thr305 310 315 320Leu Leu Val Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Lys Ala 325 330 335Leu Gly Pro Ala Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly 340 345 350Val Gly Gly Pro Gly His Lys Ala Arg Val Leu Ala Glu Ala Met Ser 355 360 365Gln Val Thr Asn Ser Ala Thr Ile Met Met Gln Arg Gly Asn Phe Arg 370 375 380Asn Gln Arg Lys Thr Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His385 390 395 400Ile Ala Lys Asn Cys Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys 405 410 415Gly Lys Glu Gly His Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn 420 425 430Phe Leu Gly Lys Ile Trp Pro Ser Asn Lys Gly Arg Pro Gly Asn Phe 435 440 445Leu Gln Asn Arg Pro Glu Pro Thr Ala Pro Pro Glu Glu Ser Phe Arg 450 455 460Phe Gly Glu Glu Thr Thr Thr Pro Ser Gln Lys Gln Glu Pro Ile Asp465 470 475 480Lys Glu Met Tyr Pro Leu Ala Ser Leu Lys Ser Leu Phe Gly Asn Asp 485 490 495Pro Ser Ser Gln Ala Gly Lys Trp Ser Lys Ser Ser Val Val Gly Trp 500 505 510Pro Ala Ile Arg Glu Arg Met Arg Arg Ala Glu Pro Ala Ala Asp Gly 515 520 525Val Gly Ala Val Ser Arg Asp Leu Glu Lys His Gly Ala Ile Thr Ser 530 535 540Ser Asn Thr Ala Ala Asn Asn Ala Asp Cys Ala Trp Leu Glu Ala Gln545 550 555 560Glu Glu Glu Glu Val Gly Phe Pro Val Arg Pro Gln Val Pro Leu Arg 565 570 575Pro Met Thr Tyr Lys Gly Ala Leu Asp Leu Ser His Phe Leu Lys Glu 580 585 590Lys Gly Gly Leu Glu Gly Leu Ile Tyr Ser Gln Lys Arg Gln Asp Ile 595 600 605Leu Asp Leu Trp Val Tyr His Thr Gln Gly Tyr Phe Pro Asp Trp Gln 610 615 620Asn Tyr Thr Pro Gly Pro Gly Ile Arg Tyr Pro Leu Thr Phe Gly Trp625 630 635 640Cys Phe Lys Leu Val Pro Val Glu Pro Glu Lys Ile Glu Glu Ala Asn 645 650 655Glu Gly Glu Asn Asn Ser Leu Leu His Pro Met Ser Gln His Gly Met 660 665 670Asp Asp Pro Glu Lys Glu Val Leu Met Trp Lys Phe Asp Ser Arg Leu 675 680 685Ala Phe His His Met Ala Arg Glu Leu His Pro Glu Tyr Tyr Lys Asp 690 695 700Cys70524696PRTArtificial SequenceSynthetic Construct (Mosaic gagnef2) 24Met Gly Ala Arg Ala Ser Ile Leu Arg Gly Gly Lys Leu Asp Lys Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys His Tyr Met Leu Lys 20 25 30His Leu Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Leu Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Lys Gln Ile Ile Lys Gln Leu 50 55 60Gln Pro Ala Leu Gln Thr Gly Thr Glu Glu Leu Arg Ser Leu Phe Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Ala Glu Ile Glu Val Arg Asp 85 90 95Thr Lys Glu Ala Leu Asp Lys Ile Glu Glu Glu Gln Asn Lys Ser Gln 100 105 110Gln Lys Thr Gln Gln Ala Lys Glu Ala Asp Gly Lys Val Ser Gln Asn 115 120 125Tyr Pro Ile Val Gln Asn Leu Gln Gly Gln Met Val His Gln Pro Ile 130 135 140Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Ile Glu Glu Lys Ala145 150 155 160Phe Ser Pro Glu Val Ile Pro Met Phe Thr Ala Leu Ser Glu Gly Ala 165 170 175Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly Gly His Gln 180 185 190Ala Ala Met Gln Met Leu Lys Asp Thr Ile Asn Glu Glu Ala Ala Glu 195 200 205Trp Asp Arg Leu His Pro Val His Ala Gly Pro Val Ala Pro Gly Gln 210 215 220Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr Ser Asn Leu225 230 235 240Gln Glu Gln Ile Ala Trp Met Thr Ser Asn Pro Pro Ile Pro Val Gly 245 250 255Asp Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys Ile Val Arg 260 265 270Met Tyr Ser Pro Thr Ser Ile Leu Asp Ile Lys Gln Gly Pro Lys Glu 275 280 285Pro Phe Arg Asp Tyr Val Asp Arg Phe Phe Lys Thr Leu Arg Ala Glu 290 295 300Gln Ala Thr Gln Asp Val Lys Asn Trp Met Thr Asp Thr Leu Leu Val305 310 315 320Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Arg Ala Leu Gly Pro 325 330 335Gly Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly Val Gly Gly 340 345 350Pro Ser His Lys Ala Arg Val Leu Ala Glu Ala Met Ser Gln Thr Asn 355 360 365Ser Thr Ile Leu Met Gln Arg Ser Asn Phe Lys Gly Ser Lys Arg Ile 370 375 380Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His Ile Ala Arg Asn Cys385 390 395 400Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys Gly Lys Glu Gly His 405 410 415Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn Phe Leu Gly Lys Ile 420 425 430Trp Pro Ser His Lys Gly Arg Pro Gly Asn Phe Leu Gln Ser Arg Pro 435 440 445Glu Pro Thr Ala Pro Pro Ala Glu Ser Phe Arg Phe Glu Glu Thr Thr 450 455 460Pro Ala Pro Lys Gln Glu Pro Lys Asp Arg Glu Pro Leu Thr Ser Leu465 470 475 480Arg Ser Leu Phe Gly Ser Asp Pro Leu Ser Gln Ala Gly Lys Trp Ser 485 490 495Lys Ser Ser Ile Val Gly Trp Pro Ala Val Arg Glu Arg Ile Arg Arg 500 505 510Ala Glu Pro Ala Ala Glu Gly Val Gly Ala Ala Ser Gln Asp Leu Asp 515 520 525Lys Tyr Gly Ala Leu Thr Ser Ser Asn Thr Ala Ala Thr Asn Ala Asp 530 535 540Cys Ala Trp Leu Glu Ala Gln Glu Asp Glu Glu Val Gly Phe Pro Val545 550 555 560Lys Pro Gln Val Pro Leu Arg Pro Met Thr Tyr Lys Ala Ala Phe Asp 565 570 575Leu Ser Phe Phe Leu Lys Glu Lys Gly Gly Leu Asp Gly Leu Ile Tyr 580 585 590Ser Lys Lys Arg Gln Glu Ile Leu Asp Leu Trp Val Tyr Asn Thr Gln 595 600 605Gly Phe Phe Pro Asp Trp Gln Asn Tyr Thr Pro Gly Pro Gly Val Arg 610 615 620Tyr Pro Leu Thr Phe Gly Trp Cys Phe Lys Leu Val Pro Val Asp Pro625 630 635 640Arg Glu Val Glu Glu Ala Asn Lys Gly Glu Asn Asn Cys Leu Leu His 645 650 655Pro Met Asn Leu His Gly Met Asp Asp Pro Glu Arg Glu Val Leu Val 660 665 670Trp Arg Phe Asp Ser Arg Leu Ala Phe His His Met Ala Arg Glu Lys 675 680 685His Pro Glu Tyr Tyr Lys Asn Cys 690 695251341PRTArtificial SequenceSynthetic Construct (Mosaic gag pol2 v3) 25Met Gly Ala Arg Ala Ser Ile Leu Arg Gly Gly Lys Leu Asp Lys Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys His Tyr Met Leu Lys 20 25 30His Leu Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Leu Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Lys Gln Ile Ile Lys Gln Leu 50 55 60Gln Pro Ala Leu Gln Thr Gly Thr Glu Glu Leu Arg Ser Leu Phe Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Ala Glu Ile Glu Val Arg Asp 85 90 95Thr Lys Glu Ala Leu Asp Lys Ile Glu Glu Glu Gln Asn Lys Ser Gln 100 105 110Gln Lys Thr Gln Gln Ala Lys Glu Ala Asp Gly Lys Val Ser Gln Asn 115 120 125Tyr Pro Ile Val Gln Asn Leu Gln Gly Gln Met Val His Gln Pro Ile 130 135 140Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Ile Glu Glu Lys Ala145 150 155 160Phe Ser Pro Glu Val Ile Pro Met Phe Thr Ala Leu Ser Glu Gly Ala 165 170 175Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly Gly His Gln 180 185 190Ala Ala Met Gln Met Leu Lys Asp Thr Ile Asn Glu Glu Ala Ala Glu 195 200 205Trp Asp Arg Leu His Pro Val His Ala Gly Pro Val Ala Pro Gly Gln 210 215 220Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr Ser Asn Leu225 230 235 240Gln Glu Gln Ile Ala Trp Met Thr Ser Asn Pro Pro Ile Pro Val Gly 245 250 255Asp Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys Ile Val Arg 260 265 270Met Tyr Ser Pro Thr Ser Ile Leu Asp Ile Lys Gln Gly Pro Lys Glu 275 280 285Pro Phe Arg Asp Tyr Val Asp Arg Phe Phe Lys Thr Leu Arg Ala Glu 290 295 300Gln Ala Thr Gln Asp Val Lys Asn Trp Met Thr Asp Thr Leu Leu Val305 310 315 320Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Arg Ala Leu Gly Pro 325 330 335Gly Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly Val Gly Gly 340 345 350Pro Ser His Lys Ala Arg Val Leu Ala Glu Ala Met Ser Gln Thr Asn 355 360 365Ser Thr Ile Leu Met Gln Arg Ser Asn Phe Lys Gly Ser Lys Arg Ile 370 375 380Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His Ile Ala Arg Asn Cys385 390 395 400Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys Gly Lys Glu Gly His 405 410 415Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn Phe Leu Gly Lys Ile 420 425 430Trp Pro Ser His Lys Gly Arg Pro Gly Asn Phe Leu Gln Ser Arg Pro 435 440 445Glu Pro Thr Ala Pro Pro Ala Glu Ser Phe Arg Phe Glu Glu Thr Thr 450 455 460Pro Ala Pro Lys Gln Glu Pro Lys Asp Arg Glu Pro Leu Thr Ser Leu465 470 475 480Arg Ser Leu Phe Gly Ser Asp Pro Leu Ser Gln Met Ala Pro Ile Ser 485 490 495Pro Ile Glu Thr Val Pro Val Lys Leu Lys Pro Gly Met Asp Gly Pro 500 505 510Lys Val Lys Gln Trp Pro Leu Thr Glu Glu Lys Ile Lys Ala Leu Val 515 520 525Glu Ile Cys Thr Glu Met Glu Lys Glu Gly Lys Ile Ser Lys Ile Gly 530 535 540Pro Glu Asn Pro Tyr Asn Thr Pro Ile Phe Ala Ile Lys Lys Lys Asp545 550 555 560Ser Thr Lys Trp Arg Lys Leu Val Asp Phe Arg Glu Leu Asn Lys Arg 565 570 575Thr Gln Asp Phe Trp Glu Val Gln Leu Gly Ile Pro His Pro Ala Gly 580 585 590Leu Lys Lys Lys Lys Ser Val Thr Val Leu Ala Val Gly Asp Ala Tyr 595 600 605Phe Ser Val Pro Leu Asp Glu Asp Phe Arg Lys Tyr Thr Ala Phe Thr 610 615 620Ile Pro Ser Ile Asn Asn Glu Thr Pro Gly Ile Arg Tyr Gln Tyr Asn625 630 635 640Val Leu Pro Gln Gly Trp Lys Gly Ser Pro Ala Ile Phe Gln Ser Ser 645 650 655Met Thr Lys Ile Leu Glu Pro Phe Arg Lys Gln Asn Pro Asp Ile Val 660 665 670Ile Tyr Gln Tyr Met Ala Ala Leu Tyr Val Gly Ser Asp Leu Glu Ile 675 680 685Gly Gln His Arg Thr Lys Ile Glu Glu Leu Arg Gln His Leu Leu Arg 690 695 700Trp Gly Phe Thr Thr Pro Asp Lys Lys His Gln Lys Glu Pro Pro Phe705 710 715 720Leu Trp Met Gly Tyr Glu Leu His Pro Asp Lys Trp Thr Val Gln Pro 725 730 735Ile Val Leu Pro Glu Lys Asp Ser Trp Thr Val Asn Asp Ile Gln Lys 740 745 750Leu Val Gly Lys Leu Asn Trp Ala Ser Gln Ile Tyr Ala Gly Ile Lys 755 760 765Val Lys Gln Leu Cys Lys Leu Leu Arg Gly Thr Lys Ala Leu Thr Glu 770 775 780Val Val Pro Leu Thr Glu Glu Ala Glu Leu Glu Leu Ala Glu Asn Arg785 790 795 800Glu Ile Leu Lys Glu Pro Val His Gly Val Tyr Tyr Asp Pro Ser Lys 805 810 815Asp Leu Ile Ala Glu Ile Gln Lys Gln Gly Gln Gly Gln Trp Thr Tyr 820 825 830Gln Ile Tyr Gln Glu Pro Phe Lys Asn Leu Lys Thr Gly Lys Tyr Ala 835 840 845Arg Met Arg Gly Ala His Thr Asn Asp Val Lys Gln Leu Thr Glu Ala 850 855 860Val Gln Lys Ile Ala Thr Glu Ser Ile Val Ile Trp Gly Lys Thr Pro865 870 875 880Lys Phe Lys Leu Pro Ile Gln Lys Glu Thr Trp Glu Ala Trp Trp Thr 885 890 895Glu Tyr Trp Gln Ala Thr Trp Ile Pro Glu Trp Glu Phe Val Asn Thr 900 905 910Pro Pro Leu Val Lys Leu Trp Tyr Gln Leu Glu Lys Glu Pro Ile Val 915 920 925Gly Ala Glu Thr Phe Tyr Val Ala Gly Ala Ala Asn Arg Glu Thr Lys 930 935 940Leu Gly Lys Ala Gly Tyr Val Thr Asp Arg Gly Arg Gln Lys Val Val945 950 955 960Ser Leu Thr Asp Thr Thr Asn Gln Lys Thr Ala Leu Gln Ala Ile His 965 970 975Leu Ala Leu Gln Asp Ser Gly Leu Glu Val Asn Ile Val Thr Ala Ser 980 985 990Gln Tyr Ala Leu Gly Ile Ile Gln Ala Gln Pro Asp Lys Ser Glu Ser 995 1000 1005Glu Leu Val Ser Gln Ile Ile Glu Gln Leu Ile Lys Lys Glu Lys 1010 1015 1020Val Tyr Leu Ala Trp Val Pro Ala His Lys Gly Ile Gly Gly Asn 1025 1030 1035Glu Gln Val Asp Lys Leu Val Ser Arg Gly Ile Arg Lys Val Leu 1040 1045 1050Phe Leu Asp Gly Ile Asp Lys Ala Gln Glu Glu His Glu Lys Tyr 1055 1060 1065His Ser Asn Trp Arg Ala Met Ala Ser Glu Phe Asn Leu Pro Pro 1070 1075 1080Ile Val Ala Lys Glu Ile Val Ala Ser Cys Asp Lys Cys Gln Leu 1085 1090 1095Lys Gly Glu Ala Ile His Gly Gln Val Asp Cys Ser Pro Gly Ile 1100 1105 1110Trp Gln Leu Ala Cys Thr His Leu Glu Gly Lys Val Ile Leu Val 1115 1120 1125Ala Val His Val Ala Ser Gly Tyr Ile Glu Ala Glu Val Ile Pro 1130 1135 1140Ala Glu Thr Gly Gln Glu Thr Ala Tyr Phe Leu Leu Lys Leu Ala 1145 1150 1155Gly Arg Trp Pro Val Lys Thr Ile His Thr Ala Asn Gly Ser Asn 1160 1165 1170Phe Thr Ser Ala Thr Val Lys Ala Ala Cys Trp Trp Ala Gly Ile 1175 1180 1185Lys Gln Glu Phe Gly Ile Pro Tyr Asn Pro Gln Ser Gln Gly Val 1190 1195 1200Val Ala Ser Ile Asn Lys Glu Leu Lys Lys Ile Ile Gly Gln Val 1205 1210 1215Arg Asp Gln Ala Glu His Leu Lys Thr Ala Val Gln Met Ala Val 1220 1225 1230Phe Ile His Asn Phe Lys Arg Lys Gly Gly Ile Gly Glu Tyr Ser 1235 1240 1245Ala Gly Glu Arg Ile Val Asp Ile Ile Ala Ser Asp Ile Gln Thr 1250 1255 1260Lys Glu Leu Gln Lys Gln Ile Thr Lys Ile Gln Asn Phe Arg Val 1265 1270 1275Tyr Tyr Arg Asp Ser Arg Asp Pro Leu Trp Lys Gly Pro Ala Lys 1280 1285 1290Leu Leu Trp Lys Gly Glu Gly Ala Val Val Ile Gln Asp Asn Ser 1295 1300 1305Asp Ile Lys Val Val Pro Arg Arg Lys Ala Lys Ile Ile Arg Asp 1310 1315 1320Tyr Gly Lys Gln Met

Ala Gly Asp Asp Cys Val Ala Ser Arg Gln 1325 1330 1335Asp Glu Asp 1340261359PRTArtificial SequenceSynthetic Construct (Mos3 gag-pol v3) 26Met Gly Ala Arg Ala Ser Val Leu Ser Gly Gly Lys Leu Asp Ala Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys Lys Tyr Lys Leu Lys 20 25 30His Ile Val Trp Ala Ser Arg Glu Leu Asp Arg Phe Ala Leu Asn Pro 35 40 45Gly Leu Leu Glu Thr Ala Glu Gly Cys Gln Gln Ile Ile Glu Gln Leu 50 55 60Gln Pro Ala Leu Gln Thr Gly Ser Glu Glu Leu Lys Ser Leu Tyr Asn65 70 75 80Thr Val Ala Val Leu Tyr Cys Val His Gln Arg Ile Asp Val Lys Asp 85 90 95Thr Lys Glu Ala Leu Asp Lys Ile Glu Glu Ile Gln Asn Lys Ser Lys 100 105 110Gln Lys Thr Gln Gln Ala Ala Ala Asp Thr Gly Ser Ser Ser Lys Val 115 120 125Ser Gln Asn Tyr Pro Ile Val Gln Asn Ala Gln Gly Gln Met Val His 130 135 140Gln Ala Leu Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Val Glu145 150 155 160Glu Lys Gly Phe Asn Pro Glu Val Ile Pro Met Phe Ser Ala Leu Ala 165 170 175Glu Gly Ala Thr Pro Gln Asp Leu Asn Met Met Leu Asn Ile Val Gly 180 185 190Gly His Gln Ala Ala Met Gln Ile Leu Lys Asp Thr Ile Asn Glu Glu 195 200 205Ala Ala Asp Trp Asp Arg Leu His Pro Val His Ala Gly Pro Ile Pro 210 215 220Pro Gly Gln Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr225 230 235 240Ser Thr Pro Gln Glu Gln Ile Gly Trp Met Thr Ser Asn Pro Pro Val 245 250 255Pro Val Gly Glu Ile Tyr Lys Arg Trp Ile Ile Met Gly Leu Asn Lys 260 265 270Ile Val Arg Met Tyr Ser Pro Val Ser Ile Leu Asp Ile Lys Gln Gly 275 280 285Pro Lys Glu Ser Phe Arg Asp Tyr Val Asp Arg Phe Phe Lys Val Leu 290 295 300Arg Ala Glu Gln Ala Thr Gln Glu Val Lys Asn Trp Met Thr Glu Thr305 310 315 320Leu Leu Ile Gln Asn Ala Asn Pro Asp Cys Lys Ser Ile Leu Arg Ala 325 330 335Leu Gly Pro Gly Ala Ser Leu Glu Glu Met Met Thr Ala Cys Gln Gly 340 345 350Val Gly Gly Pro Ser His Lys Ala Arg Ile Leu Ala Glu Ala Met Ser 355 360 365Gln Ala Asn Asn Thr Asn Ile Met Met Gln Arg Gly Asn Phe Lys Gly 370 375 380Gln Lys Arg Ile Lys Cys Phe Asn Cys Gly Lys Glu Gly His Leu Ala385 390 395 400Arg Asn Cys Arg Ala Pro Arg Lys Arg Gly Cys Trp Lys Cys Gly Arg 405 410 415Glu Gly His Gln Met Lys Asp Cys Asn Glu Arg Gln Ala Asn Phe Leu 420 425 430Gly Lys Ile Trp Pro Ser Ser Lys Gly Arg Pro Gly Asn Phe Pro Gln 435 440 445Ser Arg Pro Glu Pro Thr Ala Pro Leu Glu Pro Thr Ala Pro Pro Ala 450 455 460Glu Pro Thr Ala Pro Pro Ala Glu Ser Phe Gly Phe Gly Glu Glu Ile465 470 475 480Thr Pro Ser Pro Lys Gln Glu Gln Lys Asp Arg Glu Pro Leu Thr Ser 485 490 495Leu Lys Ser Leu Phe Gly Ser Asp Pro Leu Leu Gln Met Ala Pro Ile 500 505 510Ser Pro Ile Asp Thr Val Pro Val Thr Leu Lys Pro Gly Met Asp Gly 515 520 525Pro Lys Ile Lys Gln Trp Pro Leu Thr Glu Glu Lys Ile Lys Ala Leu 530 535 540Thr Glu Ile Cys Thr Glu Met Glu Lys Glu Gly Lys Ile Ser Arg Ile545 550 555 560Gly Pro Glu Asn Pro Tyr Asn Thr Pro Val Phe Ala Ile Lys Lys Lys 565 570 575Asn Ser Thr Arg Trp Arg Lys Leu Val Asp Phe Arg Glu Leu Asn Lys 580 585 590Lys Thr Gln Asp Phe Trp Glu Val Gln Leu Gly Ile Pro His Pro Ala 595 600 605Gly Leu Lys Lys Lys Arg Ser Val Thr Val Leu Ala Val Gly Asp Ala 610 615 620Tyr Phe Ser Val Pro Leu Asp Lys Asp Phe Arg Lys Tyr Thr Ala Phe625 630 635 640Thr Ile Pro Ser Val Asn Asn Glu Thr Pro Gly Val Arg Tyr Gln Tyr 645 650 655Asn Val Leu Pro Gln Gly Trp Lys Gly Ser Pro Ala Ile Phe Gln Cys 660 665 670Ser Met Thr Lys Ile Leu Glu Pro Phe Arg Ala Gln Asn Pro Glu Ile 675 680 685Val Ile Tyr Gln Tyr Val Ala Ala Leu Tyr Val Gly Ser Asp Leu Glu 690 695 700Ile Glu Gln His Arg Thr Lys Ile Glu Glu Leu Arg Ala His Leu Leu705 710 715 720Ser Trp Gly Phe Thr Thr Pro Asp Lys Lys His Gln Arg Glu Pro Pro 725 730 735Phe Leu Trp Met Gly Tyr Glu Leu His Pro Asp Arg Trp Thr Val Gln 740 745 750Pro Ile Glu Leu Pro Glu Lys Glu Ser Trp Thr Val Asn Asp Ile Gln 755 760 765Lys Leu Val Gly Lys Leu Asn Trp Ala Ser Gln Ile Tyr Pro Gly Ile 770 775 780Lys Val Lys Gln Leu Cys Arg Leu Leu Arg Gly Ala Lys Ala Leu Thr785 790 795 800Glu Val Ile Pro Leu Thr Lys Glu Ala Glu Leu Glu Leu Ala Glu Asn 805 810 815Arg Glu Ile Leu Arg Glu Pro Val His Gly Val Tyr Tyr Asp Pro Ser 820 825 830Lys Asp Leu Val Ala Glu Ile Gln Lys Gln Gly Gln Asp Gln Trp Thr 835 840 845Tyr Gln Ile Tyr Gln Glu Pro Tyr Lys Asn Leu Lys Thr Gly Lys Tyr 850 855 860Ala Arg Lys Arg Ser Ala His Thr Asn Asp Val Arg Gln Leu Thr Glu865 870 875 880Ala Val Gln Lys Ile Ala Leu Glu Ser Ile Val Ile Trp Gly Lys Ile 885 890 895Pro Lys Phe Arg Leu Pro Ile Gln Arg Glu Thr Trp Glu Thr Trp Trp 900 905 910Thr Glu Tyr Trp Gln Ala Thr Trp Ile Pro Asp Trp Glu Phe Val Asn 915 920 925Thr Pro Pro Leu Val Lys Leu Trp Tyr Gln Leu Glu Lys Glu Pro Ile 930 935 940Ala Gly Ala Glu Thr Phe Tyr Val Ala Gly Ala Ser Asn Arg Glu Thr945 950 955 960Lys Ile Gly Lys Ala Gly Tyr Val Thr Asp Lys Gly Arg Gln Lys Val 965 970 975Val Ser Leu Thr Glu Thr Thr Asn Gln Lys Ala Ala Leu Gln Ala Ile 980 985 990Gln Leu Ala Leu Gln Asp Ser Gly Pro Glu Val Asn Ile Val Thr Ala 995 1000 1005Ser Gln Tyr Val Leu Gly Ile Ile Gln Ala Gln Pro Asp Arg Ser 1010 1015 1020Glu Ser Glu Leu Val Asn Gln Ile Ile Glu Glu Leu Ile Lys Lys 1025 1030 1035Glu Lys Val Tyr Leu Ser Trp Val Pro Ala His Lys Gly Ile Gly 1040 1045 1050Gly Asn Glu Gln Val Asp Lys Leu Val Ser Ala Gly Ile Arg Lys 1055 1060 1065Ile Leu Phe Leu Asp Gly Ile Asp Lys Ala Gln Glu Glu His Glu 1070 1075 1080Arg Tyr His Ser Asn Trp Arg Thr Met Ala Ser Asp Phe Asn Leu 1085 1090 1095Pro Pro Ile Val Ala Lys Glu Ile Val Ala Asn Cys Asp Lys Cys 1100 1105 1110Gln Leu Lys Gly Glu Ala Met His Gly Gln Val Asp Cys Ser Pro 1115 1120 1125Gly Met Trp Gln Leu Ala Cys Thr His Leu Glu Gly Lys Ile Ile 1130 1135 1140Ile Val Ala Val His Val Ala Ser Gly Tyr Met Glu Ala Glu Val 1145 1150 1155Ile Pro Ala Glu Thr Gly Gln Glu Thr Ala Tyr Tyr Ile Leu Lys 1160 1165 1170Leu Ala Gly Arg Trp Pro Val Lys Val Val His Thr Ala Asn Gly 1175 1180 1185Ser Asn Phe Thr Ser Thr Thr Val Lys Ala Ala Cys Trp Trp Ala 1190 1195 1200Asn Val Thr Gln Glu Phe Gly Ile Pro Tyr Asn Pro Gln Ser Gln 1205 1210 1215Gly Val Ile Ala Ser Met Asn Lys Glu Leu Lys Lys Ile Ile Gly 1220 1225 1230Gln Val Arg Glu Gln Ala Glu His Leu Lys Thr Ala Val Gln Met 1235 1240 1245Ala Val Leu Ile His Asn Phe Lys Arg Arg Gly Gly Ile Gly Gly 1250 1255 1260Tyr Ser Ala Gly Glu Arg Ile Val Asp Ile Ile Ala Thr Asp Ile 1265 1270 1275Gln Thr Arg Glu Leu Gln Lys Gln Ile Ile Lys Ile Gln Asn Phe 1280 1285 1290Arg Val Tyr Phe Arg Asp Ser Arg Asp Pro Val Trp Lys Gly Pro 1295 1300 1305Ala Lys Leu Leu Trp Lys Gly Glu Gly Ala Val Val Ile Gln Asp 1310 1315 1320Asn Ser Glu Ile Lys Val Val Pro Arg Arg Lys Val Lys Ile Ile 1325 1330 1335Arg Asp Tyr Gly Lys Gln Met Ala Gly Asp Asp Cys Val Ala Gly 1340 1345 1350Arg Gln Asp Glu Asp Gln 1355271497PRTArtificial SequenceSynthetic Construct (Mosaic gagpol1 v4) 27Met Gly Ala Arg Ala Ser Val Leu Ser Gly Gly Glu Leu Asp Arg Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys Lys Tyr Arg Leu Lys 20 25 30His Ile Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Val Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Arg Gln Ile Leu Gly Gln Leu 50 55 60Gln Pro Ser Leu Gln Thr Gly Ser Glu Glu Leu Arg Ser Leu Tyr Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Gln Arg Ile Glu Ile Lys Asp 85 90 95Thr Lys Glu Ala Leu Glu Lys Ile Glu Glu Glu Gln Asn Lys Ser Lys 100 105 110Lys Lys Ala Gln Gln Ala Ala Ala Asp Thr Gly Asn Ser Ser Gln Val 115 120 125Ser Gln Asn Tyr Pro Ile Val Gln Asn Ile Gln Gly Gln Met Val His 130 135 140Gln Ala Ile Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Val Glu145 150 155 160Glu Lys Ala Phe Ser Pro Glu Val Ile Pro Met Phe Ser Ala Leu Ser 165 170 175Glu Gly Ala Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly 180 185 190Gly His Gln Ala Ala Met Gln Met Leu Lys Glu Thr Ile Asn Glu Glu 195 200 205Ala Ala Glu Trp Asp Arg Val His Pro Val His Ala Gly Pro Ile Ala 210 215 220Pro Gly Gln Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr225 230 235 240Ser Thr Leu Gln Glu Gln Ile Gly Trp Met Thr Asn Asn Pro Pro Ile 245 250 255Pro Val Gly Glu Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys 260 265 270Ile Val Arg Met Tyr Ser Pro Val Ser Ile Leu Asp Ile Arg Gln Gly 275 280 285Pro Lys Glu Pro Phe Arg Asp Tyr Val Asp Arg Phe Tyr Lys Thr Leu 290 295 300Arg Ala Glu Gln Ala Ser Gln Asp Val Lys Asn Trp Met Thr Glu Thr305 310 315 320Leu Leu Val Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Lys Ala 325 330 335Leu Gly Pro Ala Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly 340 345 350Val Gly Gly Pro Gly His Lys Ala Arg Val Leu Ala Glu Ala Met Ser 355 360 365Gln Val Thr Asn Ser Ala Thr Ile Met Met Gln Arg Gly Asn Phe Arg 370 375 380Asn Gln Arg Lys Thr Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His385 390 395 400Ile Ala Lys Asn Cys Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys 405 410 415Gly Lys Glu Gly His Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn 420 425 430Phe Leu Gly Lys Ile Trp Pro Ser Asn Lys Gly Arg Pro Gly Asn Phe 435 440 445Leu Gln Asn Arg Pro Glu Pro Thr Ala Pro Pro Glu Glu Ser Phe Arg 450 455 460Phe Gly Glu Glu Thr Thr Thr Pro Ser Gln Lys Gln Glu Pro Ile Asp465 470 475 480Lys Glu Met Tyr Pro Leu Ala Ser Leu Lys Ser Leu Phe Gly Asn Asp 485 490 495Pro Ser Ser Gln Arg Glu Asn Leu Ala Phe Gln Gln Gly Glu Ala Arg 500 505 510Glu Phe Pro Ser Glu Gln Thr Arg Ala Asn Ser Pro Thr Ser Arg Glu 515 520 525Leu Gln Val Arg Gly Asp Asn Pro His Ser Glu Ala Gly Ala Glu Arg 530 535 540Gln Gly Thr Leu Asn Phe Pro Gln Ile Thr Leu Trp Gln Arg Pro Leu545 550 555 560Val Ser Ile Lys Val Gly Gly Gln Ile Arg Glu Ala Leu Leu Ala Thr 565 570 575Gly Ala Asp Asp Thr Val Leu Glu Asp Ile Asn Leu Pro Gly Lys Trp 580 585 590Lys Pro Lys Met Ile Gly Gly Ile Gly Gly Phe Ile Lys Val Gly Gln 595 600 605Tyr Asp Gln Ile Leu Ile Glu Ile Cys Gly Lys Lys Ala Ile Gly Thr 610 615 620Val Leu Val Gly Pro Thr Pro Val Asn Ile Ile Gly Arg Asn Met Leu625 630 635 640Thr Gln Leu Gly Cys Thr Leu Asn Phe Pro Ile Ser Pro Ile Glu Thr 645 650 655Val Pro Val Lys Leu Lys Pro Gly Met Asp Gly Pro Arg Val Lys Gln 660 665 670Trp Pro Leu Thr Glu Glu Lys Ile Lys Ala Leu Thr Ala Ile Cys Glu 675 680 685Glu Met Glu Lys Glu Gly Lys Ile Thr Lys Ile Gly Pro Glu Asn Pro 690 695 700Tyr Asn Thr Pro Val Phe Ala Ile Lys Lys Lys Asp Ser Thr Lys Trp705 710 715 720Arg Lys Leu Val Asp Phe Arg Glu Leu Asn Lys Arg Thr Gln Asp Phe 725 730 735Trp Glu Val Gln Leu Gly Ile Pro His Pro Ala Gly Leu Lys Lys Lys 740 745 750Lys Ser Val Thr Val Leu Asp Val Gly Asp Ala Tyr Phe Ser Val Pro 755 760 765Leu Asp Glu Gly Phe Arg Lys Tyr Thr Ala Phe Thr Ile Pro Ser Thr 770 775 780Asn Asn Glu Thr Pro Gly Ile Arg Tyr Gln Tyr Asn Val Leu Pro Gln785 790 795 800Gly Trp Lys Gly Ser Pro Ala Ile Phe Gln Cys Ser Met Thr Arg Ile 805 810 815Leu Glu Pro Phe Arg Ala Lys Asn Pro Glu Ile Val Ile Tyr Gln Tyr 820 825 830Met Asp His Leu Tyr Val Gly Ser Asp Leu Glu Ile Gly Gln His Arg 835 840 845Ala Lys Ile Glu Glu Leu Arg Glu His Leu Leu Lys Trp Gly Phe Thr 850 855 860Thr Pro Asp Lys Lys His Gln Lys Glu Pro Pro Phe Leu Trp Met Gly865 870 875 880Tyr Glu Leu His Pro Asp Lys Trp Thr Val Gln Pro Ile Gln Leu Pro 885 890 895Glu Lys Asp Ser Trp Thr Val Asn Asp Ile Gln Lys Leu Val Gly Lys 900 905 910Leu Asn Trp Ala Ser Gln Ile Tyr Pro Gly Ile Lys Val Arg Gln Leu 915 920 925Cys Lys Leu Leu Arg Gly Ala Lys Ala Leu Thr Asp Ile Val Pro Leu 930 935 940Thr Glu Glu Ala Glu Leu Glu Leu Ala Glu Asn Arg Glu Ile Leu Lys945 950 955 960Glu Pro Val His Gly Val Tyr Tyr Asp Pro Ser Lys Asp Leu Ile Ala 965 970 975Glu Ile Gln Lys Gln Gly His Asp Gln Trp Thr Tyr Gln Ile Tyr Gln 980 985 990Glu Pro Phe Lys Asn Leu Lys Thr Gly Lys Tyr Ala Lys Met Arg Thr 995 1000 1005Ala His Thr Asn Asp Val Lys Gln Leu Thr Glu Ala Val Gln Lys 1010 1015 1020Ile Ala Met Glu Ser Ile Val Ile Trp Gly Lys Thr Pro Lys Phe 1025 1030 1035Arg Leu Pro Ile Gln Lys Glu Thr Trp Glu Thr Trp Trp Thr Asp 1040 1045 1050Tyr Trp Gln Ala Thr Trp Ile Pro Glu Trp Glu Phe Val Asn Thr 1055 1060 1065Pro Pro Leu Val Lys Leu Trp Tyr Gln Leu

Glu Lys Asp Pro Ile 1070 1075 1080Ala Gly Val Glu Thr Phe Tyr Val Asp Gly Ala Ala Asn Arg Glu 1085 1090 1095Thr Lys Leu Gly Lys Ala Gly Tyr Val Thr Asp Arg Gly Arg Gln 1100 1105 1110Lys Ile Val Ser Leu Thr Glu Thr Thr Asn Gln Lys Thr Glu Leu 1115 1120 1125Gln Ala Ile Tyr Leu Ala Leu Gln Asp Ser Gly Ser Glu Val Asn 1130 1135 1140Ile Val Thr Asp Ser Gln Tyr Ala Leu Gly Ile Ile Gln Ala Gln 1145 1150 1155Pro Asp Lys Ser Glu Ser Glu Leu Val Asn Gln Ile Ile Glu Gln 1160 1165 1170Leu Ile Lys Lys Glu Arg Val Tyr Leu Ser Trp Val Pro Ala His 1175 1180 1185Lys Gly Ile Gly Gly Asn Glu Gln Val Asp Lys Leu Val Ser Ser 1190 1195 1200Gly Ile Arg Lys Val Leu Phe Leu Asp Gly Ile Asp Lys Ala Gln 1205 1210 1215Glu Glu His Glu Lys Tyr His Ser Asn Trp Arg Ala Met Ala Ser 1220 1225 1230Asp Phe Asn Leu Pro Pro Val Val Ala Lys Glu Ile Val Ala Ser 1235 1240 1245Cys Asp Gln Cys Gln Leu Lys Gly Glu Ala Met His Gly Gln Val 1250 1255 1260Asp Cys Ser Pro Gly Ile Trp Gln Leu Ala Cys Thr His Leu Glu 1265 1270 1275Gly Lys Ile Ile Leu Val Ala Val His Val Ala Ser Gly Tyr Ile 1280 1285 1290Glu Ala Glu Val Ile Pro Ala Glu Thr Gly Gln Glu Thr Ala Tyr 1295 1300 1305Phe Ile Leu Lys Leu Ala Gly Arg Trp Pro Val Lys Val Ile His 1310 1315 1320Thr Asp Asn Gly Ser Asn Phe Thr Ser Ala Ala Val Lys Ala Ala 1325 1330 1335Cys Trp Trp Ala Gly Ile Gln Gln Glu Phe Gly Ile Pro Tyr Asn 1340 1345 1350Pro Gln Ser Gln Gly Val Val Glu Ser Met Asn Lys Glu Leu Lys 1355 1360 1365Lys Ile Ile Gly Gln Val Arg Asp Gln Ala Glu His Leu Lys Thr 1370 1375 1380Ala Val Gln Met Ala Val Phe Ile His Asn Phe Lys Arg Lys Gly 1385 1390 1395Gly Ile Gly Gly Tyr Ser Ala Gly Glu Arg Ile Ile Asp Ile Ile 1400 1405 1410Ala Thr Asp Ile Gln Thr Lys Glu Leu Gln Lys Gln Ile Ile Lys 1415 1420 1425Ile Gln Asn Phe Arg Val Tyr Tyr Arg Asp Ser Arg Asp Pro Ile 1430 1435 1440Trp Lys Gly Pro Ala Lys Leu Leu Trp Lys Gly Glu Gly Ala Val 1445 1450 1455Val Ile Gln Asp Asn Ser Asp Ile Lys Val Val Pro Arg Arg Lys 1460 1465 1470Val Lys Ile Ile Lys Asp Tyr Gly Lys Gln Met Ala Gly Ala Asp 1475 1480 1485Cys Val Ala Gly Arg Gln Asp Glu Asp 1490 1495281492PRTArtificial SequenceSynthetic Construct (Mosaic gagpol2 v4) 28Met Gly Ala Arg Ala Ser Ile Leu Arg Gly Gly Lys Leu Asp Lys Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys His Tyr Met Leu Lys 20 25 30His Leu Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Leu Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Lys Gln Ile Ile Lys Gln Leu 50 55 60Gln Pro Ala Leu Gln Thr Gly Thr Glu Glu Leu Arg Ser Leu Phe Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Ala Glu Ile Glu Val Arg Asp 85 90 95Thr Lys Glu Ala Leu Asp Lys Ile Glu Glu Glu Gln Asn Lys Ser Gln 100 105 110Gln Lys Thr Gln Gln Ala Lys Glu Ala Asp Gly Lys Val Ser Gln Asn 115 120 125Tyr Pro Ile Val Gln Asn Leu Gln Gly Gln Met Val His Gln Pro Ile 130 135 140Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Ile Glu Glu Lys Ala145 150 155 160Phe Ser Pro Glu Val Ile Pro Met Phe Thr Ala Leu Ser Glu Gly Ala 165 170 175Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly Gly His Gln 180 185 190Ala Ala Met Gln Met Leu Lys Asp Thr Ile Asn Glu Glu Ala Ala Glu 195 200 205Trp Asp Arg Leu His Pro Val His Ala Gly Pro Val Ala Pro Gly Gln 210 215 220Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr Ser Asn Leu225 230 235 240Gln Glu Gln Ile Ala Trp Met Thr Ser Asn Pro Pro Ile Pro Val Gly 245 250 255Asp Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys Ile Val Arg 260 265 270Met Tyr Ser Pro Thr Ser Ile Leu Asp Ile Lys Gln Gly Pro Lys Glu 275 280 285Pro Phe Arg Asp Tyr Val Asp Arg Phe Phe Lys Thr Leu Arg Ala Glu 290 295 300Gln Ala Thr Gln Asp Val Lys Asn Trp Met Thr Asp Thr Leu Leu Val305 310 315 320Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Arg Ala Leu Gly Pro 325 330 335Gly Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly Val Gly Gly 340 345 350Pro Ser His Lys Ala Arg Val Leu Ala Glu Ala Met Ser Gln Thr Asn 355 360 365Ser Thr Ile Leu Met Gln Arg Ser Asn Phe Lys Gly Ser Lys Arg Ile 370 375 380Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His Ile Ala Arg Asn Cys385 390 395 400Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys Gly Lys Glu Gly His 405 410 415Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn Phe Leu Gly Lys Ile 420 425 430Trp Pro Ser His Lys Gly Arg Pro Gly Asn Phe Leu Gln Ser Arg Pro 435 440 445Glu Pro Thr Ala Pro Pro Ala Glu Ser Phe Arg Phe Glu Glu Thr Thr 450 455 460Pro Ala Pro Lys Gln Glu Pro Lys Asp Arg Glu Pro Leu Thr Ser Leu465 470 475 480Arg Ser Leu Phe Gly Ser Asp Pro Leu Ser Gln Arg Glu Asn Leu Ala 485 490 495Phe Pro Gln Gly Lys Ala Arg Glu Phe Ser Ser Glu Gln Thr Arg Ala 500 505 510Asn Ser Pro Thr Arg Arg Glu Leu Gln Val Trp Gly Arg Asp Asn Asn 515 520 525Ser Leu Ser Glu Ala Gly Ala Asp Arg Gln Gly Thr Val Ser Phe Ser 530 535 540Phe Pro Gln Ile Thr Leu Trp Gln Arg Pro Leu Val Thr Ile Lys Ile545 550 555 560Gly Gly Gln Leu Lys Glu Ala Leu Leu Ala Thr Gly Ala Asp Asp Thr 565 570 575Val Leu Glu Glu Met Asn Leu Pro Gly Arg Trp Lys Pro Lys Met Ile 580 585 590Gly Gly Ile Gly Gly Phe Ile Lys Val Gly Gln Tyr Asp Gln Ile Pro 595 600 605Ile Glu Ile Cys Gly His Lys Ala Ile Gly Thr Val Leu Val Gly Pro 610 615 620Thr Pro Val Asn Ile Ile Gly Arg Asn Leu Leu Thr Gln Ile Gly Cys625 630 635 640Thr Leu Asn Phe Pro Ile Ser Pro Ile Glu Thr Val Pro Val Lys Leu 645 650 655Lys Pro Gly Met Asp Gly Pro Lys Val Lys Gln Trp Pro Leu Thr Glu 660 665 670Glu Lys Ile Lys Ala Leu Val Glu Ile Cys Thr Glu Met Glu Lys Glu 675 680 685Gly Lys Ile Ser Lys Ile Gly Pro Glu Asn Pro Tyr Asn Thr Pro Ile 690 695 700Phe Ala Ile Lys Lys Lys Asp Ser Thr Lys Trp Arg Lys Leu Val Asp705 710 715 720Phe Arg Glu Leu Asn Lys Arg Thr Gln Asp Phe Trp Glu Val Gln Leu 725 730 735Gly Ile Pro His Pro Ala Gly Leu Lys Lys Lys Lys Ser Val Thr Val 740 745 750Leu Asp Val Gly Asp Ala Tyr Phe Ser Val Pro Leu Asp Glu Asp Phe 755 760 765Arg Lys Tyr Thr Ala Phe Thr Ile Pro Ser Ile Asn Asn Glu Thr Pro 770 775 780Gly Ile Arg Tyr Gln Tyr Asn Val Leu Pro Gln Gly Trp Lys Gly Ser785 790 795 800Pro Ala Ile Phe Gln Ser Ser Met Thr Lys Ile Leu Glu Pro Phe Arg 805 810 815Lys Gln Asn Pro Asp Ile Val Ile Tyr Gln Tyr Met Asp His Leu Tyr 820 825 830Val Gly Ser Asp Leu Glu Ile Gly Gln His Arg Thr Lys Ile Glu Glu 835 840 845Leu Arg Gln His Leu Leu Arg Trp Gly Phe Thr Thr Pro Asp Lys Lys 850 855 860His Gln Lys Glu Pro Pro Phe Leu Trp Met Gly Tyr Glu Leu His Pro865 870 875 880Asp Lys Trp Thr Val Gln Pro Ile Val Leu Pro Glu Lys Asp Ser Trp 885 890 895Thr Val Asn Asp Ile Gln Lys Leu Val Gly Lys Leu Asn Trp Ala Ser 900 905 910Gln Ile Tyr Ala Gly Ile Lys Val Lys Gln Leu Cys Lys Leu Leu Arg 915 920 925Gly Thr Lys Ala Leu Thr Glu Val Val Pro Leu Thr Glu Glu Ala Glu 930 935 940Leu Glu Leu Ala Glu Asn Arg Glu Ile Leu Lys Glu Pro Val His Gly945 950 955 960Val Tyr Tyr Asp Pro Ser Lys Asp Leu Ile Ala Glu Ile Gln Lys Gln 965 970 975Gly Gln Gly Gln Trp Thr Tyr Gln Ile Tyr Gln Glu Pro Phe Lys Asn 980 985 990Leu Lys Thr Gly Lys Tyr Ala Arg Met Arg Gly Ala His Thr Asn Asp 995 1000 1005Val Lys Gln Leu Thr Glu Ala Val Gln Lys Ile Ala Thr Glu Ser 1010 1015 1020Ile Val Ile Trp Gly Lys Thr Pro Lys Phe Lys Leu Pro Ile Gln 1025 1030 1035Lys Glu Thr Trp Glu Ala Trp Trp Thr Glu Tyr Trp Gln Ala Thr 1040 1045 1050Trp Ile Pro Glu Trp Glu Phe Val Asn Thr Pro Pro Leu Val Lys 1055 1060 1065Leu Trp Tyr Gln Leu Glu Lys Glu Pro Ile Val Gly Ala Glu Thr 1070 1075 1080Phe Tyr Val Asp Gly Ala Ala Asn Arg Glu Thr Lys Leu Gly Lys 1085 1090 1095Ala Gly Tyr Val Thr Asp Arg Gly Arg Gln Lys Val Val Ser Leu 1100 1105 1110Thr Asp Thr Thr Asn Gln Lys Thr Glu Leu Gln Ala Ile His Leu 1115 1120 1125Ala Leu Gln Asp Ser Gly Leu Glu Val Asn Ile Val Thr Asp Ser 1130 1135 1140Gln Tyr Ala Leu Gly Ile Ile Gln Ala Gln Pro Asp Lys Ser Glu 1145 1150 1155Ser Glu Leu Val Ser Gln Ile Ile Glu Gln Leu Ile Lys Lys Glu 1160 1165 1170Lys Val Tyr Leu Ala Trp Val Pro Ala His Lys Gly Ile Gly Gly 1175 1180 1185Asn Glu Gln Val Asp Lys Leu Val Ser Arg Gly Ile Arg Lys Val 1190 1195 1200Leu Phe Leu Asp Gly Ile Asp Lys Ala Gln Glu Glu His Glu Lys 1205 1210 1215Tyr His Ser Asn Trp Arg Ala Met Ala Ser Glu Phe Asn Leu Pro 1220 1225 1230Pro Ile Val Ala Lys Glu Ile Val Ala Ser Cys Asp Lys Cys Gln 1235 1240 1245Leu Lys Gly Glu Ala Ile His Gly Gln Val Asp Cys Ser Pro Gly 1250 1255 1260Ile Trp Gln Leu Ala Cys Thr His Leu Glu Gly Lys Val Ile Leu 1265 1270 1275Val Ala Val His Val Ala Ser Gly Tyr Ile Glu Ala Glu Val Ile 1280 1285 1290Pro Ala Glu Thr Gly Gln Glu Thr Ala Tyr Phe Leu Leu Lys Leu 1295 1300 1305Ala Gly Arg Trp Pro Val Lys Thr Ile His Thr Asp Asn Gly Ser 1310 1315 1320Asn Phe Thr Ser Ala Thr Val Lys Ala Ala Cys Trp Trp Ala Gly 1325 1330 1335Ile Lys Gln Glu Phe Gly Ile Pro Tyr Asn Pro Gln Ser Gln Gly 1340 1345 1350Val Val Glu Ser Ile Asn Lys Glu Leu Lys Lys Ile Ile Gly Gln 1355 1360 1365Val Arg Asp Gln Ala Glu His Leu Lys Thr Ala Val Gln Met Ala 1370 1375 1380Val Phe Ile His Asn Phe Lys Arg Lys Gly Gly Ile Gly Glu Tyr 1385 1390 1395Ser Ala Gly Glu Arg Ile Val Asp Ile Ile Ala Ser Asp Ile Gln 1400 1405 1410Thr Lys Glu Leu Gln Lys Gln Ile Thr Lys Ile Gln Asn Phe Arg 1415 1420 1425Val Tyr Tyr Arg Asp Ser Arg Asp Pro Leu Trp Lys Gly Pro Ala 1430 1435 1440Lys Leu Leu Trp Lys Gly Glu Gly Ala Val Val Ile Gln Asp Asn 1445 1450 1455Ser Asp Ile Lys Val Val Pro Arg Arg Lys Ala Lys Ile Ile Arg 1460 1465 1470Asp Tyr Gly Lys Gln Met Ala Gly Asp Asp Cys Val Ala Ser Arg 1475 1480 1485Gln Asp Glu Asp 1490291350PRTArtificial SequenceSynthetic Construct (Mosaic gagpol1 v5) 29Met Gly Ala Arg Ala Ser Val Leu Ser Gly Gly Glu Leu Asp Arg Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys Lys Tyr Arg Leu Lys 20 25 30His Ile Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Val Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Arg Gln Ile Leu Gly Gln Leu 50 55 60Gln Pro Ser Leu Gln Thr Gly Ser Glu Glu Leu Arg Ser Leu Tyr Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Gln Arg Ile Glu Ile Lys Asp 85 90 95Thr Lys Glu Ala Leu Glu Lys Ile Glu Glu Glu Gln Asn Lys Ser Lys 100 105 110Lys Lys Ala Gln Gln Ala Ala Ala Asp Thr Gly Asn Ser Ser Gln Val 115 120 125Ser Gln Asn Tyr Pro Ile Val Gln Asn Ile Gln Gly Gln Met Val His 130 135 140Gln Ala Ile Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Val Glu145 150 155 160Glu Lys Ala Phe Ser Pro Glu Val Ile Pro Met Phe Ser Ala Leu Ser 165 170 175Glu Gly Ala Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly 180 185 190Gly His Gln Ala Ala Met Gln Met Leu Lys Glu Thr Ile Asn Glu Glu 195 200 205Ala Ala Glu Trp Asp Arg Val His Pro Val His Ala Gly Pro Ile Ala 210 215 220Pro Gly Gln Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr225 230 235 240Ser Thr Leu Gln Glu Gln Ile Gly Trp Met Thr Asn Asn Pro Pro Ile 245 250 255Pro Val Gly Glu Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys 260 265 270Ile Val Arg Met Tyr Ser Pro Val Ser Ile Leu Asp Ile Arg Gln Gly 275 280 285Pro Lys Glu Pro Phe Arg Asp Tyr Val Asp Arg Phe Tyr Lys Thr Leu 290 295 300Arg Ala Glu Gln Ala Ser Gln Asp Val Lys Asn Trp Met Thr Glu Thr305 310 315 320Leu Leu Val Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Lys Ala 325 330 335Leu Gly Pro Ala Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly 340 345 350Val Gly Gly Pro Gly His Lys Ala Arg Val Leu Ala Glu Ala Met Ser 355 360 365Gln Val Thr Asn Ser Ala Thr Ile Met Met Gln Arg Gly Asn Phe Arg 370 375 380Asn Gln Arg Lys Thr Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His385 390 395 400Ile Ala Lys Asn Cys Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys 405 410 415Gly Lys Glu Gly His Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn 420 425 430Phe Leu Gly Lys Ile Trp Pro Ser Asn Lys Gly Arg Pro Gly Asn Phe 435 440 445Leu Gln Asn Arg Pro Glu Pro Thr Ala Pro Pro Glu Glu Ser Phe Arg 450 455 460Phe Gly Glu Glu Thr Thr Thr Pro Ser Gln Lys Gln Glu Pro Ile Asp465 470 475 480Lys Glu Met Tyr Pro Leu Ala Ser Leu Lys Ser Leu Phe Gly Asn Asp 485 490 495Pro Ser Ser Gln Met Ala Pro Ile Ser Pro Ile Glu Thr Val Pro Val 500 505 510Lys Leu Lys Pro Gly Met Asp Gly Pro Arg Val Lys Gln Trp Pro Leu 515

520 525Thr Glu Glu Lys Ile Lys Ala Leu Thr Ala Ile Cys Glu Glu Met Glu 530 535 540Lys Glu Gly Lys Ile Thr Lys Ile Gly Pro Glu Asn Pro Tyr Asn Thr545 550 555 560Pro Val Phe Ala Ile Lys Lys Lys Asp Ser Thr Lys Trp Arg Lys Leu 565 570 575Val Asp Phe Arg Glu Leu Asn Lys Arg Thr Gln Asp Phe Trp Glu Val 580 585 590Gln Leu Gly Ile Pro His Pro Ala Gly Leu Lys Lys Lys Lys Ser Val 595 600 605Thr Val Leu Asp Val Gly Asp Ala Tyr Phe Ser Val Pro Leu Asp Glu 610 615 620Gly Phe Arg Lys Tyr Thr Ala Phe Thr Ile Pro Ser Thr Asn Asn Glu625 630 635 640Thr Pro Gly Ile Arg Tyr Gln Tyr Asn Val Leu Pro Gln Gly Trp Lys 645 650 655Gly Ser Pro Ala Ile Phe Gln Cys Ser Met Thr Arg Ile Leu Glu Pro 660 665 670Phe Arg Ala Lys Asn Pro Glu Ile Val Ile Tyr Gln Tyr Met Asp His 675 680 685Leu Tyr Val Gly Ser Asp Leu Glu Ile Gly Gln His Arg Ala Lys Ile 690 695 700Glu Glu Leu Arg Glu His Leu Leu Lys Trp Gly Phe Thr Thr Pro Asp705 710 715 720Lys Lys His Gln Lys Glu Pro Pro Phe Leu Trp Met Gly Tyr Glu Leu 725 730 735His Pro Asp Lys Trp Thr Val Gln Pro Ile Gln Leu Pro Glu Lys Asp 740 745 750Ser Trp Thr Val Asn Asp Ile Gln Lys Leu Val Gly Lys Leu Asn Trp 755 760 765Ala Ser Gln Ile Tyr Pro Gly Ile Lys Val Arg Gln Leu Cys Lys Leu 770 775 780Leu Arg Gly Ala Lys Ala Leu Thr Asp Ile Val Pro Leu Thr Glu Glu785 790 795 800Ala Glu Leu Glu Leu Ala Glu Asn Arg Glu Ile Leu Lys Glu Pro Val 805 810 815His Gly Val Tyr Tyr Asp Pro Ser Lys Asp Leu Ile Ala Glu Ile Gln 820 825 830Lys Gln Gly His Asp Gln Trp Thr Tyr Gln Ile Tyr Gln Glu Pro Phe 835 840 845Lys Asn Leu Lys Thr Gly Lys Tyr Ala Lys Met Arg Thr Ala His Thr 850 855 860Asn Asp Val Lys Gln Leu Thr Glu Ala Val Gln Lys Ile Ala Met Glu865 870 875 880Ser Ile Val Ile Trp Gly Lys Thr Pro Lys Phe Arg Leu Pro Ile Gln 885 890 895Lys Glu Thr Trp Glu Thr Trp Trp Thr Asp Tyr Trp Gln Ala Thr Trp 900 905 910Ile Pro Glu Trp Glu Phe Val Asn Thr Pro Pro Leu Val Lys Leu Trp 915 920 925Tyr Gln Leu Glu Lys Asp Pro Ile Ala Gly Val Glu Thr Phe Tyr Val 930 935 940Asp Gly Ala Ala Asn Arg Glu Thr Lys Leu Gly Lys Ala Gly Tyr Val945 950 955 960Thr Asp Arg Gly Arg Gln Lys Ile Val Ser Leu Thr Glu Thr Thr Asn 965 970 975Gln Lys Thr Glu Leu Gln Ala Ile Tyr Leu Ala Leu Gln Asp Ser Gly 980 985 990Ser Glu Val Asn Ile Val Thr Asp Ser Gln Tyr Ala Leu Gly Ile Ile 995 1000 1005Gln Ala Gln Pro Asp Lys Ser Glu Ser Glu Leu Val Asn Gln Ile 1010 1015 1020Ile Glu Gln Leu Ile Lys Lys Glu Arg Val Tyr Leu Ser Trp Val 1025 1030 1035Pro Ala His Lys Gly Ile Gly Gly Asn Glu Gln Val Asp Lys Leu 1040 1045 1050Val Ser Ser Gly Ile Arg Lys Val Leu Phe Leu Asp Gly Ile Asp 1055 1060 1065Lys Ala Gln Glu Glu His Glu Lys Tyr His Ser Asn Trp Arg Ala 1070 1075 1080Met Ala Ser Asp Phe Asn Leu Pro Pro Val Val Ala Lys Glu Ile 1085 1090 1095Val Ala Ser Cys Asp Gln Cys Gln Leu Lys Gly Glu Ala Met His 1100 1105 1110Gly Gln Val Asp Cys Ser Pro Gly Ile Trp Gln Leu Ala Cys Thr 1115 1120 1125His Leu Glu Gly Lys Ile Ile Leu Val Ala Val His Val Ala Ser 1130 1135 1140Gly Tyr Ile Glu Ala Glu Val Ile Pro Ala Glu Thr Gly Gln Glu 1145 1150 1155Thr Ala Tyr Phe Ile Leu Lys Leu Ala Gly Arg Trp Pro Val Lys 1160 1165 1170Val Ile His Thr Asp Asn Gly Ser Asn Phe Thr Ser Ala Ala Val 1175 1180 1185Lys Ala Ala Cys Trp Trp Ala Gly Ile Gln Gln Glu Phe Gly Ile 1190 1195 1200Pro Tyr Asn Pro Gln Ser Gln Gly Val Val Glu Ser Met Asn Lys 1205 1210 1215Glu Leu Lys Lys Ile Ile Gly Gln Val Arg Asp Gln Ala Glu His 1220 1225 1230Leu Lys Thr Ala Val Gln Met Ala Val Phe Ile His Asn Phe Lys 1235 1240 1245Arg Lys Gly Gly Ile Gly Gly Tyr Ser Ala Gly Glu Arg Ile Ile 1250 1255 1260Asp Ile Ile Ala Thr Asp Ile Gln Thr Lys Glu Leu Gln Lys Gln 1265 1270 1275Ile Ile Lys Ile Gln Asn Phe Arg Val Tyr Tyr Arg Asp Ser Arg 1280 1285 1290Asp Pro Ile Trp Lys Gly Pro Ala Lys Leu Leu Trp Lys Gly Glu 1295 1300 1305Gly Ala Val Val Ile Gln Asp Asn Ser Asp Ile Lys Val Val Pro 1310 1315 1320Arg Arg Lys Val Lys Ile Ile Lys Asp Tyr Gly Lys Gln Met Ala 1325 1330 1335Gly Ala Asp Cys Val Ala Gly Arg Gln Asp Glu Asp 1340 1345 1350301341PRTArtificial SequenceSynthetic Construct (Mosaic gagpol2 v5) 30Met Gly Ala Arg Ala Ser Ile Leu Arg Gly Gly Lys Leu Asp Lys Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys His Tyr Met Leu Lys 20 25 30His Leu Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Leu Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Lys Gln Ile Ile Lys Gln Leu 50 55 60Gln Pro Ala Leu Gln Thr Gly Thr Glu Glu Leu Arg Ser Leu Phe Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Ala Glu Ile Glu Val Arg Asp 85 90 95Thr Lys Glu Ala Leu Asp Lys Ile Glu Glu Glu Gln Asn Lys Ser Gln 100 105 110Gln Lys Thr Gln Gln Ala Lys Glu Ala Asp Gly Lys Val Ser Gln Asn 115 120 125Tyr Pro Ile Val Gln Asn Leu Gln Gly Gln Met Val His Gln Pro Ile 130 135 140Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Ile Glu Glu Lys Ala145 150 155 160Phe Ser Pro Glu Val Ile Pro Met Phe Thr Ala Leu Ser Glu Gly Ala 165 170 175Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly Gly His Gln 180 185 190Ala Ala Met Gln Met Leu Lys Asp Thr Ile Asn Glu Glu Ala Ala Glu 195 200 205Trp Asp Arg Leu His Pro Val His Ala Gly Pro Val Ala Pro Gly Gln 210 215 220Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr Ser Asn Leu225 230 235 240Gln Glu Gln Ile Ala Trp Met Thr Ser Asn Pro Pro Ile Pro Val Gly 245 250 255Asp Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys Ile Val Arg 260 265 270Met Tyr Ser Pro Thr Ser Ile Leu Asp Ile Lys Gln Gly Pro Lys Glu 275 280 285Pro Phe Arg Asp Tyr Val Asp Arg Phe Phe Lys Thr Leu Arg Ala Glu 290 295 300Gln Ala Thr Gln Asp Val Lys Asn Trp Met Thr Asp Thr Leu Leu Val305 310 315 320Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Arg Ala Leu Gly Pro 325 330 335Gly Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly Val Gly Gly 340 345 350Pro Ser His Lys Ala Arg Val Leu Ala Glu Ala Met Ser Gln Thr Asn 355 360 365Ser Thr Ile Leu Met Gln Arg Ser Asn Phe Lys Gly Ser Lys Arg Ile 370 375 380Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His Ile Ala Arg Asn Cys385 390 395 400Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys Gly Lys Glu Gly His 405 410 415Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn Phe Leu Gly Lys Ile 420 425 430Trp Pro Ser His Lys Gly Arg Pro Gly Asn Phe Leu Gln Ser Arg Pro 435 440 445Glu Pro Thr Ala Pro Pro Ala Glu Ser Phe Arg Phe Glu Glu Thr Thr 450 455 460Pro Ala Pro Lys Gln Glu Pro Lys Asp Arg Glu Pro Leu Thr Ser Leu465 470 475 480Arg Ser Leu Phe Gly Ser Asp Pro Leu Ser Gln Met Ala Pro Ile Ser 485 490 495Pro Ile Glu Thr Val Pro Val Lys Leu Lys Pro Gly Met Asp Gly Pro 500 505 510Lys Val Lys Gln Trp Pro Leu Thr Glu Glu Lys Ile Lys Ala Leu Val 515 520 525Glu Ile Cys Thr Glu Met Glu Lys Glu Gly Lys Ile Ser Lys Ile Gly 530 535 540Pro Glu Asn Pro Tyr Asn Thr Pro Ile Phe Ala Ile Lys Lys Lys Asp545 550 555 560Ser Thr Lys Trp Arg Lys Leu Val Asp Phe Arg Glu Leu Asn Lys Arg 565 570 575Thr Gln Asp Phe Trp Glu Val Gln Leu Gly Ile Pro His Pro Ala Gly 580 585 590Leu Lys Lys Lys Lys Ser Val Thr Val Leu Asp Val Gly Asp Ala Tyr 595 600 605Phe Ser Val Pro Leu Asp Glu Asp Phe Arg Lys Tyr Thr Ala Phe Thr 610 615 620Ile Pro Ser Ile Asn Asn Glu Thr Pro Gly Ile Arg Tyr Gln Tyr Asn625 630 635 640Val Leu Pro Gln Gly Trp Lys Gly Ser Pro Ala Ile Phe Gln Ser Ser 645 650 655Met Thr Lys Ile Leu Glu Pro Phe Arg Lys Gln Asn Pro Asp Ile Val 660 665 670Ile Tyr Gln Tyr Met Asp His Leu Tyr Val Gly Ser Asp Leu Glu Ile 675 680 685Gly Gln His Arg Thr Lys Ile Glu Glu Leu Arg Gln His Leu Leu Arg 690 695 700Trp Gly Phe Thr Thr Pro Asp Lys Lys His Gln Lys Glu Pro Pro Phe705 710 715 720Leu Trp Met Gly Tyr Glu Leu His Pro Asp Lys Trp Thr Val Gln Pro 725 730 735Ile Val Leu Pro Glu Lys Asp Ser Trp Thr Val Asn Asp Ile Gln Lys 740 745 750Leu Val Gly Lys Leu Asn Trp Ala Ser Gln Ile Tyr Ala Gly Ile Lys 755 760 765Val Lys Gln Leu Cys Lys Leu Leu Arg Gly Thr Lys Ala Leu Thr Glu 770 775 780Val Val Pro Leu Thr Glu Glu Ala Glu Leu Glu Leu Ala Glu Asn Arg785 790 795 800Glu Ile Leu Lys Glu Pro Val His Gly Val Tyr Tyr Asp Pro Ser Lys 805 810 815Asp Leu Ile Ala Glu Ile Gln Lys Gln Gly Gln Gly Gln Trp Thr Tyr 820 825 830Gln Ile Tyr Gln Glu Pro Phe Lys Asn Leu Lys Thr Gly Lys Tyr Ala 835 840 845Arg Met Arg Gly Ala His Thr Asn Asp Val Lys Gln Leu Thr Glu Ala 850 855 860Val Gln Lys Ile Ala Thr Glu Ser Ile Val Ile Trp Gly Lys Thr Pro865 870 875 880Lys Phe Lys Leu Pro Ile Gln Lys Glu Thr Trp Glu Ala Trp Trp Thr 885 890 895Glu Tyr Trp Gln Ala Thr Trp Ile Pro Glu Trp Glu Phe Val Asn Thr 900 905 910Pro Pro Leu Val Lys Leu Trp Tyr Gln Leu Glu Lys Glu Pro Ile Val 915 920 925Gly Ala Glu Thr Phe Tyr Val Asp Gly Ala Ala Asn Arg Glu Thr Lys 930 935 940Leu Gly Lys Ala Gly Tyr Val Thr Asp Arg Gly Arg Gln Lys Val Val945 950 955 960Ser Leu Thr Asp Thr Thr Asn Gln Lys Thr Glu Leu Gln Ala Ile His 965 970 975Leu Ala Leu Gln Asp Ser Gly Leu Glu Val Asn Ile Val Thr Asp Ser 980 985 990Gln Tyr Ala Leu Gly Ile Ile Gln Ala Gln Pro Asp Lys Ser Glu Ser 995 1000 1005Glu Leu Val Ser Gln Ile Ile Glu Gln Leu Ile Lys Lys Glu Lys 1010 1015 1020Val Tyr Leu Ala Trp Val Pro Ala His Lys Gly Ile Gly Gly Asn 1025 1030 1035Glu Gln Val Asp Lys Leu Val Ser Arg Gly Ile Arg Lys Val Leu 1040 1045 1050Phe Leu Asp Gly Ile Asp Lys Ala Gln Glu Glu His Glu Lys Tyr 1055 1060 1065His Ser Asn Trp Arg Ala Met Ala Ser Glu Phe Asn Leu Pro Pro 1070 1075 1080Ile Val Ala Lys Glu Ile Val Ala Ser Cys Asp Lys Cys Gln Leu 1085 1090 1095Lys Gly Glu Ala Ile His Gly Gln Val Asp Cys Ser Pro Gly Ile 1100 1105 1110Trp Gln Leu Ala Cys Thr His Leu Glu Gly Lys Val Ile Leu Val 1115 1120 1125Ala Val His Val Ala Ser Gly Tyr Ile Glu Ala Glu Val Ile Pro 1130 1135 1140Ala Glu Thr Gly Gln Glu Thr Ala Tyr Phe Leu Leu Lys Leu Ala 1145 1150 1155Gly Arg Trp Pro Val Lys Thr Ile His Thr Asp Asn Gly Ser Asn 1160 1165 1170Phe Thr Ser Ala Thr Val Lys Ala Ala Cys Trp Trp Ala Gly Ile 1175 1180 1185Lys Gln Glu Phe Gly Ile Pro Tyr Asn Pro Gln Ser Gln Gly Val 1190 1195 1200Val Glu Ser Ile Asn Lys Glu Leu Lys Lys Ile Ile Gly Gln Val 1205 1210 1215Arg Asp Gln Ala Glu His Leu Lys Thr Ala Val Gln Met Ala Val 1220 1225 1230Phe Ile His Asn Phe Lys Arg Lys Gly Gly Ile Gly Glu Tyr Ser 1235 1240 1245Ala Gly Glu Arg Ile Val Asp Ile Ile Ala Ser Asp Ile Gln Thr 1250 1255 1260Lys Glu Leu Gln Lys Gln Ile Thr Lys Ile Gln Asn Phe Arg Val 1265 1270 1275Tyr Tyr Arg Asp Ser Arg Asp Pro Leu Trp Lys Gly Pro Ala Lys 1280 1285 1290Leu Leu Trp Lys Gly Glu Gly Ala Val Val Ile Gln Asp Asn Ser 1295 1300 1305Asp Ile Lys Val Val Pro Arg Arg Lys Ala Lys Ile Ile Arg Asp 1310 1315 1320Tyr Gly Lys Gln Met Ala Gly Asp Asp Cys Val Ala Ser Arg Gln 1325 1330 1335Asp Glu Asp 1340311556PRTArtificial SequenceSynthetic Construct (Mosaic gagpolnef1) 31Met Gly Ala Arg Ala Ser Val Leu Ser Gly Gly Glu Leu Asp Arg Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys Lys Tyr Arg Leu Lys 20 25 30His Ile Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Val Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Arg Gln Ile Leu Gly Gln Leu 50 55 60Gln Pro Ser Leu Gln Thr Gly Ser Glu Glu Leu Arg Ser Leu Tyr Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Gln Arg Ile Glu Ile Lys Asp 85 90 95Thr Lys Glu Ala Leu Glu Lys Ile Glu Glu Glu Gln Asn Lys Ser Lys 100 105 110Lys Lys Ala Gln Gln Ala Ala Ala Asp Thr Gly Asn Ser Ser Gln Val 115 120 125Ser Gln Asn Tyr Pro Ile Val Gln Asn Ile Gln Gly Gln Met Val His 130 135 140Gln Ala Ile Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Val Glu145 150 155 160Glu Lys Ala Phe Ser Pro Glu Val Ile Pro Met Phe Ser Ala Leu Ser 165 170 175Glu Gly Ala Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly 180 185 190Gly His Gln Ala Ala Met Gln Met Leu Lys Glu Thr Ile Asn Glu Glu 195 200 205Ala Ala Glu Trp Asp Arg Val His Pro Val His Ala Gly Pro Ile Ala 210 215 220Pro Gly Gln Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr225 230 235 240Ser Thr Leu Gln Glu Gln Ile Gly Trp Met Thr Asn Asn Pro Pro Ile 245 250 255Pro Val Gly Glu Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys 260 265 270Ile Val Arg Met Tyr

Ser Pro Val Ser Ile Leu Asp Ile Arg Gln Gly 275 280 285Pro Lys Glu Pro Phe Arg Asp Tyr Val Asp Arg Phe Tyr Lys Thr Leu 290 295 300Arg Ala Glu Gln Ala Ser Gln Asp Val Lys Asn Trp Met Thr Glu Thr305 310 315 320Leu Leu Val Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Lys Ala 325 330 335Leu Gly Pro Ala Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly 340 345 350Val Gly Gly Pro Gly His Lys Ala Arg Val Leu Ala Glu Ala Met Ser 355 360 365Gln Val Thr Asn Ser Ala Thr Ile Met Met Gln Arg Gly Asn Phe Arg 370 375 380Asn Gln Arg Lys Thr Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His385 390 395 400Ile Ala Lys Asn Cys Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys 405 410 415Gly Lys Glu Gly His Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn 420 425 430Phe Leu Gly Lys Ile Trp Pro Ser Asn Lys Gly Arg Pro Gly Asn Phe 435 440 445Leu Gln Asn Arg Pro Glu Pro Thr Ala Pro Pro Glu Glu Ser Phe Arg 450 455 460Phe Gly Glu Glu Thr Thr Thr Pro Ser Gln Lys Gln Glu Pro Ile Asp465 470 475 480Lys Glu Met Tyr Pro Leu Ala Ser Leu Lys Ser Leu Phe Gly Asn Asp 485 490 495Pro Ser Ser Gln Met Ala Pro Ile Ser Pro Ile Glu Thr Val Pro Val 500 505 510Lys Leu Lys Pro Gly Met Asp Gly Pro Arg Val Lys Gln Trp Pro Leu 515 520 525Thr Glu Glu Lys Ile Lys Ala Leu Thr Ala Ile Cys Glu Glu Met Glu 530 535 540Lys Glu Gly Lys Ile Thr Lys Ile Gly Pro Glu Asn Pro Tyr Asn Thr545 550 555 560Pro Val Phe Ala Ile Lys Lys Lys Asp Ser Thr Lys Trp Arg Lys Leu 565 570 575Val Asp Phe Arg Glu Leu Asn Lys Arg Thr Gln Asp Phe Trp Glu Val 580 585 590Gln Leu Gly Ile Pro His Pro Ala Gly Leu Lys Lys Lys Lys Ser Val 595 600 605Thr Val Leu Ala Val Gly Asp Ala Tyr Phe Ser Val Pro Leu Asp Glu 610 615 620Gly Phe Arg Lys Tyr Thr Ala Phe Thr Ile Pro Ser Thr Asn Asn Glu625 630 635 640Thr Pro Gly Ile Arg Tyr Gln Tyr Asn Val Leu Pro Gln Gly Trp Lys 645 650 655Gly Ser Pro Ala Ile Phe Gln Cys Ser Met Thr Arg Ile Leu Glu Pro 660 665 670Phe Arg Ala Lys Asn Pro Glu Ile Val Ile Tyr Gln Tyr Met Ala Ala 675 680 685Leu Tyr Val Gly Ser Asp Leu Glu Ile Gly Gln His Arg Ala Lys Ile 690 695 700Glu Glu Leu Arg Glu His Leu Leu Lys Trp Gly Phe Thr Thr Pro Asp705 710 715 720Lys Lys His Gln Lys Glu Pro Pro Phe Leu Trp Met Gly Tyr Glu Leu 725 730 735His Pro Asp Lys Trp Thr Val Gln Pro Ile Gln Leu Pro Glu Lys Asp 740 745 750Ser Trp Thr Val Asn Asp Ile Gln Lys Leu Val Gly Lys Leu Asn Trp 755 760 765Ala Ser Gln Ile Tyr Pro Gly Ile Lys Val Arg Gln Leu Cys Lys Leu 770 775 780Leu Arg Gly Ala Lys Ala Leu Thr Asp Ile Val Pro Leu Thr Glu Glu785 790 795 800Ala Glu Leu Glu Leu Ala Glu Asn Arg Glu Ile Leu Lys Glu Pro Val 805 810 815His Gly Val Tyr Tyr Asp Pro Ser Lys Asp Leu Ile Ala Glu Ile Gln 820 825 830Lys Gln Gly His Asp Gln Trp Thr Tyr Gln Ile Tyr Gln Glu Pro Phe 835 840 845Lys Asn Leu Lys Thr Gly Lys Tyr Ala Lys Met Arg Thr Ala His Thr 850 855 860Asn Asp Val Lys Gln Leu Thr Glu Ala Val Gln Lys Ile Ala Met Glu865 870 875 880Ser Ile Val Ile Trp Gly Lys Thr Pro Lys Phe Arg Leu Pro Ile Gln 885 890 895Lys Glu Thr Trp Glu Thr Trp Trp Thr Asp Tyr Trp Gln Ala Thr Trp 900 905 910Ile Pro Glu Trp Glu Phe Val Asn Thr Pro Pro Leu Val Lys Leu Trp 915 920 925Tyr Gln Leu Glu Lys Asp Pro Ile Ala Gly Val Glu Thr Phe Tyr Val 930 935 940Ala Gly Ala Ala Asn Arg Glu Thr Lys Leu Gly Lys Ala Gly Tyr Val945 950 955 960Thr Asp Arg Gly Arg Gln Lys Ile Val Ser Leu Thr Glu Thr Thr Asn 965 970 975Gln Lys Thr Ala Leu Gln Ala Ile Tyr Leu Ala Leu Gln Asp Ser Gly 980 985 990Ser Glu Val Asn Ile Val Thr Ala Ser Gln Tyr Ala Leu Gly Ile Ile 995 1000 1005Gln Ala Gln Pro Asp Lys Ser Glu Ser Glu Leu Val Asn Gln Ile 1010 1015 1020Ile Glu Gln Leu Ile Lys Lys Glu Arg Val Tyr Leu Ser Trp Val 1025 1030 1035Pro Ala His Lys Gly Ile Gly Gly Asn Glu Gln Val Asp Lys Leu 1040 1045 1050Val Ser Ser Gly Ile Arg Lys Val Leu Phe Leu Asp Gly Ile Asp 1055 1060 1065Lys Ala Gln Glu Glu His Glu Lys Tyr His Ser Asn Trp Arg Ala 1070 1075 1080Met Ala Ser Asp Phe Asn Leu Pro Pro Val Val Ala Lys Glu Ile 1085 1090 1095Val Ala Ser Cys Asp Gln Cys Gln Leu Lys Gly Glu Ala Met His 1100 1105 1110Gly Gln Val Asp Cys Ser Pro Gly Ile Trp Gln Leu Ala Cys Thr 1115 1120 1125His Leu Glu Gly Lys Ile Ile Leu Val Ala Val His Val Ala Ser 1130 1135 1140Gly Tyr Ile Glu Ala Glu Val Ile Pro Ala Glu Thr Gly Gln Glu 1145 1150 1155Thr Ala Tyr Phe Ile Leu Lys Leu Ala Gly Arg Trp Pro Val Lys 1160 1165 1170Val Ile His Thr Ala Asn Gly Ser Asn Phe Thr Ser Ala Ala Val 1175 1180 1185Lys Ala Ala Cys Trp Trp Ala Gly Ile Gln Gln Glu Phe Gly Ile 1190 1195 1200Pro Tyr Asn Pro Gln Ser Gln Gly Val Val Ala Ser Met Asn Lys 1205 1210 1215Glu Leu Lys Lys Ile Ile Gly Gln Val Arg Asp Gln Ala Glu His 1220 1225 1230Leu Lys Thr Ala Val Gln Met Ala Val Phe Ile His Asn Phe Lys 1235 1240 1245Arg Lys Gly Gly Ile Gly Gly Tyr Ser Ala Gly Glu Arg Ile Ile 1250 1255 1260Asp Ile Ile Ala Thr Asp Ile Gln Thr Lys Glu Leu Gln Lys Gln 1265 1270 1275Ile Ile Lys Ile Gln Asn Phe Arg Val Tyr Tyr Arg Asp Ser Arg 1280 1285 1290Asp Pro Ile Trp Lys Gly Pro Ala Lys Leu Leu Trp Lys Gly Glu 1295 1300 1305Gly Ala Val Val Ile Gln Asp Asn Ser Asp Ile Lys Val Val Pro 1310 1315 1320Arg Arg Lys Val Lys Ile Ile Lys Asp Tyr Gly Lys Gln Met Ala 1325 1330 1335Gly Ala Asp Cys Val Ala Gly Arg Gln Asp Glu Asp Met Ala Gly 1340 1345 1350Lys Trp Ser Lys Ser Ser Val Val Gly Trp Pro Ala Ile Arg Glu 1355 1360 1365Arg Met Arg Arg Ala Glu Pro Ala Ala Asp Gly Val Gly Ala Val 1370 1375 1380Ser Arg Asp Leu Glu Lys His Gly Ala Ile Thr Ser Ser Asn Thr 1385 1390 1395Ala Ala Asn Asn Ala Asp Cys Ala Trp Leu Glu Ala Gln Glu Glu 1400 1405 1410Glu Glu Val Gly Phe Pro Val Arg Pro Gln Val Pro Leu Arg Pro 1415 1420 1425Met Thr Tyr Lys Gly Ala Leu Asp Leu Ser His Phe Leu Lys Glu 1430 1435 1440Lys Gly Gly Leu Glu Gly Leu Ile Tyr Ser Gln Lys Arg Gln Asp 1445 1450 1455Ile Leu Asp Leu Trp Val Tyr His Thr Gln Gly Tyr Phe Pro Asp 1460 1465 1470Trp Gln Asn Tyr Thr Pro Gly Pro Gly Ile Arg Tyr Pro Leu Thr 1475 1480 1485Phe Gly Trp Cys Phe Lys Leu Val Pro Val Glu Pro Glu Lys Ile 1490 1495 1500Glu Glu Ala Asn Glu Gly Glu Asn Asn Ser Leu Leu His Pro Met 1505 1510 1515Ser Gln His Gly Met Asp Asp Pro Glu Lys Glu Val Leu Met Trp 1520 1525 1530Lys Phe Asp Ser Arg Leu Ala Phe His His Met Ala Arg Glu Leu 1535 1540 1545His Pro Glu Tyr Tyr Lys Asp Cys 1550 1555321547PRTArtificial SequenceSynthetic Construct (Mosaic gagpolnef2) 32Met Gly Ala Arg Ala Ser Ile Leu Arg Gly Gly Lys Leu Asp Lys Trp1 5 10 15Glu Lys Ile Arg Leu Arg Pro Gly Gly Lys Lys His Tyr Met Leu Lys 20 25 30His Leu Val Trp Ala Ser Arg Glu Leu Glu Arg Phe Ala Leu Asn Pro 35 40 45Gly Leu Leu Glu Thr Ser Glu Gly Cys Lys Gln Ile Ile Lys Gln Leu 50 55 60Gln Pro Ala Leu Gln Thr Gly Thr Glu Glu Leu Arg Ser Leu Phe Asn65 70 75 80Thr Val Ala Thr Leu Tyr Cys Val His Ala Glu Ile Glu Val Arg Asp 85 90 95Thr Lys Glu Ala Leu Asp Lys Ile Glu Glu Glu Gln Asn Lys Ser Gln 100 105 110Gln Lys Thr Gln Gln Ala Lys Glu Ala Asp Gly Lys Val Ser Gln Asn 115 120 125Tyr Pro Ile Val Gln Asn Leu Gln Gly Gln Met Val His Gln Pro Ile 130 135 140Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Val Ile Glu Glu Lys Ala145 150 155 160Phe Ser Pro Glu Val Ile Pro Met Phe Thr Ala Leu Ser Glu Gly Ala 165 170 175Thr Pro Gln Asp Leu Asn Thr Met Leu Asn Thr Val Gly Gly His Gln 180 185 190Ala Ala Met Gln Met Leu Lys Asp Thr Ile Asn Glu Glu Ala Ala Glu 195 200 205Trp Asp Arg Leu His Pro Val His Ala Gly Pro Val Ala Pro Gly Gln 210 215 220Met Arg Glu Pro Arg Gly Ser Asp Ile Ala Gly Thr Thr Ser Asn Leu225 230 235 240Gln Glu Gln Ile Ala Trp Met Thr Ser Asn Pro Pro Ile Pro Val Gly 245 250 255Asp Ile Tyr Lys Arg Trp Ile Ile Leu Gly Leu Asn Lys Ile Val Arg 260 265 270Met Tyr Ser Pro Thr Ser Ile Leu Asp Ile Lys Gln Gly Pro Lys Glu 275 280 285Pro Phe Arg Asp Tyr Val Asp Arg Phe Phe Lys Thr Leu Arg Ala Glu 290 295 300Gln Ala Thr Gln Asp Val Lys Asn Trp Met Thr Asp Thr Leu Leu Val305 310 315 320Gln Asn Ala Asn Pro Asp Cys Lys Thr Ile Leu Arg Ala Leu Gly Pro 325 330 335Gly Ala Thr Leu Glu Glu Met Met Thr Ala Cys Gln Gly Val Gly Gly 340 345 350Pro Ser His Lys Ala Arg Val Leu Ala Glu Ala Met Ser Gln Thr Asn 355 360 365Ser Thr Ile Leu Met Gln Arg Ser Asn Phe Lys Gly Ser Lys Arg Ile 370 375 380Val Lys Cys Phe Asn Cys Gly Lys Glu Gly His Ile Ala Arg Asn Cys385 390 395 400Arg Ala Pro Arg Lys Lys Gly Cys Trp Lys Cys Gly Lys Glu Gly His 405 410 415Gln Met Lys Asp Cys Thr Glu Arg Gln Ala Asn Phe Leu Gly Lys Ile 420 425 430Trp Pro Ser His Lys Gly Arg Pro Gly Asn Phe Leu Gln Ser Arg Pro 435 440 445Glu Pro Thr Ala Pro Pro Ala Glu Ser Phe Arg Phe Glu Glu Thr Thr 450 455 460Pro Ala Pro Lys Gln Glu Pro Lys Asp Arg Glu Pro Leu Thr Ser Leu465 470 475 480Arg Ser Leu Phe Gly Ser Asp Pro Leu Ser Gln Met Ala Pro Ile Ser 485 490 495Pro Ile Glu Thr Val Pro Val Lys Leu Lys Pro Gly Met Asp Gly Pro 500 505 510Lys Val Lys Gln Trp Pro Leu Thr Glu Glu Lys Ile Lys Ala Leu Val 515 520 525Glu Ile Cys Thr Glu Met Glu Lys Glu Gly Lys Ile Ser Lys Ile Gly 530 535 540Pro Glu Asn Pro Tyr Asn Thr Pro Ile Phe Ala Ile Lys Lys Lys Asp545 550 555 560Ser Thr Lys Trp Arg Lys Leu Val Asp Phe Arg Glu Leu Asn Lys Arg 565 570 575Thr Gln Asp Phe Trp Glu Val Gln Leu Gly Ile Pro His Pro Ala Gly 580 585 590Leu Lys Lys Lys Lys Ser Val Thr Val Leu Ala Val Gly Asp Ala Tyr 595 600 605Phe Ser Val Pro Leu Asp Glu Asp Phe Arg Lys Tyr Thr Ala Phe Thr 610 615 620Ile Pro Ser Ile Asn Asn Glu Thr Pro Gly Ile Arg Tyr Gln Tyr Asn625 630 635 640Val Leu Pro Gln Gly Trp Lys Gly Ser Pro Ala Ile Phe Gln Ser Ser 645 650 655Met Thr Lys Ile Leu Glu Pro Phe Arg Lys Gln Asn Pro Asp Ile Val 660 665 670Ile Tyr Gln Tyr Met Ala Ala Leu Tyr Val Gly Ser Asp Leu Glu Ile 675 680 685Gly Gln His Arg Thr Lys Ile Glu Glu Leu Arg Gln His Leu Leu Arg 690 695 700Trp Gly Phe Thr Thr Pro Asp Lys Lys His Gln Lys Glu Pro Pro Phe705 710 715 720Leu Trp Met Gly Tyr Glu Leu His Pro Asp Lys Trp Thr Val Gln Pro 725 730 735Ile Val Leu Pro Glu Lys Asp Ser Trp Thr Val Asn Asp Ile Gln Lys 740 745 750Leu Val Gly Lys Leu Asn Trp Ala Ser Gln Ile Tyr Ala Gly Ile Lys 755 760 765Val Lys Gln Leu Cys Lys Leu Leu Arg Gly Thr Lys Ala Leu Thr Glu 770 775 780Val Val Pro Leu Thr Glu Glu Ala Glu Leu Glu Leu Ala Glu Asn Arg785 790 795 800Glu Ile Leu Lys Glu Pro Val His Gly Val Tyr Tyr Asp Pro Ser Lys 805 810 815Asp Leu Ile Ala Glu Ile Gln Lys Gln Gly Gln Gly Gln Trp Thr Tyr 820 825 830Gln Ile Tyr Gln Glu Pro Phe Lys Asn Leu Lys Thr Gly Lys Tyr Ala 835 840 845Arg Met Arg Gly Ala His Thr Asn Asp Val Lys Gln Leu Thr Glu Ala 850 855 860Val Gln Lys Ile Ala Thr Glu Ser Ile Val Ile Trp Gly Lys Thr Pro865 870 875 880Lys Phe Lys Leu Pro Ile Gln Lys Glu Thr Trp Glu Ala Trp Trp Thr 885 890 895Glu Tyr Trp Gln Ala Thr Trp Ile Pro Glu Trp Glu Phe Val Asn Thr 900 905 910Pro Pro Leu Val Lys Leu Trp Tyr Gln Leu Glu Lys Glu Pro Ile Val 915 920 925Gly Ala Glu Thr Phe Tyr Val Ala Gly Ala Ala Asn Arg Glu Thr Lys 930 935 940Leu Gly Lys Ala Gly Tyr Val Thr Asp Arg Gly Arg Gln Lys Val Val945 950 955 960Ser Leu Thr Asp Thr Thr Asn Gln Lys Thr Ala Leu Gln Ala Ile His 965 970 975Leu Ala Leu Gln Asp Ser Gly Leu Glu Val Asn Ile Val Thr Ala Ser 980 985 990Gln Tyr Ala Leu Gly Ile Ile Gln Ala Gln Pro Asp Lys Ser Glu Ser 995 1000 1005Glu Leu Val Ser Gln Ile Ile Glu Gln Leu Ile Lys Lys Glu Lys 1010 1015 1020Val Tyr Leu Ala Trp Val Pro Ala His Lys Gly Ile Gly Gly Asn 1025 1030 1035Glu Gln Val Asp Lys Leu Val Ser Arg Gly Ile Arg Lys Val Leu 1040 1045 1050Phe Leu Asp Gly Ile Asp Lys Ala Gln Glu Glu His Glu Lys Tyr 1055 1060 1065His Ser Asn Trp Arg Ala Met Ala Ser Glu Phe Asn Leu Pro Pro 1070 1075 1080Ile Val Ala Lys Glu Ile Val Ala Ser Cys Asp Lys Cys Gln Leu 1085 1090 1095Lys Gly Glu Ala Ile His Gly Gln Val Asp Cys Ser Pro Gly Ile 1100 1105 1110Trp Gln Leu Ala Cys Thr His Leu Glu Gly Lys Val Ile Leu Val 1115 1120 1125Ala Val His Val Ala Ser Gly Tyr Ile Glu Ala Glu Val Ile Pro 1130 1135 1140Ala Glu Thr Gly Gln Glu Thr Ala Tyr Phe Leu Leu Lys Leu Ala 1145 1150 1155Gly Arg Trp Pro Val Lys Thr Ile His Thr Ala Asn Gly Ser Asn 1160 1165

1170Phe Thr Ser Ala Thr Val Lys Ala Ala Cys Trp Trp Ala Gly Ile 1175 1180 1185Lys Gln Glu Phe Gly Ile Pro Tyr Asn Pro Gln Ser Gln Gly Val 1190 1195 1200Val Ala Ser Ile Asn Lys Glu Leu Lys Lys Ile Ile Gly Gln Val 1205 1210 1215Arg Asp Gln Ala Glu His Leu Lys Thr Ala Val Gln Met Ala Val 1220 1225 1230Phe Ile His Asn Phe Lys Arg Lys Gly Gly Ile Gly Glu Tyr Ser 1235 1240 1245Ala Gly Glu Arg Ile Val Asp Ile Ile Ala Ser Asp Ile Gln Thr 1250 1255 1260Lys Glu Leu Gln Lys Gln Ile Thr Lys Ile Gln Asn Phe Arg Val 1265 1270 1275Tyr Tyr Arg Asp Ser Arg Asp Pro Leu Trp Lys Gly Pro Ala Lys 1280 1285 1290Leu Leu Trp Lys Gly Glu Gly Ala Val Val Ile Gln Asp Asn Ser 1295 1300 1305Asp Ile Lys Val Val Pro Arg Arg Lys Ala Lys Ile Ile Arg Asp 1310 1315 1320Tyr Gly Lys Gln Met Ala Gly Asp Asp Cys Val Ala Ser Arg Gln 1325 1330 1335Asp Glu Asp Met Ala Gly Lys Trp Ser Lys Ser Ser Ile Val Gly 1340 1345 1350Trp Pro Ala Val Arg Glu Arg Ile Arg Arg Ala Glu Pro Ala Ala 1355 1360 1365Glu Gly Val Gly Ala Ala Ser Gln Asp Leu Asp Lys Tyr Gly Ala 1370 1375 1380Leu Thr Ser Ser Asn Thr Ala Ala Thr Asn Ala Asp Cys Ala Trp 1385 1390 1395Leu Glu Ala Gln Glu Asp Glu Glu Val Gly Phe Pro Val Lys Pro 1400 1405 1410Gln Val Pro Leu Arg Pro Met Thr Tyr Lys Ala Ala Phe Asp Leu 1415 1420 1425Ser Phe Phe Leu Lys Glu Lys Gly Gly Leu Asp Gly Leu Ile Tyr 1430 1435 1440Ser Lys Lys Arg Gln Glu Ile Leu Asp Leu Trp Val Tyr Asn Thr 1445 1450 1455Gln Gly Phe Phe Pro Asp Trp Gln Asn Tyr Thr Pro Gly Pro Gly 1460 1465 1470Val Arg Tyr Pro Leu Thr Phe Gly Trp Cys Phe Lys Leu Val Pro 1475 1480 1485Val Asp Pro Arg Glu Val Glu Glu Ala Asn Lys Gly Glu Asn Asn 1490 1495 1500Cys Leu Leu His Pro Met Asn Leu His Gly Met Asp Asp Pro Glu 1505 1510 1515Arg Glu Val Leu Val Trp Arg Phe Asp Ser Arg Leu Ala Phe His 1520 1525 1530His Met Ala Arg Glu Lys His Pro Glu Tyr Tyr Lys Asn Cys 1535 1540 1545

Claims

1-37. (canceled)

38. A protein comprising amino acids 30-724 of SEQ ID NO:2.

39. A pharmaceutical composition comprising the protein of claim 38 and a pharmaceutically acceptable carrier, excipient, or diluent.

40. The pharmaceutical composition of claim 39, further comprising an adjuvant.

41. The pharmaceutical composition of claim 40, wherein the adjuvant comprises an aluminum salt.

42. The pharmaceutical composition of claim 41, wherein the adjuvant comprises aluminum phosphate.

43. The pharmaceutical composition of claim 39, further comprising one or more additional HIV gp140 polypeptides.

44. The pharmaceutical composition of claim 43, wherein the one or more additional HIV gp140 polypeptides comprise at least one polypeptide comprising amino acids 30-708 of SEQ ID NO:3.

45. A composition comprising: (i) a first protein that comprises three gp140 polypeptides, wherein each of said three gp140 polypeptides comprises an amino acid sequence comprising amino acids 30-724 of SEQ ID NO: 2; (ii) a second protein that comprises three gp140 polypeptides, wherein each of said three gp140 polypeptides comprises an amino acid sequence comprising amino acids 30-708 of SEQ ID NO: 3; and (iii) aluminum phosphate.

46. The composition of claim 45, being a pharmaceutical composition.

47. The composition of claim 45, wherein the first protein and the second protein both are oligomeric proteins.

48. A method of preparing a composition, the composition comprising: (i) a first protein that comprises three gp140 polypeptides, wherein each of said three gp140 polypeptides comprises an amino acid sequence comprising amino acids 30-724 of SEQ ID NO: 2; and (ii) a second protein that comprises three gp140 polypeptides, wherein each of said three gp140 polypeptides comprises an amino acid sequence comprising amino acids 30-708 of SEQ ID NO: 3, the method comprising providing the first protein and the second protein and mixing the first and second protein into a composition.

49. The method of claim 48, further comprising providing an adjuvant and mixing the adjuvant into the composition.

50. The method of claim 49, wherein the adjuvant comprises an aluminum salt, such as aluminum phosphate.

51. A method of inducing an immune response against HIV in a subject, the method comprising administering to the subject the pharmaceutical composition of claim 39.

52. A method of inducing an immune response against HIV in a subject, the method comprising administering to the subject the pharmaceutical composition of claim 46.

53. A method of inducing an immune response against HIV in a subject, the method comprising administering to the subject a composition that has been obtained according to claim 48.

54. The method of claim 51, wherein the pharmaceutical composition is administered intramuscularly, intradermally, subcutaneously, or mucosally.

55. The method of claim 51, wherein said subject is administered at least one dose of said composition.

56. The method of claim 51, wherein the pharmaceutical composition is administered to said subject as a prime, a boost, or as a prime-boost.

57. The method of claim 52, comprising intramuscular administration.