. "Edited: Williams, MG, 2011-08-12"^^ . "Authored: Williams, MG, 2011-09-14"^^ . "Phosphatidylcholine (PC) is hydrolyzed to phosphatidic acid (PA) and choline (Cho) by the enzymes phospholipase D1/2 (PLD1/2), at the endoplasmic reticulum (ER) membrane (Lopez et al. 1998, Hammond et al. 1995)."^^ . . . . . . . "PC is hydrolyzed to PA and choline by PLD1/2"^^ . "3.1.4.4"^^ . . . . . . . .