2.7.7.39	evolution	the enzyme is a member of the cytidylyltransferase family of enzymes that utilize cytidine 5'-triphosphate (CTP) to synthesize molecules that are typically precursors to membrane phospholipids	737438	
2.7.7.39	metabolism	the enzyme catalyzes conversion of phosphocholine and CTP to cytidine diphosphocholine (CDP-choline), a step critical for synthesis of the membrane phospholipid phosphatidylcholine	737438