has role L-alpha-amino acid L-methionine CHEBI:6271 HMDB:HMDB0000696 (S)-2-amino-4-(methylthio)butanoic acid CHEBI:13141 CHEBI:43990 CHEBI:21360 The L-enantiomer of methionine. L-Methionine (S)-methionine M KEGG:C00073 L-(-)-methionine (S)-2-amino-4-(methylthio)butyric acid METHIONINE KEGG:D00019 MetaCyc:MET L-methionine Methionine ECMDB:ECMDB00696 PDBeChem:MET_LFOH L-alpha-amino-gamma-methylmercaptobutyric acid KNApSAcK:C00001379 YMDB:YMDB00318 (2S)-2-amino-4-(methylsulfanyl)butanoic acid Met L-Methionin CHEBI:16643 DrugBank:DB00134 methionine D-methionine aspartate family amino acid micronutrient L-methioninate L-methioninium nutraceutical L-methionine zwitterion antidote to paracetamol poisoning mouse metabolite human metabolite proteinogenic amino acid