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Overview
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PI 3-kinase p85 alpha/gamma is a protein encoded by the PIK3R1 gene which is approximately 83, 5 kDa. PI 3-kinase p85 alpha/gamma is localised to the cytoplasm, nucleus and cis-Golgi network. It is involved in RET signalling, the IL-2 pathway, downstream signalling of activated FGFR2 and regulation of lipid metabolism. It binds to activated protein-Tyr kinases, through its SH2 domain, and acts as an adapter by mediating the association of the p110 catalytic unit to the plasma membrane. It is also necessary for the insulin-stimulated increase in glucose uptake and glycogen synthesis in insulin-sensitive tissues. PI 3-kinase p85 alpha/gamma isoform 2 is expressed in skeletal muscle and brain. Mutations in the PIK3R1 gene may result in Short syndrome and Pasli disease. STJ95078 was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen. This polyclonal antibody detects endogenous levels of PI 3-kinase p85 alpha/gamma protein.
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Overview