Patent application number | Description | Published |
20080262204 | RECOMBINANT ANTIBODIES FOR THE DETECTION AND NEUTRALIZATION OF ANTHRAX TOXIN - A composition and method for treating a host having or at risk of infection by | 10-23-2008 |
20090123921 | IMMUNOGLOBULIN LIBRARIES - Methods and compositions for the screening and isolation of ligand-binding polypeptides, such as antibodies. In some aspects, methods of the invention enable the isolation of intact soluble antibodies comprising a constant domain. Screening methods that employ genetic packages such as bacteria and bacteriophages enable high through-put identification of ligand binding molecules. | 05-14-2009 |
20090136936 | IMMUNOGLOBULIN FC LIBRARIES - Methods and composition for the screening and isolation of aglycosylated antibody Fc domain polypeptides. For example, in certain aspects methods for identifying aglycosylated Fc domains that bind to Fc receptors or preferentially bind to particular Fc receptors are described. Furthermore, the invention provides aglycosylated Fc domains that bind to Fc receptors with high affinity. Enhanced methods and media for prokaryotic based interaction screening are also provided. | 05-28-2009 |
20090220952 | Compositions And Methods For Analyzing Protein Interactions - The present invention relates to compositions and methods for analyzing and modulating (e.g., enhancing or inhibiting) protein-protein interactions. In particular, compositions and methods of the present invention find use in identifying, reconstituting and characterizing protein-protein interactions, identifying binding subunits, and drug screening. The methods and compositions of the invention may also be used to identify agents that may agonize or antagonize a protein-protein interaction (e.g., using test compounds). | 09-03-2009 |
20090238813 | Compositions And Methods For Engineered Human Arginine Deiminases - The present invention discloses the engineering of a human enzyme with arginine hydrolytic activity suitable for human therapy. An enzyme comprising of a human sequence is not likely to induce adverse immunological responses and thus is expected to constitute a superior therapeutic. Since the human genome does not encode arginases with the proper high affinity catalytic properties (i.e., for example, a low Km and high catalytic activity, kcat) an appropriate arginase can be engineered by modifying an enzyme with related catalytic activity. For example, the human enzyme PAD4 can hydrolyze arginine in peptide substrates but does not have activity for free arginine. First, a high throughput assay was developed for detecting arginine activity by monitoring the formation of the hydrolytic product citrulline. Then, using a combination of rational design and iterative mutation and screening PAD4 mutants were identified and isolated exhibiting high affinity free arginine metabolic activity. These mutants did not retain activity for their original substrate, peptidyl arginine. | 09-24-2009 |
20100111925 | Compositions of Engineered Human Arginases and Methods for Treating Cancer - Compositions and methods for the treatment of cancer are described, and, more preferably, to the treatment of cancers that do not express, or are otherwise deficient in, argininosuccinate synthetase, with enzymes that deplete L-Arginine in serum. In one embodiment, the present invention contemplates an arginase protein, such as a human Arginase I protein, comprising at least one amino acid substitution and a metal cofactor, said protein comprising an increased catalytic activity when compared with a native human Arginase I. | 05-06-2010 |
20100330076 | IMMUNOGLOBULIN FC POLYPEPTIDES - Methods and compositions involving polypeptides having an aglycosylated antibody Fc domain. In certain embodiments, polypeptides have an aglycosylated Fc domain that contains one or more substitutions compared to a native Fc domain. Additionally, some embodiments involve an Fc domain that is binds some Fc receptors but not others. For example, polypeptides are provided with an aglycosylated Fe domain that selectively binds FcγRI at a level within 2-fold of a glycosylated Fc domain, but that is significantly reduced for binding to other Fc receptors. Furthermore, methods and compositions are provided for promoting antibody-dependent cell-mediated toxicity (ADCC) using a polypeptide having a modified aglycosylated Fc domain and a second non-Fc binding domain, which can be an antigen binding region of an antibody or a non-antigen binding region. Some embodiments concern antibodies with such polypeptides, which may have the same or different non-Fc binding domain. | 12-30-2010 |
20110046011 | SECRETION OF PROTEINS WITH MULTIPLE DISULFIDE BONDS IN BACTERIA AND USES THEREOF - The invention provides methods for using the Twin Arginine Translocation pathway in bacteria to produce heterologous polypeptides that have multiple disulfide bonds. Methods of screening polypeptide libraries produced by secretion through the TAT pathway are also provided. The invention provides improved methods for production of heterologous polypeptides having at least one disulfide bond. | 02-24-2011 |
20110053803 | METHODS FOR CREATING ANTIBODY LIBRARIES - Methods and composition for the preparation of gene libraries of antibodies or parts of antibodies which contain the variable domains. For example, in certain aspects methods for providing polynucleotide library involving annealing and extending are described. Furthermore, the invention provides polynucleotide or antibody fragment libraries prepared by the methods. | 03-03-2011 |
20110200576 | ENGINEERED ENZYMES WITH METHIONINE-GAMMA-LYASE ENZYMES AND PHARMACOLOGICAL PREPARATIONS THEREOF - Methods and composition related to the engineering of a novel protein with methionine-γ-lyase enzyme activity are described. For example, in certain aspects there may be disclosed a modified cystathionine-γ-lyase (CGL) comprising one or more amino acid substitutions and capable of degrading methionine. Furthermore, certain aspects of the invention provide compositions and methods for the treatment of cancer with methionine depletion using the disclosed proteins or nucleic acids. | 08-18-2011 |
20110312505 | Rapid Isolation of Monoclonal Antibodies from Animals - Methods and compositions for identification of candidate antigen-specific variable regions as well as generation of antibodies or antigen-binding fragments that could have desired antigen specificity are provided. For example, in certain aspects methods for determining amino acid sequences of serum antibody CDR and abundancy level are described. In some aspects, methods for determining nucleic acid sequences of antibody variable region sequences and frequency are provided. Furthermore, the invention provides methods for identification and generation of antibody or antigen-binding fragments that comprise highly-represented CDR. | 12-22-2011 |
20120108466 | IMMUNOGLOBULIN LIBRARIES - Methods and compositions for the screening and isolation of ligand-binding polypeptides, such as antibodies. In some aspects, methods of the invention enable the isolation of intact soluble antibodies comprising a constant domain. Screening methods that employ genetic packages such as bacteria and bacteriophages enable high through-put identification of ligand binding molecules. | 05-03-2012 |
20120148559 | COMPOSITIONS AND METHOD FOR DEIMMUNIZATION OF PROTEINS - The invention provides deimmunized mutant proteins having reduced immunogenicity while exhibiting substantially the same or greater biological activity as the proteins of interst from which they are derived, as exemplified by mutant L-asparaginase that comprises amino acid substitutions compared to wild type L-asparaginase. The invention further provides methods for screening mutant deimmunized proteins that have substantially the same or greater biological activity as a protein of interest, and methods for reducing immunogenicity, without substantially reducing biological activity, of a protein of interest. | 06-14-2012 |
20120177628 | ARGINASE FORMULATIONS AND METHODS - Methods and composition for generation of arginase variants with high serum persistence are provided. For example, in certain aspects methods for purifying pegylated arginase are described. Furthermore, the invention provides stabilized arginase multimers or pharmaceutical composition thereof. | 07-12-2012 |
20120208238 | ENGINEERED IMMUNOGLOBULIN FC POLYPEPTIDES - Methods and compositions involving polypeptides having an aglycosylated antibody Fc domain. In certain embodiments, polypeptides have an aglycosylated Fc domain that contains one or more substitutions compared to a native Fc domain. Additionally, some embodiments involve an Fc domain that is binds some Fc receptors but not others. For example, polypeptides are provided with an aglycosylated Fc domain that selectively binds FcγRIIa, but that is significantly reduced for binding to the highly homologous FcγRIIb receptors. Furthermore, methods and compositions are provided for promoting antibody-dependent cell-mediated toxicity (ADCC) using a polypeptide having a modified aglycosylated Fc domain and a second non-Fc binding domain, which can be an antigen binding region of an antibody or a non-antigen binding region. Some embodiments concern antibodies with such polypeptides, which may have the same or different non-Fc binding domain. | 08-16-2012 |
20130178370 | PROTEOMIC IDENTIFICATION OF ANTIBODIES - Methods and compositions for identification of candidate antigen-specific variable regions as well as generation of antibodies or antigen-binding fragments that could have desired antigen specificity are provided. For example, in certain aspects, methods for determining amino acid sequences of serum antibody CDR3 and abundancy levels are described. In some aspects, methods for determining nucleic acid sequences of antibody variable region sequences and the frequency thereof in biological samples are provided. Furthermore, the invention provides methods for identification and generation of antibodies or antigen-binding fragments that comprise highly-represented CDR domains. | 07-11-2013 |
20130273022 | COMPOSITIONS OF ENGINEERED HUMAN ARGINASES AND METHODS FOR TREATING CANCER - Compositions and methods for the treatment of cancer are described, and, more preferably, to the treatment of cancers that do not express, or are otherwise deficient in, argininosuccinate synthetase, with enzymes that deplete L-Arginine in serum. In one embodiment, the present invention contemplates an arginase protein, such as a human Arginase I protein, comprising at least one amino acid substitution and a metal cofactor, said protein comprising an increased catalytic activity when compared with a native human Arginase I. | 10-17-2013 |
20130303393 | IMMUNOGLOBULIN LIBRARIES - Methods and compositions for the screening and isolation of ligand-binding polypeptides, such as antibodies. In some aspects, methods of the invention enable the isolation of intact soluble antibodies comprising a constant domain. Screening methods that employ genetic packages such as bacteria and bacteriophages enable high through-put identification of ligand binding molecules. | 11-14-2013 |
20140017764 | METHOD FOR ENGINEERING PROTEASES AND PROTEIN KINASES - Provided are methods for protein engineering, such as engineering proteases or kinases. The methods may utilize yeast display and/or ER sequestration of proteins or substrates. In some aspects, TEV proteases with altered substrate specificity, potency, and/or efficiency are provided. | 01-16-2014 |
20140179550 | IMMUNOGLOBULIN FC LIBRARIES - Methods and composition for the screening and isolation of aglycosylated antibody Fc domain polypeptides. For example, in certain aspects methods for identifying aglycosylated Fc domains that bind to Fc receptors or preferentially bind to particular Fc receptors are described. Furthermore, the invention provides aglycosylated Fc domains that bind to Fc receptors with high affinity. Enhanced methods and media for prokaryotic based interaction screening are also provided. | 06-26-2014 |
20140235482 | IMMUNOGLOBULIN FC POLYPEPTIDES - Methods and compositions involving polypeptides having an aglycosylated antibody Fc domain. In certain embodiments, polypeptides have an aglycosylated Fc domain that contains one or more substitutions compared to a native Fc domain. Additionally, some embodiments involve an Fc domain that is binds some Fc receptors but not others. For example, polypeptides are provided with an aglycosylated Fc domain that selectively binds FcγRI at a level within 2-fold of a glycosylated Fc domain, but that is significantly reduced for binding to other Fc receptors. Furthermore, methods and compositions are provided for promoting antibody-dependent cell-mediated toxicity (ADCC) using a polypeptide having a modified aglycosylated Fc domain and a second non-Fc binding domain, which can be an antigen binding region of an antibody or a non-antigen binding region. Some embodiments concern antibodies with such polypeptides, which may have the same or different non-Fc binding domain. | 08-21-2014 |
20140242060 | COMPOSITIONS OF ENGINEERED HUMAN ARGINASES AND METHODS FOR TREATING CANCER - Compositions and methods for the treatment of cancer are described, and, more preferably, to the treatment of cancers that do not express, or are otherwise deficient in, argininosuccinate synthetase, with enzymes that deplete L-Arginine in serum. In one embodiment, the present invention contemplates an arginase protein, such as a human Arginase I protein, comprising at least one amino acid substitution and a metal cofactor, said protein comprising an increased catalytic activity when compared with a native human Arginase I. | 08-28-2014 |
20140287484 | ENGINEERED ENZYMES WITH METHIONINE-GAMMA-LYASE ENZYMES AND PHARMACOLOGICAL PREPARATIONS THEREOF - Methods and composition related to the engineering of a novel protein with methionine-γ-lyase enzyme activity are described. For example, in certain aspects there may be disclosed a modified cystathionine-γ-lyase (CGL) comprising one or more amino acid substitutions and capable of degrading methionine. Furthermore, certain aspects of the invention provide compositions and methods for the treatment of cancer with methionine depletion using the disclosed proteins or nucleic acids. | 09-25-2014 |
20150064154 | ADMINISTRATION OF KYNURENINE DEPLETING ENZYMES FOR TUMOR THERAPY - Methods and compositions related to the use of a protein with kynureninase activity are described. For example, in certain aspects there may be disclosed a modified kynureninase capable of degrading kynurenine. Furthermore, certain aspects of the invention provide compositions and methods for the treatment of cancer with kynurenine depletion using the disclosed proteins or nucleic acids. | 03-05-2015 |
20150064159 | ENGINEERED PRIMATE L-METHIONINASE FOR THERAPEUTIC PURPOSES - Methods and compositions relating to the engineering of an improved protein with methionine-γ-lyase enzyme activity are described. For example, in certain aspects there may be disclosed a modified cystathionine-γ-lyase (CGL) comprising one or more amino acid substitutions and capable of degrading methionine. Furthermore, certain aspects of the invention provide compositions and methods for the treatment of cancer with methionine depletion using the disclosed proteins or nucleic acids. | 03-05-2015 |
20150064160 | ENGINEERED PRIMATE CYSTINE/CYSTEINE DEGRADING ENZYMES AS ANTINEOGENIC AGENTS - Methods and compositions related to the engineering of a protein with L-cyst(e)ine degrading enzyme activity are described. For example, in certain aspects there may be disclosed a modified cystathionine-γ-lyase comprising one or more amino acid substitutions and capable of degrading L-cyst(e)ine. Furthermore, certain aspects of the invention provide compositions and methods for the treatment of cancer with L-cyst(e)ine using the disclosed proteins or nucleic acids. | 03-05-2015 |