contains modified L-proline residue N-acetylaminohexosylated residue O4-(N-acetylamino)hexosyl-L-hydroxyproline (2S,4R)-4-[2-acetamido-2-deoxy-alpha-D-hexopyranosyloxy]pyrrolidine-2-carboxylic acid 219.07427978515625 219.19000244140625 316.127044677734375 316.30999755859375 4-(N-acetylhexosaminyloxy)proline 4-[(2-N-acetylamino)-alpha-D-hexopyranosyl]oxyproline A protein modification that effectively converts an L-proline residue to O4-(N-acetylamino)hexosyl-L-hydroxyproline. C 13 H 20 N 2 O 7 C 8 H 13 N 1 O 6 HexNAc MOD:01677 O4-glycosyl-hydroxyproline O4HexNAcHyPro P PSI-MOD alpha-2-(N-acetylamino)hexopyranosyl-4-hydroxyproline natural secondary to RESID:AA0030