IsotopesIsotope LabelingDeuteriumOxygen IsotopesNitrogen IsotopesCarbon IsotopesKineticsHydrogenCatalysisBiocatalysisMetabolic Flux AnalysisNitroparaffinsModels, ChemicalProtonsOxidation-Reductiongamma-GlutamylcyclotransferaseHydrogen-Ion ConcentrationBenzyl AlcoholQuantum TheorySolventsDeuterium OxideBoranesSubstrate SpecificityRadioisotope Dilution TechniqueZinc IsotopesDeuterium Exchange MeasurementLipoxygenasesOrganic Chemistry PhenomenaThermodynamicsInosineSulfur IsotopesMolecular StructureMethylophilus methylotrophusStereoisomerismEnzymesModels, MolecularCobamidesIron IsotopesHydrolysisD-Amino-Acid OxidaseIntramolecular TransferasesPurine-Nucleoside PhosphorylaseOxidoreductases, N-DemethylatingHydroxylationTemperatureOrotate PhosphoribosyltransferaseFlavinsTritiumKetonesDeoxyadenosinesMass SpectrometryCarbonLipoxygenaseAlkenesCyclizationElectronsStrontium IsotopesOxygenasesAlcoholsMagnetic Resonance SpectroscopyEscherichia coliCatalytic DomainMolecular ConformationNADHydrogen BondingOrganometallic CompoundsAlcohol OxidoreductasesOxidoreductases Acting on CH-NH Group DonorsAlanineOxygenWaterElectron TransportMixed Function OxygenasesAspartic AcidSpectrophotometryBinding SitesSpectrum AnalysisNADPStructure-Activity RelationshipIndicator Dilution TechniquesMutagenesis, Site-DirectedCrystallography, X-RayCytochrome P-450 Enzyme SystemProtein ConformationMercury IsotopesGas Chromatography-Mass SpectrometryRecombinant ProteinsComputer SimulationBacterial ProteinsEvolution, PlanetaryRadioisotopesCarbon RadioisotopesChromatography, LiquidZinc RadioisotopesGeologic SedimentsMeteoroidsRadiometric DatingTandem Mass SpectrometryGeological PhenomenaFood Chain