Abstract: The instant invention provides TCRs having one or more amino acid substitutions that bind to the AL9 epitope of the HIV protein vpr (AIIRILQQL (SEQ ID NO: 1)).

Abstract: The instant invention provides soluble fusion protein complexes and IL-15 variants that have therapeutic and diagnostic use, and methods for making the such proteins. The instant invention additionally provides methods of stimulating or suppressing immune responses in a mammal using the fusion protein complexes and IL-15 variants of the invention.

Abstract: The invention includes methods of inhibiting blood coagulation using antibodies that provide superior anti-coagulant activity by binding native human TF with high affinity and specificity. Methods of the invention can effectively inhibit blood coagulation in vivo. Antibodies used in the methods of the invention can bind native human TF, either alone or present in a TF:VIIa complex, effectively preventing factor X binding to TF or that complex, and thereby reducing blood coagulation. Preferred antibodies used in the methods of the invention specifically bind a conformational epitope predominant to native human TF, which epitope provides an unexpectedly strong antibody binding site.

Abstract: Disclosed are antibodies that provide superior anti-coagulant activity by binding native human TF with high affinity and specificity. Also disclosed are methods of using such antibodies to reduce cancer cell tissue factor activity and to detect cancer cells that express TF.

Abstract: The instant invention provides soluble fusion protein complexes and IL-15 variants that have therapeutic and diagnostic use, and methods for making thesuch proteins. The instant invention additionally provides methods of stimulating or suppressing immune responses in a mammal using the fusion protein complexes and IL-15 variants of the invention.

Abstract: The invention includes antibodies that provide superior anti-coagulant activity by binding native human TF with high affinity and specificity. Antibodies of the invention can effectively inhibit blood coagulation in vivo. Antibodies of the invention can bind native human TF, either alone or present in a TF:FVIIa complex, effectively preventing factor X or FIX binding to TF or that complex, and thereby reducing blood coagulation. Preferred antibodies of the invention specifically bind a conformational epitope predominant to native human TF, which epitope provides an unexpectedly strong antibody binding site. Also provided are humanized antibodies and fragments thereof that bind to the TF.

Abstract: Disclosed are methods for preventing or treating sepsis, a sepsis-related condition or an inflammatory disease in a mammal. In one embodiment, the method includes administering to the mammal a therapeutically effective amount of at least one humanized antibody, chimeric antibody, or fragment thereof that binds specifically to tissue factor (TF) to form a complex in which factor X or factor IX binding to the complex is inhibited and the administration is sufficient to prevent or treat the sepsis in the mammal. The invention has a wide spectrum of useful applications including treating sepsis, disorders related to sepsis, and inflammatory diseases such as arthritis.

Abstract: Disclosed is a method for preventing or treating thrombosis in a mammal such as a primate and particularly a human patient. A preferred method includes administering to the mammal a therapeutically effective amount of at least one humanized antibody, chimeric antibody, or fragment thereof that binds specifically to human tissue factor (TF). Additional methods and kits are provided.

Abstract: The invention includes antibodies that provide superior anti-coagulant activity by binding native human TF with high affinity and specificity. Antibodies of the invention can effectively inhibit blood coagulation in vivo. Antibodies of the invention can bind native human TF, either alone or present in a TF:VIIa complex, effectively preventing factor X binding to TF or that complex, and thereby reducing blood coagulation. Preferred antibodies of the invention specifically bind a conformational epitope predominant to native human TF, which epitope provides an unexpectedly strong antibody binding site.

Abstract: The invention provides T-cell receptor (TCR) molecules comprising a V? chain and a V? chain that bind peptides derived from the p53 protein, preferably, the human p53 protein. The TCR molecules include both heterodimeric molecules and single chain molecules which specifically bind a sequence preferably spanning about amino acid positions 264-272 of the p53 protein displayed in the context of an HLA molecule, preferably, HLA-A2.1. Also disclosed are methods for making and using such TCR molecules. The invention has a wide spectrum of useful application including therapeutic uses and use in the detection of cells expressing p53 protein.

Abstract: The invention provides T-cell receptor (TCR) molecules comprising a V? chain and a V? chain that bind peptides derived from the p53 protein, preferably, the human p53 protein. The TCR molecules include both heterodimeric molecules and single chain molecules which specifically bind a sequence preferably spanning about amino acid positions 264-272 of the p53 protein displayed in the context of an HLA molecule, preferably, HLA-A2.1. Also disclosed are methods for making and using such TCR molecules. The invention has a wide spectrum of useful application including therapeutic uses and use in the detection of cells expressing p53 protein.

Abstract: The invention includes pharmaceutically active compounds and methods of treatment and pharmaceutical compositions that utilize or comprise one or more such compounds. Compounds of the invention are particularly useful for treatment or prophylaxis of undesired thrombosis.

Abstract: The present invention relates to novel complexes of major histocompability complex (MHC) molecules and uses of such complexes. In one aspect, the invention relates to loaded MHC complexes that include at least one MHC molecule with a peptide-binding groove and a presenting peptide non-covalently linked to the MHC protein. In another aspect, the invention features single chain MHC class II peptide fusion complexes with a presenting peptide covalently linked to the peptide binding grove of the complex. MHC complexes of the invention are useful for a variety of applications including: 1) in vitro screens for identification and isolation of peptides that modulate activity of selected T cells, including peptides that are T cell receptor antagonists and partial agonists, and 2) methods for suppressing or inducing an immune response in a mammal.

Abstract: The present invention relates to novel complexes of major histocompability complex (MHC) molecules and uses of such complexes. In particular, the invention relates to MHC fusion complexes that contain a MHC molecule with a peptide-binding groove and a presenting peptide covalently linked to the MHC protein. Fusion complexes of the invention are useful for a variety of applications including in vitro screens for identification and isolation of peptides that modulate activity of selected T cells, including peptides that are T cell receptor antagonists and partial agonists, methods of suppressing an immune response of a mammal and methods for inducing an immune response in a mammal.

Abstract: The present invention relates to novel complexes of major histocompability complex (MHC) molecules and uses of such complexes. In one aspect, the invention relates to single chain MHC class II complexes that include a class II ?2 chain modification, e.g., deletion of essentially the entire class II ?2 chain. In another aspect, the invention features single chain MHC class II which comprise an immunoglobin constant chain or fragment. Further provided are polyspecific MHC complexes comprising at least one single chain MHC class II molecule. MHC complexes of the invention are useful for a variety of applications including: 1) in vitro screens for identification and isolation of peptides that modulate activity of selected T cells, including peptides that are T cell receptor antagonists and partial agonists, and 2) methods for suppressing or inducing an immune response in a mammal.

Abstract: The invention includes pharmaceutically active compounds and methods of treatment and pharmaceutical compositions that utilize or comprise one or more such compounds. Compounds of the invention are particularly useful for treating or prophylaxis of undesired thrombosis.

Abstract: Disclosed are methods for identifying compounds that modulate an immune complex that includes a T cell receptor (TCR) and a major histocompatibility complex (MHC) antigen. The invention has many useful applications including providing high throughput screening assays for detecting compositions that can modulate an immune response.

Abstract: The invention includes pharmaceutically active compounds and methods of treatment and pharmaceutical compositions that utilize or comprise one or more such compounds. Compounds of the invention are particularly useful for treatment or prophylaxis of undesired thrombosis.

Abstract: Disclosed is a method for treating blood coagulation in a mammal that has or is suspected of having septic shock syndrome. In one embodiment, the method includes administering to the mammal an effective amount of an antibody that binds tissue factor in a way that excludes Factor X (FX) binding. The invention has a wide range of useful applications including use to inhibit unwanted blood coagulation associated with sepsis.

Abstract: The invention includes pharmaceutically active compounds and methods of treatment and pharmaceutical compositions that utilize or comprise one or more such compounds. Compounds of the invention are particularly useful for treating or prophylaxis of undesired thrombosis.