MolybdenumOxygenPteridinesCoenzymesMetalloproteinsTungstenXanthine DehydrogenaseNitrate ReductasesAldehyde OxidaseOxygen ConsumptionNitrate ReductaseSulfite OxidaseReactive Oxygen SpeciesSulfurtransferasesPterinsXanthine OxidaseTungsten CompoundsOxidoreductases Acting on Sulfur Group DonorsNitrogenaseNitrate Reductase (NADH)SulfurAldehyde OxidoreductasesElectron Spin Resonance SpectroscopyMolybdoferredoxinRhodobacter capsulatusOxidoreductasesOxidation-ReductionIsotopesOxygen Inhalation TherapySinglet OxygenOxygen IsotopesMetal Metabolism, Inborn ErrorsFormate DehydrogenasesIron-Sulfur ProteinsXanthineChloratesAzotobacter vinelandiiAzotobacterSulfite DehydrogenaseNitrogen FixationSpectrophotometryOrganometallic CompoundsDesulfovibrio gigasDithioniteEscherichia coliSulfitesMetalloexopeptidasesTracheobiontaKineticsAnaerobiosisNitratesSulfidesCatalysisIronChlorellaTrace ElementsBacterial ProteinsMilkMolecular Sequence DataNitrobacterFormatesHyperbaric OxygenationMetalsHydrogen-Ion ConcentrationMethanobacteriumPartial PressureHumic SubstancesCopper