in the second series of experiments , the purified phospholipase a2 showed preferential action toward pi ( 100 % ) compared to phosphatidylcholine ( pc , 62.5 % ) , phosphatidic acid ( pa , 32.6 % ) , phosphatidylethanolamine ( pe , 25.1 % ) and phosphatidylserine ( ps , 21.5 % ) , where each phosphoglyceride was labeled in the 2-position with [ 1-14c ] oleic acid .
C0031621
pi
C0162448
phosphoglyceride