has role methionine Hmet 2-amino-4-(methylsulfanyl)butanoic acid KEGG:D04983 CHEBI:6829 Wikipedia:Methionine metionina Methionin 2-amino-4-(methylthio)butanoic acid CHEBI:16811 A sulfur-containing amino acid that is butyric acid bearing an amino substituent at position 2 and a methylthio substituent at position 4. KEGG:C01733 Racemethionine CHEBI:14590 CHEBI:25229 alpha-amino-gamma-methylmercaptobutyric acid 2-Amino-4-(methylthio)butyric acid M DL-Methionine methionine Methionine Met sulfur-containing amino acid butyric acid methioninate methioninium alpha-amino acid methionine zwitterion Saccharomyces cerevisiae metabolite plant metabolite Escherichia coli metabolite Daphnia magna metabolite algal metabolite