CysteineChemical ProcessesCysteine DioxygenaseSulfur CompoundsTaurineMethionineSulfurDioxygenasesSulfatesCarboxy-LyasesGlutathioneCysteine EndopeptidasesCysteine ProteasesAmino Acids, SulfurMethionine Sulfoxide ReductasesCysteine SynthaseSulfur IsotopesMolecular Sequence DataAmino Acid SequenceSulfur DioxideCysteine Proteinase InhibitorsMethionine AdenosyltransferaseOxidation-ReductionCystineDisulfidesSulfhydryl CompoundsSulfidesEnergy MetabolismLipid MetabolismS-AdenosylmethionineKinetics5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseMustard GasThiosulfatesCystathionineEscherichia coliBase SequenceMutagenesis, Site-DirectedMutationLiverAmino AcidsOxidoreductases Acting on Sulfur Group DonorsBinding SitesSequence Homology, Amino AcidModels, MolecularRecombinant ProteinsOxidoreductasesMethionyl AminopeptidasesSulfur OxidesCathepsinsHomocysteineCystathionine gamma-LyaseChromatography, High Pressure LiquidCloning, MolecularBacterial ProteinsCarbon-Sulfur LyasesProtein ConformationLyasesCystatinsSulfhydryl ReagentsSubstrate SpecificityMetabolismSulfurtransferasesPapainCystathionine beta-SynthaseGlucoseProtein BindingProtein Structure, TertiarySulfur RadioisotopesSerine O-AcetyltransferaseCathepsin LElectrophoresis, Polyacrylamide GelHydrogen-Ion ConcentrationStructure-Activity RelationshipNitrogenMass SpectrometrySequence AlignmentAmino Acid SubstitutionCathepsin BCatalysisIron-Sulfur ProteinsHydrogen SulfideDithiothreitolCarbon IsotopesCell LineEthylmaleimideChlorobiCarbon-Oxygen LyasesSulfinic AcidsMethionine SulfoximineS-AdenosylhomocysteineModels, BiologicalMolecular WeightDithionitrobenzoic AcidCulture MediaCarbon RadioisotopesSulfitesIronSulfonium CompoundsTime Factors