2-imino-glutamic acid 5-imidazolinone glycine -20.026214599609375 -20.030000686645507812 166.037841796875 166.1300048828125 2-(3-carboxy-1-iminopropyl)-1-carboxymethyl-1-imidazolin-5-one 2,N-didehydroglutamyl-5-imidazolinone glycine Cross-link 2; carboxamidine; incidental to RESID:AA0183; incidental to RESID:AA0365. CROSSLNK 2-iminomethyl-5-imidazolinone (Glu-Gly) 4-[1-(carboxymethyl)-5-oxo-4,5-dihydro-1H-imidazol-2-yl]-4-iminobutanoic acid C 7 H 6 N 2 O 3 hypothetical PSI-MOD A protein modification that effectively crosslinks an L-glutamic acid residue and a glycine residue to form 2-imino-glutamic acid 5-imidazolinone glycine. E, G MOD:00383 [2-(3-carboxy-1-iminopropyl)-5-oxo-4,5-dihydro-imidazol-1-yl]-acetic acid para-hydroxybenzylidene-imidazolidinone chromophore 2-imino-glutamic acid 5-imidazolinone glycine 2-imino-glutamyl-5-imidazolinone glycine H -4 O -1 none 5-imidazolinone ring crosslinked residues (Gly) crosslinked L-glutamic acid residue crosslinked glycine residue