crosslinked residues with loss of ammonia (2-aminosuccinimidyl)acetic acid (Asn) (2-aminosuccinimidyl)acetic acid (3-amino-2,5-dioxo-1-pyrrolidinyl)acetic acid -17.026548385620117188 -17.030000686645507812 154.037841796875 154.1300048828125 A protein modification that crosslinks an asparagine and the following glycine residue with the formation of (2-aminosuccinimidyl)acetic acid and the release of ammonia. C 0 H -3 N -1 O 0 C 6 H 6 N 2 O 3 CROSSLNK (2-aminosuccinimidyl)acetic acid (Asn-Gly) Cross-link 2. G, N MOD:01624 N-(2-aminosuccinyl)glycine PSI-MOD [(3S)-3-amino-2,5-dioxopyrrolidin-1-yl]acetic acid anhydroaspartyl glycine aspartimide glycine hypothetical uniprot.ptm:PTM-0450 (2-aminosuccinimidyl)acetic acid crosslinked L-asparagine residue