Cytidine triphosphate + O-Phosphoethanolamine → CDP-ethanolamine + Pyrophosphate
Cytidine triphosphate + Phosphorylcholine → CDP-Choline + Pyrophosphate
PE(20:4(5Z,8Z,11Z,14Z)/18:2(9Z,12Z)) + S-Adenosylmethionine → PE-NMe(20:4(5Z,8Z,11Z,14Z)/18:2(9Z,12Z)) + S-Adenosylhomocysteine
Phosphatidylethanolamine N-methyltransferase
PE-NMe(20:4(5Z,8Z,11Z,14Z)/18:2(9Z,12Z)) + S-Adenosylmethionine → PE-NMe2(20:4(5Z,8Z,11Z,14Z)/18:2(9Z,12Z)) + S-Adenosylhomocysteine
Choline-phosphate cytidylyltransferase A
Phosphatidylserine decarboxylase proenzyme, mitochondrial
Phosphatidylcholine Biosynthesis PC(20:4(5Z,8Z,11Z,14Z)/18:2(9Z,12Z))
Ethanolamine-phosphate cytidylyltransferase
Adenosine triphosphate + Ethanolamine → Adenosine diphosphate + Hydrogen Ion + O-Phosphoethanolamine
Adenosine triphosphate + Choline → Adenosine diphosphate + Phosphorylcholine