N-methylglycine 14.015649795532226562 14.029999732971191406 71.03711700439453125 71.0800018310546875 NMe1Gly MOD_RES N-methylglycine PSI-MOD C 3 H 5 N 1 O 1 Sarcosine L-sarcosine Sarcosyl N-methylated glycine C 1 H 2 A protein modification that effectively converts a glycine residue to N-methylglycine. Methyl natural G methylaminoacetic acid methylaminoethanoic acid N-term MOD:00072 Sar Methylation N-methylglycine DeltaMass also has an entry for the free amino acid. Polypeptides with monomethylated amino terminals can undergo premature cleavage during the coupling step of an Edman degradation. This can result in "preview" with both a residue and the following residue being seen from the first step on through a sequence [JSG]. methylated glycine alpha-amino monomethylated residue