N-glycosylated residue modified L-arginine residue omega-N-glycosyl-L-arginine (2S)-2-amino-5-(beta-D-glucopyranosyl[imino(methylamino)methyl]amino)pentanoic acid A protein modification that effectively converts an L-arginine residue to N4-glycosyl-arginine. Hex Hexose MOD:01980 NG-beta-D-glucosylarginine PSI-MOD R Unimod:41 natural omega-N-(beta-D-glucosyl)-L-arginine omega-N-glucosyl-L-arginine omega-N-glycosyl-L-arginine