Phosphatidic acid (PA) is a diacyl-glycerophospholipid, with two fatty acids and a phosphate group that are covalently attached to a glycerol molecule through ester linkages. PA is synthesized by the activity of the endogenous enzyme phospholipase D or by supplementation with soy lecithin.
Soy PA is suitable for use to study its effect on cell proliferation, nutrient sensing and to examine metabolic pathways in primary muscle cells of turbot (Scophthalmus maximus).