Medical Definition of Phospholipase A2
An enzyme that catalyses the hydrolysis of a lecithin to a lysolecithin by removing the 2-acyl group; also acts on other phospholipids by removing a fatty acid from the 2-position; this enzyme has an important role in prostaglandin and leukotriene biosynthesis.
Synonym: lecithinase A, phosphatidase, phosphatidolipase.
(05 Mar 2000)
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