Reaction catalyzed by phosphatidylethanolamine N-methyltransferase (2.1.1.17)
3
+
=
3
+
+
2
3 S-adenosyl-L-methionine
+
phosphatidylethanolamine
=
3 S-adenosyl-L-homocysteine
+
phosphatidylcholine
+
2 H+
