Phosphatidic acid (PA) is a minor component of cell membranes, constituting 1-2% of all phospholipids in humans. PA is made by phospholipase D from phosphatidylcholine and is used as a substrate for synthesis of other phospholipids. PA is implied to play a role in both vesicle fusion and fission. This analog is labeled on the sn-1 acyl chain with the green fluorophore Bodipy-FL.
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