Glycine is useful in all of the following synthetic processes, EXCEPT:
Glycine is incorporated into creatine, and the nitrogen and -carbon of glycine are incorporated into the pyrrole rings and the methylene bridge carbons of heme, and the entire glycine molecule becomes atoms 4, 5, and 7 of purines. Following decarboxylation of S-adenosylmethionine by methionine decarboxylase, three carbons and the alpha-amino group of methionine contribute to the biosynthesis of the polyamines spermine and spermidine. Ref: Rodwell V.W. (2011). Chapter 30. Conversion of Amino Acids to Specialized Products. In D.A. Bender, K.M. Botham, P.A. Weil, P.J. Kennelly, R.K. Murray, V.W. Rodwell (Eds), Harper's Illustrated Biochemistry, 29e.
Purine synthesis
Creatine synthesis
Heme synthesis
Synthesis of spermine