N6-glycyl-L-lysine -18.010564804077148438 -18.020000457763671875 184.1085968017578125 184.220001220703125 PSI-MOD CROSSLNK Glycyl lysine isopeptide (Lys-Gly) (interchain with G-...) C-term XLNK-N6Lys-1Gly MOD:00134 N6-glycyllysine natural N6-(glycyl)-L-lysine CROSSLNK Glycyl lysine isopeptide (Gly-Lys) (interchain with K-...) H -2 O -1 (2S)-2-amino-6-[(aminoacetyl)amino]hexanoic acid G, K Cross-link 2; this is the common crosslink structure formed by ubiquitin, SUMO, and similar proteins. C 8 H 14 N 3 O 2 A protein modification that effectively crosslinks an L-lysine residue and a glycine residue by an isopeptide bond to form N6-glycyl-L-lysine. isopeptide crosslinked residues crosslinked residues with loss of water N6-acylated L-lysine crosslinked glycine residue crosslinked L-lysine residue