Xanthine OxidaseXanthineOrganic ChemicalsXanthine DehydrogenaseXanthinesChemistry, OrganicEvolution, ChemicalOrganic Chemistry PhenomenaExobiologyBiogenesisMeteoroidsMolecular StructureSolventsWaterStereoisomerismModels, MolecularAlkenesCarboxylic AcidsCatalysisAllopurinolOxypurinolSurface PropertiesMolecular ConformationLigandsModels, ChemicalMagnetic Resonance SpectroscopyBinding SitesProtein BindingKineticsMolybdenumHypoxanthineDrug DesignOxidation-ReductionStructure-Activity RelationshipCrystallography, X-RayThermodynamicsProteinsCell Adhesion MoleculesHypoxanthinesFluorescent DyesAldehyde OxidaseModels, BiologicalPteridinesUric AcidKetone OxidoreductasesMolecular Sequence DataMilkSuperoxidesFree RadicalsPurinesAmino Acid SequenceTungstenSmall Molecule LibrariesCattleCells, CulturedHydroxidesElectron Spin Resonance SpectroscopyCell LineSuperoxide DismutaseBase SequenceSignal TransductionMetalloproteinsTungsten CompoundsFlavin-Adenine DinucleotideCoenzymesHydroxyl RadicalProtein ConformationEnzyme InhibitorsReactive Oxygen SpeciesTheobromineHydrogen PeroxideNeural Cell Adhesion MoleculesUrate OxidaseOxygenLiverFree Radical ScavengersRecombinant ProteinsIntercellular Adhesion Molecule-1NADDithioniteCatalaseMutationMolecular WeightMice, Inbred C57BLCell AdhesionAntibodies, MonoclonalRNA, MessengerDNAEscherichia coliProtein Structure, TertiaryEndothelium, VascularHydrogen-Ion ConcentrationAntigens, CDNucleobase Transport ProteinsNitric OxideTime FactorsDose-Response Relationship, DrugGuanine DeaminaseSubstrate SpecificityOxidative Stress