O-glycosyl-L-serine O-(2-acetamido-4-glyceramido-2,4,6-trideoxy-D-glucosyl)-L-serine (2S)-2-amino-3-[(2-acetamido-4-glycerylamino-2,4,6-trideoxy-D-glucopyranosyl)oxy]propanoic acid 274.116485595703125 274.269989013671875 361.148529052734375 361.350006103515625 A protein modification that effectively converts an L-serine residue to O-(2-acetamido-4-glyceramido-2,4,6-trideoxy-D-glucosyl)-L-serine. C 11 H 18 N 2 O 6 C 14 H 23 N 3 O 8 CARBOHYD O-linked (GATDGlc) serine GATDH MOD:01964 O-(2-acetamido-4-glyceramido-2,4,6-trideoxy-D-glucopyranosyl)-L-serine O-(2-acetamido-4-glyceramido-2,4,6-trideoxy-D-glucosyl)-L-serine O-(N2-acetyl-N4-glycerylbacillosaminyl)-L-serine PSI-MOD S natural uniprot.ptm:PTM-0549