In enzymology, a diacylglycerol cholinephosphotransferase (EC 2.7.8.2) is an enzyme that catalyzes the chemical reaction
- CDP-choline + 1,2-diacylglycerol CMP + a phosphatidylcholine
Thus, the two substrates of this enzyme are CDP-choline and 1,2-diacylglycerol, whereas its two products are CMP and phosphatidylcholine.
This enzyme belongs to the family of transferases, specifically those transferring non-standard substituted phosphate groups. The systematic name of this enzyme class is CDP choline:1,2-diacylglycerol cholinephosphotransferase. Other names in common use include phosphorylcholine-glyceride transferase, alkylacylglycerol cholinephosphotransferase, 1-alkyl-2-acetylglycerol cholinephosphotransferase, cholinephosphotransferase, CPT, alkylacylglycerol choline phosphotransferase, diacylglycerol choline phosphotransferase, 1-alkyl-2-acetyl-m-glycerol:CDPcholine choline phosphotransferase, CDP-choline diglyceride phosphotransferase, cytidine diphosphocholine glyceride transferase, cytidine diphosphorylcholine diglyceride transferase, phosphocholine diacylglyceroltransferase, sn-1,2-diacylglycerol cholinephosphotransferase, and 1-alkyl-2-acetyl-sn-glycerol cholinephosphotransferase. This enzyme participates in 3 metabolic pathways: aminophosphonate metabolism, glycerophospholipid metabolism, and ether lipid metabolism.