PteridinesMolybdenumCoenzymesMetalloproteinsMetal Metabolism, Inborn ErrorsBrain Diseases, Metabolic, InbornOxidoreductases Acting on Sulfur Group DonorsPurine-Pyrimidine Metabolism, Inborn ErrorsSulfurtransferasesSulfitesTungstenXanthine DehydrogenaseNitrate ReductasesAldehyde OxidasePterinsNitrate ReductaseSulfite OxidaseXanthine OxidaseTungsten CompoundsNitrogenaseMolybdoferredoxinHeparin Cofactor IISulfurNitrate Reductase (NADH)Aldehyde OxidoreductasesOxidoreductasesDeficiency DiseasesElectron Spin Resonance SpectroscopyRhodobacter capsulatusVitamin A DeficiencyIron-Sulfur ProteinsOxidation-ReductionAzotobacter vinelandiiFormate DehydrogenasesIsotopesMolecular Sequence DataChloratesalpha 1-Antitrypsin DeficiencyIronVitamin B 12 DeficiencyMutationAzotobacterKineticsAmino Acid SequenceXanthineEscherichia coliVitamin D DeficiencySulfite DehydrogenaseThiamine DeficiencyCatalysisFolic Acid DeficiencyIgA DeficiencySpectrophotometryNitrogen FixationPQQ CofactorBinding SitesModels, MolecularBacterial ProteinsFlavin-Adenine DinucleotideDithioniteCopperDesulfovibrio gigasOrganometallic CompoundsGlucosephosphate Dehydrogenase DeficiencyApoenzymesProtein BindingMetalloexopeptidasesMice, KnockoutBase SequenceCrystallography, X-RayMagnesium DeficiencyTrace ElementsSequence Homology, Amino AcidAnemia, Iron-DeficiencyVitamin E DeficiencyTracheobiontaAscorbic Acid DeficiencyMilkSulfidesSeleniumZincLiverImmunologic Deficiency SyndromesBiopterinProtein C DeficiencyFerredoxinsSubstrate SpecificityFormatesIgG DeficiencyMetalsNitratesChlorellaVitamin B 6 DeficiencyTricarboxylic AcidsEscherichia coli ProteinsMolecular StructureAntithrombin III DeficiencyRecombinant ProteinsMethanobacteriumHydrogen-Ion Concentration