recently we and others have demonstrated that various preparations of mammalian brain contain enzymes , the phosphatidylethanolamine n-methyltransferase ( pemt ) , which catalyse the synthesis of phosphatidylcholine ( pc ) , using s-adenosylmethionine ( sam ) as a methyl donor for the stepwise methylation of phosphatidylethanolamine ( pe ) .
C0070788
phosphatidylethanolamine n-methyltransferase
C0025723
methylation