Sulfur IsotopesCarbon-Carbon LyasesCarbon IsotopesChemical FractionationIsotopesMethyl ChlorideSulfur-Reducing BacteriaBiodegradation, EnvironmentalOxygen IsotopesEthylene DichloridesDesulfitobacteriumDeuteriumIsotope LabelingXanthobacterSulfidesHyphomicrobiumCarbon Compounds, InorganicIron IsotopesSulfatesTolueneEpsilonproteobacteriaXylenesMethaneTetrachloroethyleneGeologic SedimentsNitrogen IsotopesBacteria, AerobicHydrogenAerobiosisAnaerobiosisCell FractionationOxidation-ReductionChromatography, GasMass SpectrometryCarbon DioxideKineticsBacteriaZinc IsotopesFractionation, Field FlowHydrogen-Ion ConcentrationSubcellular FractionsThermodynamicsStrontium IsotopesMolecular WeightRadioisotope Dilution TechniqueMathematicsProtein BindingMolecular Sequence DataModels, ChemicalTemperatureChromatography, GelDialysisAmino Acid SequenceIndicator Dilution TechniquesElectrophoresis, Polyacrylamide GelBinding SitesAmino AcidsModels, BiologicalProtein ConformationUltracentrifugationCell MembraneMagnetic Resonance SpectroscopyChromatographyChromatography, Ion ExchangeGas Chromatography-Mass SpectrometryCattleChromatography, LiquidModels, MolecularEscherichia coliTritiumSubstrate SpecificitySpectrometry, FluorescenceChemistry Techniques, AnalyticalCarbon RadioisotopesChromatography, High Pressure LiquidMacromolecular SubstancesWaterCatalysisLiverTime FactorsProteinsCentrifugation, IsopycnicEvolution, PlanetarySpectrophotometryProteomicsDeuterium OxideCircular DichroismProtein DenaturationRabbitsMethodsMolecular StructureRadioisotopesProtein FoldingMercury IsotopesCell LineSpectrophotometry, UltravioletChemistryBiological TransportMagnesiumPeptides