phosphatidic acid

Phosphatidic acid (PA) is the simplest natural glycerophospholipid in living organisms consisting of glycerol, an acyl chain, and a phosphate. As a minor component in biological membranes (about 1-4% of membrane lipids), PA is still involved in multiple intracellular processes. For example, PA is an intermediate for other phospholipids, acts as a lipid second messenger, and is also a modulator of physicochemical properties of the membrane.

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