FUNCTION: SwissProt: P48736 # 3-phosphorylates the cellular phosphoinositide PtdIns- 4,5-biphosphate (PtdIns(4,5)P2) to produce PtdIns-3, 4,5- triiphosphate (PtdIns(3,4,5)P3). Links G-protein coupled receptor activation to the secondary messenger PtdIns(3,4,5)P3 production.
SIZE: 1102 amino acids; 126454 Da
SUBUNIT: Heterodimer of a catalytic subunit (PIK3CG/p120) and a regulatory (PIK3R5a/p101) subunit.
TISSUE SPECIFICITY: Pancreas, skeletal muscle, liver and heart.
SIMILARITY: SwissProt: P48736 ## Belongs to the PI3/PI4-kinase family. & Contains 1 PI3K/PI4K domain.