CST, 11889S, PI3 Kinase p55 (D2B3) Rabbit Monoclonal Antibody

Monoclonal Antibody for studying PI3K p55. Validated for Western Blotting,Immunoprecipitation. Available in 2 sizes. Highly specific and rigorously validated in-house, PI3 Kinase p55 (D2B3) Rabbit Monoclonal Antibody (CST #11889) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:50 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting, Immunoprecipitation Specificity / Sensitivity PI3 Kinase p55 (D2B3) Rabbit Monoclonal Antibody recognizes endogenous levels of total PI3 kinase p55 (PIK3R3) protein. This antibody does not cross-react with PI3 kinase p85α (PIK3R1) or PI3 kinase p85β (PIK3R2) proteins. Species Reactivity: Human, Mouse Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the amino terminus of human PI3 kinase p55 protein. Background Phosphoinositide 3-kinase (PI3K) catalyzes the production of phosphatidylinositol-3,4,5-triphosphate by phosphorylating phosphatidylinositol (PI), phosphatidylinositol-4-phosphate (PIP), and phosphatidylinositol-4,5-bisphosphate (PIP ). Growth factors and hormones trigger this phosphorylation event, which in turn coordinates cell growth, cell cycle entry, cell migration, and cell survival (1). PTEN reverses this process, and research studies have shown that the PI3K signaling pathway is constitutively activated in human cancers that have loss of function of PTEN (2). PI3Ks are composed of a catalytic subunit (p110) and a regulatory subunit. Various isoforms of the catalytic subunit (p110α, p110β, p110γ, and p110δ) have been isolated, and the regulatory subunits that associate with p110α, p110β, and p110δ are p85α and p85β (3). In contrast, p110γ associates with a p101 regulatory subunit that is unrelated to p85. Furthermore, p110γ is activated by βγ subunits of heterotrimeric G proteins (4). Alternate Names 100% homology to SWISS-PROT Q92569; DKFZp686P05226; FLJ41892; p55; p55-GAMMA; P55G; p55PIK; Phosphatidylinositol 3-kinase 55 kDa regulatory subunit gamma; Phosphatidylinositol 3-kinase regulatory subunit gamma; phosphatidylinositol 3-kinase, regulatory subunit, polypeptide 3 (p55, gamma); phosphoinositide-3-kinase regulatory subunit 3; phosphoinositide-3-kinase, regulatory subunit 3 (gamma); phosphoinositide-3-kinase, regulatory subunit 3 (p55, gamma); phosphoinositide-3-kinase, regulatory subunit, polypeptide 3 (p55, gamma); PI3-kinase regulatory subunit gamma; PI3-kinase subunit p55-gamma; PI3K regulatory subunit gamma; PIK3R3; PtdIns-3-kinase regulatory subunit gamma; PtdIns-3-kinase regulatory subunit p55-gamma Specification REACTIVITY: H M SENSITIVITY: Endogenous MW (kDa): 55 Source/Isotype: Rabbit IgG