Glycerophospholipids / Phospholipids

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1-Palmitoyl-rac-glycero-3-phosphocholine is a hydrophobic molecule that binds to the substrate binding site on the enzyme. This binding increases the fluorescence of fluorogenic substrates and provides information about the interaction between the substrate and enzyme. This protein has been shown to be localized in cellular membranes and cytosol, as well as in micelles and polymerized lipids. It is a member of a family of enzymes that catalyze phospholipid synthesis, including sphingomyelin, phosphatidylcholine, phosphatidylethanolamine, and phosphatidylserine. 1-Palmitoyl-rac-glycero-3-phosphocholine has been shown to have kinetic properties that are similar to those of pancreatic acyl coenzyme A:cholesterol acyltransferase.

1-Palmitoylglycol-2-phosphocholine (PPC) is a lipase inhibitor that is used as a research tool. It inhibits the activity of pancreatic and hepatic lipases by binding to the active site of these enzymes. PPC has been shown to inhibit the digestion of fatty acids in vitro, due to its specific inhibition of pancreatic lipase and diacylglycerol acyltransferase. This compound also has acid properties and can be titrimetrically analyzed for concentrations over 0.5 mg/mL in an assay mixture containing 1% phosphoric acid, sodium acetate buffer, potassium chloride, and water.