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Chemical structure of a phospholipid as exampled by 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) and the different alternative headgroups varying in the type of alcohol: phosphatidylethanolamine (PE) with ethanolamine, phosphatidylglycerol (PG) with glycerol, phosphatidylserine (PS) with serine, and phosphatidylinositol (PI) with inositol.
