CysteineSulfhydryl CompoundsNitrosationCucurbitacinsCysteine DioxygenaseDisulfidesOxidation-ReductionS-NitrosothiolsAmino Acid SequenceMolecular Sequence DataCysteine EndopeptidasesCysteine ProteasesMutagenesis, Site-DirectedProtein Processing, Post-TranslationalBinding SitesNitric OxideModels, MolecularSulfhydryl ReagentsProtein ConformationCysteine SynthaseCysteine Proteinase InhibitorsSequence Homology, Amino AcidBase SequenceDithionitrobenzoic AcidKineticsProtein Structure, TertiaryRecombinant ProteinsMutationEscherichia coliProtein BindingAmino Acid SubstitutionDithiothreitolCystineEthylmaleimideStructure-Activity RelationshipCloning, MolecularGlutathioneProtein Structure, SecondarySequence AlignmentIodoacetamideAmino AcidsReducing AgentsSubstrate SpecificityPeptide FragmentsCatalysisIodoacetic AcidIodoacetatesElectrophoresis, Polyacrylamide Gel4-ChloromercuribenzenesulfonateAlkylationConserved SequencePapainBacterial ProteinsChromatography, High Pressure LiquidPeptidesHistidineCathepsinsHydrogen-Ion ConcentrationCell LineCatalytic DomainMesylatesThioredoxinsTrypsinDimerizationSulfenic AcidsCrystallography, X-RayAlanineSulfurProtein FoldingCystatinsCircular DichroismMass SpectrometryMolecular WeightCattlePeptide MappingLipoylationMutagenesisZincDNA, ComplementaryDNA Primersp-Chloromercuribenzoic AcidMembrane ProteinsProteinsCross-Linking ReagentsEndopeptidasesCathepsin BCarbon-Sulfur LyasesCathepsin LOxidoreductasesOxidoreductases Acting on Sulfur Group DonorsMaleimidesHydrolysisGlutaredoxinsCell MembranePoint MutationRecombinant Fusion ProteinsMolecular StructureDiamideMagnetic Resonance SpectroscopyPlasmids