HydrogenHydrogen PeroxideHydrogen BondingHydrogen SulfideModels, MolecularOxidative StressCrystallography, X-RayProtein ConformationBinding SitesMolecular Sequence DataProtein Structure, SecondaryMolecular StructureAmino Acid SequenceThermodynamicsModels, ChemicalMolecular ConformationWaterMagnetic Resonance SpectroscopyProtein BindingKineticsProtein Structure, TertiaryCatalysisOxidation-ReductionNuclear Magnetic Resonance, BiomolecularStructure-Activity RelationshipMolecular Dynamics SimulationComputer SimulationCatalytic DomainProtonsMutagenesis, Site-DirectedHydrogen-Ion ConcentrationMutationSubstrate SpecificityProtein FoldingHydrogen CyanideSolventsStatic ElectricityTemperatureLigandsDisulfidesBase PairingX-Ray DiffractionPeptidesDeuterium Exchange MeasurementNucleic Acid ConformationEscherichia coliBase SequenceBacterial ProteinsAmino Acid SubstitutionHistidineStereoisomerismQuantum TheoryCrystallizationProteinsCysteineRecombinant ProteinsOxidantsSolutionsHydrophobic and Hydrophilic InteractionsSteroid IsomerasesCrystallographyCatalaseDNAOxygenModels, BiologicalSequence Homology, Amino AcidKetosteroidsDimerizationCircular DichroismBiocatalysisAsparagineSpectrum Analysis, RamanSequence AlignmentPhotoreceptors, MicrobialAspartic AcidAmidesSpectroscopy, Fourier Transform InfraredCystathionine gamma-LyasePhylogenyPeroxidasesMass SpectrometryProtein DenaturationTime FactorsSpectrophotometry, InfraredElectronsComamonas testosteroniHalorhodospira halophilaMolecular Docking SimulationAmino AcidsHydrogenaseCalorimetrySignal TransductionHydroxyl RadicalEnzyme StabilityProtein MultimerizationEvolution, MolecularHydrolysisAmino Acid MotifsHydroxidesTyrosine