CysteineCysteine DioxygenaseSulfur CompoundsS-NitrosothiolsTaurineSulfhydryl CompoundsDioxygenasesOxidation-ReductionSulfatesCarboxy-LyasesGlutathioneAmino Acid SequenceMolecular Sequence DataCysteine EndopeptidasesDisulfidesCysteine ProteasesMutagenesis, Site-DirectedEnergy MetabolismLipid MetabolismBinding SitesKineticsModels, MolecularBase SequenceSequence Homology, Amino AcidMutationProtein ConformationCysteine Proteinase InhibitorsRecombinant ProteinsCysteine SynthaseEscherichia coliProtein Structure, TertiaryProtein BindingSulfhydryl ReagentsAmino Acid SubstitutionStructure-Activity RelationshipCloning, MolecularChromatography, High Pressure LiquidEthylmaleimideSequence AlignmentLiverDithionitrobenzoic AcidCystineProtein Structure, SecondarySubstrate SpecificityMetabolismGlucoseBacterial ProteinsCell LinePeptide FragmentsDithiothreitolAmino AcidsCatalysisReducing AgentsMass SpectrometryHydrogen-Ion ConcentrationConserved SequenceMagnetic Resonance SpectroscopyElectrophoresis, Polyacrylamide GelIodoacetamidePeptidesIodoacetic AcidAlanineHistidineCatalytic DomainSulfurIodoacetatesProtein Processing, Post-Translational4-ChloromercuribenzenesulfonateCattleAlkylationCathepsinsMesylatesCrystallography, X-RayDNA, ComplementaryDimerizationModels, BiologicalProteinsDNA PrimersPapainBiotransformationMembrane ProteinsOxidoreductasesTrypsinProtein FoldingZincHydrolysisMethionineMutagenesisCystatinsCircular DichroismMolecular StructureMolecular WeightCell MembraneMicrosomes, LiverCells, CulturedBiological TransportLipoylationCytochrome P-450 Enzyme SystemCarrier ProteinsTime Factors