CysteineCysteine DioxygenaseSulfur CompoundsTaurineDioxygenasesSulfatesCarboxy-LyasesGlutathioneAmino Acid SequenceMolecular Sequence DataCysteine EndopeptidasesDisulfidesCysteine ProteasesMutagenesis, Site-DirectedBinding SitesSulfhydryl CompoundsModels, MolecularBase SequenceOxidation-ReductionSequence Homology, Amino AcidProtein ConformationCysteine Proteinase InhibitorsKineticsCysteine SynthaseMutationRecombinant ProteinsProtein Structure, TertiaryEscherichia coliSulfhydryl ReagentsProtein BindingAmino Acid SubstitutionStructure-Activity RelationshipCloning, MolecularEthylmaleimideDithionitrobenzoic AcidSequence AlignmentLipid MetabolismCystineProtein Structure, SecondaryEnergy MetabolismSubstrate SpecificityChromatography, High Pressure LiquidDithiothreitolAmino AcidsPeptide FragmentsReducing AgentsBacterial ProteinsCatalysisCell LineConserved SequenceIodoacetamideElectrophoresis, Polyacrylamide GelPeptidesIodoacetic AcidHistidineHydrogen-Ion ConcentrationCatalytic DomainMass Spectrometry4-ChloromercuribenzenesulfonateAlanineIodoacetatesCathepsinsProtein Processing, Post-TranslationalMesylatesAlkylationLiverCrystallography, X-RayDimerizationPapainSulfurMagnetic Resonance SpectroscopyCattleTrypsinCystatinsProtein FoldingDNA, ComplementaryCircular DichroismDNA PrimersMutagenesisLipoylationMembrane ProteinsProteinsMolecular WeightZincPeptide MappingThioredoxinsHydrolysisCarbon-Sulfur LyasesSulfenic AcidsCell MembraneOxidoreductasesMethionineMolecular StructureRecombinant Fusion ProteinsPoint MutationTransfectionDNACathepsin LPlasmidsCathepsin B