L-aspartic acid 1-amide -0.98000001907348632812 -0.98401600122451782227 131.0456695556640625 131.1100006103515625 Amide H 1 N 1 O -1 3,4-diamino-4-oxobutanoic acid AspN isoasparagine C 4 H 7 N 2 O 3 natural MOD:00093 L-aspartic acid 1-amide (2S)-2-amino-1-butanediamic acid C-term 3-amino-succinamic acid Amidated A protein modification that effectively converts an L-aspartic acid residue to L-aspartic acid 1-amide. MOD_RES Aspartic acid 1-amide PSI-MOD alpha-asparagine 1-amidated L-aspartic acid D Amidation C1-amidated residue modified L-aspartic acid residue