when developing cotyledons are labeled with [ 3h ] glucosamine and glycopeptides of pha present in the golgi complex isolated , the radioactivity can be released as [ 3h ] n-acetylglucosamine by digestion of the glycopeptides with beta-n-acetylglucosaminidase , indicating that the residues are in a terminal position .
C0017718
glucosamine
C0001056
n-acetylglucosamine