Phospholipase A2, Group IID (PLA2G2D)

PLA2G2D, The extracellular forms of phospholipases A2 have been isolated from different venoms (snake, bee, and wasp), from virtually every studied mammalian tissue (including pancreas and kidney) as well as from bacteria. They require Ca2+ for activity.Pancreatic PLA2 serve for the initial digestion of phospholipid compounds in dietary fat. Venom phospholipases help to immobilize prey by promoting cell lysis.Analysis of enzymatic activity detected most activity in culture supernatant and determined that PLA2G2D preferentially hydrolyzes phosphatidylglycerol and phosphatidylethanolamine, followed by phosphatidylcholine, but does not hydrolyze phosphatidylserine or phosphatidic acid. Northern blot analysis revealed variable expression of 2.0- and 1.0-kb transcripts, with highest expression in pancreas and spleen.