N-acetyl-L-aspartic acid 158.0453338623046875 158.1300048828125 42.01056671142578125 42.04000091552734375 natural AcAsp D acetylaspartic acid N-term (2S)-2-(acetamido)butanedioic acid C 6 H 8 N 1 O 4 2-(acetylazanyl)butanedioic acid 2-(acetylamino)butanedioic acid C 2 H 2 O 1 N-acetyl-L-aspartic acid A protein modification that effectively converts an L-aspartic acid residue to N-acetyl-L-aspartic acid. MOD:00051 Acetyl MOD_RES N-acetylaspartate PSI-MOD Acetylation N-acetylated L-aspartic acid modified L-aspartic acid residue alpha-amino acetylated residue