Abstract: The invention relates to immobilized phosphatidic acid probes which can be used to identify important proteins for signal transduction, housekeeping and diagnosis.

Abstract: A novel protein useful as an anti-inflammatory target is described. Methods of making the protein, and use of the protein in assays for identification of anti-inflammatory agents are described. Methods of making knock-out mice for the gene encoding the protein are also desired.

Abstract: The present invention relates PI3K crystals, polypeptide muteins, polypeptide fragments, antibodies thereto, nucleic acids coding for these polypeptides, methods of modifying PI3K? activity, and methods of modulating PI3K? activity. These include polypeptides and methods thereof, relating to, e.g., phospholipid binding, lipid kinase activity, modulating Ras activity in activating the PI3K?, binding of PI3K? to cell membranes, and modulating protein—protein interactions with PI3K?.

Abstract: Probes comprising an immobilised Phosphatidic Acid attached onto a solid support are described, for example, as shown in formula I and V: (a) the linker consists of aryl, heteroaryl, alkyl with possible heteroatoms and/or unsaturations, preferably chains of (CH2)n, with n=8-20, most preferably n=11; (b) the heteroatom X maybe O, S, or most preferably NH; (c) the functional group (FG) is a carbonyl from a carboxylate (thiolo)ester, or, most preferably an amide; (d) the R-substituent carries an aryl, alkyl group, or a combination, preferably R=CmH2m+1, m=8-20, m=16 optimal; (e) the ion M represents any cation, preferably Na+, NH4+; (f) unsaturations are allowed, such as in an arachidonyl side chain and (g) =solid support with attachment to functional group, where: R=aryl, alkyl group, or a combination, preferably R=CmH2m+1, m=8-20, m=16 is optimal.

Abstract: The invention relates to a crystal comprising P13K and Ras, and to the use of such crystals in modelling the Ras-P13K interaction and in the design and/or screening of ligands capable of modulating this interaction

Abstract: Compositions and methods are described that are useful to assay for compouds that affect PKB kinase activity which have medical applications for the diagnosis and treatment of disease.

Abstract: The present invention relates PI3K crystals, polypeptide muteins, polypeptide fragments, antibodies thereto, nucleic acids coding for these polypeptides, methods of modifying PI3K&ggr; activity, and methods of modulating PI3K&ggr; activity. These include polypeptides and methods thereof, relating to, e.g., phospholipid binding, lipid kinase activity, modulating Ras activity in activating the PI3K&ggr;, binding of PI3K&ggr; to cell membranes, and modulating protein-protein interactions with PI3K&ggr;.

Abstract: The present invention relates to the discovery, identification and characterization of nucleotides that encode the G protein regulated phosphatidylinositol-3' kinase, a heterodimeric enzyme which produces the intracellular messenger phosphatidylinositol (3,4,5)-triphosphate in response to activation of trimeric G protein-linked receptors. This novel protein, comprised of a catalytic subunit, p120, and a regulatory subunit, p101, is found in cells of hematopoietic origin and is involved in immune system responses which cause inflammation. The presence of p101 subunit is largely responsible for the dramatic stimulation of kinase activity in the presence of activated trimeric G proteins.

Abstract: The present invention relates to the discovery, identification and characterization of nucleotides that encode the G protein regulated phosphatidylinositol-3' kinase, a heterodimeric enzyme which produces the intracellular messenger phosphatidylinositol (3,4,5)-triphosphate in response to activation of trimeric G protein-linked receptors. This novel protein, comprised of a catalytic subunit, p120, and a regulatory subunit, p101, is found in cells of hematopoietic origin and is involved in immune system responses which cause inflammation. The presence of p101 subunit is largely responsible for the dramatic stimulation of kinase activity in the presence of activated trimeric G proteins.

Abstract: The present invention relates to the discovery, identification and characterization of nucleotides that encode the G protein regulated phosphatidylinositol-3' kinase, a heterodimeric enzyme which produces the intracellular messenger phosphatidylinositol (3,4,5)-triphosphate in response to activation of trimeric G protein-linked receptors. This novel protein, comprised of a catalytic subunit, p120, and a regulatory subunit, p101, is found in cells of hematopoietic origin and is involved in immune system responses which cause inflammation. The presence of p101 subunit is largely responsible for the dramatic stimulation of kinase activity in the presence of activated trimeric G proteins.

Abstract: The present invention relates to the discovery, identification and characterization of nucleotides that encode the G protein regulated phosphatidylinositol-3' kinase, a heterodimeric enzyme which produces the intracellular messenger phosphatidylinositol (3,4,5)-triphosphate in response to activation of trimeric G protein-linked receptors. This novel protein, comprised of a catalytic subunit, p120, and a regulatory subunit, p101, is found in cells of hematopoietic origin and is involved in immune system responses which cause inflammation. The presence of p101 subunit is largely responsible for the dramatic stimulation of kinase activity in the presence of activated trimeric G proteins.

Abstract: The present invention relates to the discovery, identification and characterization of nucleotides that encode the G protein regulated phosphatidylinositol-3' kinase, a heterodimeric enzyme which produces the intracellular messenger phosphatidylinositol (3,4,5)-triphosphate in response to activation of trimeric G protein-linked receptors. This novel protein, comprised of a catalytic subunit, p120, and a regulatory subunit, p101, is found in cells of hematopoietic origin and is involved in immune system responses which cause inflammation. The presence of p101 subunit is largely responsible for the dramatic stimulation of kinase activity in the presence of activated trimeric G proteins.

Abstract: The present invention relates to the discovery, identification and characterization of nucleotides that encode the G protein regulated phosphatidylinositol-3'kinase, a heterodimeric enzyme which produces the intracellular messenger phosphatidylinositol (3,4,5)-triphosphate in response to activation of trimeric G protein-linked receptors. This novel protein, comprised of a catalytic subunit, p120, and a regulatory subunit, p101, is found in cells of hematopoietic origin and is involved in immune system responses which cause inflammation. The presence of p101 subunit is largely responsible for the dramatic stimulation of kinase activity in the presence of activated trimeric G proteins.