Answer to Question #42232 in Biochemistry for Rami
what elements required in phosphatidylserine synthesis can't be synthesized in human body?
Phosphatidylserine could be formed fromphosphatidylcholine. One of the ways of phosphatidylcholine synthesis is methylation of ethanolamine by S-Adenosyl-Methionine. For the appearance of the last one an essential amino acid methionin is required that can't be synthesized in human body.