CysteineCysteine DioxygenaseSulfur CompoundsS-NitrosothiolsTaurineSulfhydryl CompoundsDioxygenasesSulfatesCarboxy-LyasesOxidation-ReductionGlutathioneCysteine EndopeptidasesCysteine ProteasesCysteine Proteinase InhibitorsCysteine SynthaseAmino Acid SequenceMolecular Sequence DataEnergy MetabolismLipid MetabolismDisulfidesCystineMutagenesis, Site-DirectedKineticsCathepsinsCystatinsMutationBase SequenceLiverBinding SitesSequence Homology, Amino AcidRecombinant ProteinsCathepsin LPapainMetabolismSulfhydryl ReagentsModels, MolecularCathepsin BEscherichia coliSulfurGlucoseChromatography, High Pressure LiquidCarbon-Sulfur LyasesProtein ConformationProtein Structure, TertiaryCloning, MolecularEthylmaleimideProtein BindingDithiothreitolSerine O-AcetyltransferaseSubstrate SpecificityMethionineAmino Acid SubstitutionStructure-Activity RelationshipMesylatesDithionitrobenzoic AcidSequence AlignmentBacterial ProteinsMass SpectrometryCell LineHydrogen-Ion ConcentrationBiotransformationIodoacetamideLyases