PteridinesXanthine OxidaseCoenzymesMolybdenumMetalloproteinsFormate DehydrogenasesXanthineXanthine DehydrogenasePterinsXanthinesSulfurtransferasesAllopurinolOxypurinolTungstenAldehyde OxidaseNADPH OxidaseHypoxanthineAldehyde OxidoreductasesTungsten CompoundsNitrate ReductaseNitrate ReductasesSuperoxidesOxidoreductases Acting on Sulfur Group DonorsHypoxanthinesOxidoreductasesFree RadicalsOxidation-ReductionSulfurMilkElectron Spin Resonance SpectroscopyGuanine NucleotidesUric AcidFlavin-Adenine DinucleotideCytosine NucleotidesGlucose OxidaseSuperoxide DismutaseKineticsMonoamine OxidaseHydroxidesIron-Sulfur ProteinsReactive Oxygen SpeciesChloratesUrate OxidaseProtein-Lysine 6-OxidaseHydrogen PeroxideSpectrophotometryEscherichia coliHydroxyl RadicalMolecular Sequence DataGuanosine MonophosphateOxygenCatalaseChromatography, High Pressure LiquidCattleHeparin Cofactor IIFree Radical ScavengersCatalysisAmino Acid SequencePurinesDithioniteSulfite DehydrogenaseEnzyme InhibitorsNADH, NADPH OxidoreductasesOxidative StressSpectrophotometry, UltravioletKetone OxidoreductasesCyclic N-OxidesD-Amino-Acid OxidaseMolecular StructureElectron TransportBinding SitesAntioxidantsOrganometallic CompoundsNADAcetophenonesAspergillus nidulansFlavinsMonoamine Oxidase InhibitorsEscherichia coli ProteinsSequence Homology, Amino AcidNitric OxideProtein BindingBacterial ProteinsOnium CompoundsModels, MolecularLiverModels, ChemicalGalactose OxidaseUricosuric AgentsProtein ConformationMultienzyme ComplexesMethanobacteriumBenzaldehydesOxidantsRhodobacter sphaeroidesAscorbate OxidaseCalnexinMutationIronFormates