HydrogenHydrogen BondingHydrogen PeroxideHydrogen SulfideHydrogen CyanideKiller Cells, NaturalModels, MolecularOxidantsOxidation-ReductionCatalaseDeuterium Exchange MeasurementMolecular Sequence DataCystathionine gamma-LyaseCrystallography, X-RayMolecular StructureProtein ConformationKineticsHydrogenaseWaterHydrogen-Ion ConcentrationModels, ChemicalMagnetic Resonance SpectroscopyPeroxidasesAmino Acid SequenceCatalysisBinding SitesSulfidesThermodynamicsMolecular ConformationHydroxyl RadicalFree RadicalsReactive Oxygen SpeciesProtein Structure, SecondaryProtonsOxygenTemperatureStereoisomerismMethaneGlucose OxidaseGasesBreath TestsBiological ProductsProtein BindingHydroxidesEscherichia coliMutationSuperoxide DismutaseLactuloseStructure-Activity RelationshipAmitroleSolventsAntioxidantsMass SpectrometryBacterial ProteinsSuperoxidesBase SequenceTime FactorsCystathionine beta-SynthaseSubstrate SpecificityNuclear Magnetic Resonance, BiomolecularAnaerobiosisProtein Structure, TertiaryOxidoreductasesElectron Spin Resonance SpectroscopyPeroxidesCatalytic DomainLigandsAmidesComputer SimulationFree Radical ScavengersRecombinant ProteinsCells, CulturedHorseradish PeroxidaseMutagenesis, Site-DirectedLactose IntoleranceProtein FoldingStatic ElectricityPeptidesPeroxiredoxinsGlutathioneFormatesQuantum TheoryAlkynesNucleic Acid ConformationElectrochemistryCysteineBase PairingCattleSpectrophotometryHypochlorous AcidSpectrum Analysis, RamanDNAIronSolutionsElectronsTooth BleachingProteinsFermentationHistidineDose-Response Relationship, Drug