choline/ethanolamine kinase Ethanolamine- phosphate cytidylyltransferase phosphatidylserine synthase phosphatidylserine decarboxylase choline/ethanolaminephosphotransferase PC(20:3(5Z,8Z,11Z)/16:0) Ethanolamine ATP O- Phosphoethanolamine ADP H + Cytidine triphosphate PP i CDP- Ethanolamine L-Serine Choline PS(20:3(5Z,8Z,11Z)/16:0) PS(20:3(5Z,8Z,11Z)/16:0) PE(20:3(5Z,8Z,11Z)/16:0) CO 2 DG(20:3(5Z,8Z,11Z)/16:0/0:0) Cytidine monophosphate PE(20:3(5Z,8Z,11Z)/16:0) Phosphatidylcholine Biosynthesis Endoplasmic Reticulum Membrane Mitochondrial Outer Membrane Cytosol Endoplasmic Reticulum Lumen Mitochondrial Intermembrane Spance Mitochondrial Matrix Mitochondrial Inner Membrane
