MethionineMethionine Sulfoxide ReductasesMethionine Adenosyltransferase5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseS-AdenosylmethionineMethionyl AminopeptidasesHomocysteineAmino Acids, SulfurCystathionineAmino AcidsMethionine SulfoximineEnkephalin, MethionineAminopeptidasesS-AdenosylhomocysteineCystineEthionineVitamin B 12Methionine-tRNA LigaseCysteineAmino Acid SequenceMolecular Sequence DataBetaine-Homocysteine S-MethyltransferaseSulfurThionucleosidesCystathionine beta-SynthaseSulfur RadioisotopesOxidation-ReductionEscherichia coliOxidoreductasesMethylationFolic AcidGlycine N-MethyltransferaseNorleucineSelenomethionineKineticsVitamin UMethyltransferasesLiverTetrahydrofolatesBase SequenceHomocystinuriaThioglycosidesIsoleucineMutationBetaineHyperhomocysteinemiaCarbon-Oxygen LyasesCholine DeficiencyProtein BiosynthesisHomocystineChloraminesCarbon IsotopesNutritional RequirementsFerredoxin-NADP ReductaseCholineDietMolecular WeightLeucineCarbon RadioisotopesSulfoxidesElectrophoresis, Polyacrylamide GelRNA, Transfer, MetCarbon-Sulfur LyasesGlycineSulfur IsotopesCloning, MolecularDietary ProteinsLysineSulfur CompoundsCystathionine gamma-LyaseNitrogenValineCysteine SynthaseMethylmalonyl-CoA MutaseMethylenetetrahydrofolate Reductase (NADPH2)Bacterial ProteinsHomoserine O-SuccinyltransferaseHomoserineGlutathioneAmino Acids, EssentialDeoxyadenosinesFormiminoglutamic AcidTaurineCulture MediaSulfonium CompoundsVitamin B 6ThreonineRecombinant ProteinsSulfatesVitamin B 12 DeficiencyChromatography, High Pressure LiquidLyasesModels, MolecularStereoisomerismFolic Acid DeficiencySerineSubstrate SpecificityBinding SitesHypochlorous AcidSulfhydryl Compounds