Phosphatidylglycerophosphate Synthase 1 (PGS1)

Phosphatidylglycerophosphate Synthase 1 belongs to the family of transferases, specifically those transferring non-standard substituted phosphate groups. The systematic name of this enzyme class is CDP-diacylglycerol:sn-glycerol-3-phosphate 3-phosphatidyltransferase. This enzyme participates in glycerophospholipid metabolism.Autoradiograms of replica prints, following enzyme assays, showed dark halos indicating the enzymatic synthesis of labeled phospholipid products. The method was also used to detect a cho 1 mutant defective in phosphatidylserine synthase and a strain that overproduces phosphatidylserine synthase. The method should become a valuable tool in isolating yeast strains defective in phospholipid biosynthetic enzyme activities and strains with overproduced enzyme activities.