Photochemical ProcessesLightMetalsCatalysisKineticsModels, MolecularBinding SitesBiocatalysisCatalytic DomainSubstrate SpecificityZincCrystallography, X-RayMolecular Sequence DataAmino Acid SequenceCobaltMutagenesis, Site-DirectedManganeseProtein ConformationCopperMetals, AlkaliEscherichia coliHydrogen-Ion ConcentrationCations, DivalentNickelModels, ChemicalRNA, CatalyticHistidineMetals, Alkaline EarthMagnesiumProtein BindingMolecular StructureOxidation-ReductionHydrolysisProtein Structure, TertiaryIronRecombinant ProteinsBase SequenceStructure-Activity RelationshipSequence Homology, Amino AcidStereoisomerismIonsMutationChromiumEnzyme StabilityHydrogen BondingAntibodies, CatalyticAmino Acid SubstitutionChelating AgentsBacterial ProteinsThermodynamicsMetalloproteinsProtein Structure, SecondaryCoordination ComplexesCysteineEnzymesAspartic AcidSequence AlignmentLeadMolecular ConformationMercurySoil PollutantsPalladiumTemperatureElectron Spin Resonance SpectroscopySpectrophotometryProtonsCloning, MolecularMagnetic Resonance SpectroscopyMetals, Rare EarthNucleic Acid ConformationOxidoreductases