Phosphatidylcholine Biosynthesis PC(16:0/20:0)
Choline-phosphate cytidylyltransferase A
Choline/ethanolaminephosphotransferase 1
Cytidine triphosphate + O-Phosphoethanolamine → CDP-ethanolamine + Pyrophosphate
Phosphatidylserine decarboxylase proenzyme
Ethanolamine-phosphate cytidylyltransferase
CDP-Choline + DG(16:0/20:0/0:0) → Cytidine monophosphate + Hydrogen Ion + PC(16:0/20:0)
CDP-ethanolamine + DG(16:0/20:0/0:0) → Cytidine monophosphate + PE(16:0/20:0)
PE-NMe2(16:0/20:0) + S-Adenosylmethionine → PC(16:0/20:0) + S-Adenosylhomocysteine
PE-NMe(16:0/20:0) + S-Adenosylmethionine → PE-NMe2(16:0/20:0) + S-Adenosylhomocysteine
PE(16:0/20:0) + S-Adenosylmethionine → PE-NMe(16:0/20:0) + S-Adenosylhomocysteine
Phosphatidylethanolamine N-methyltransferase
Adenosine triphosphate + Ethanolamine → Adenosine diphosphate + Hydrogen Ion + O-Phosphoethanolamine
Cytidine triphosphate + Phosphorylcholine → CDP-Choline + Pyrophosphate
Adenosine triphosphate + Choline → Adenosine diphosphate + Phosphorylcholine