2,5-dimethylpyrrole lysine from 2,5-hexanedione adduct 206.14190673828125 206.279998779296875 78.0469512939453125 78.1100006103515625 C 12 H 18 N 2 O 1 There is no citation for this Unimod entry. Add PubMed:7981420, correct spelling [JSG]. 2,5-dimethypyrrole K none MOD:00627 PSI-MOD (2S)-2-amino-6-(2,5-dimethylpyrrolidin-1-yl)hexanoic acid artifact DimethylpyrroleAdduct 6-(2,5-dimethylpyrrolidin-1-yl)norleucine modification from Unimod Chemical derivative C 6 H 6 reagent derivatized residue modified L-lysine residue