Choline/ethanolaminephosphotransferase 1
Cytidine triphosphate + O-Phosphoethanolamine → CDP-ethanolamine + Pyrophosphate
CDP-ethanolamine + DG(22:0/14:0/0:0) → Cytidine monophosphate + PE(22:0/14:0)
Phosphatidylserine decarboxylase proenzyme
Phosphatidylethanolamine Biosynthesis PE(22:0/14:0)
Ethanolamine-phosphate cytidylyltransferase
Adenosine triphosphate + Ethanolamine → Adenosine diphosphate + Hydrogen Ion + O-Phosphoethanolamine