CatalysisBiocatalysisKineticsCatalytic DomainModels, MolecularSubstrate SpecificityBinding SitesCrystallography, X-RayMolecular Sequence DataMutagenesis, Site-DirectedAmino Acid SequenceProtein ConformationEscherichia coliModels, ChemicalHydrogen-Ion ConcentrationRNA, CatalyticHydrolysisProtein Structure, TertiaryHistidineMolecular StructureProtein BindingStructure-Activity RelationshipRecombinant ProteinsMutationOxidation-ReductionAntibodies, CatalyticSequence Homology, Amino AcidStereoisomerismBase SequenceHydrogen BondingAmino Acid SubstitutionEnzymesEnzyme StabilityAspartic AcidProtein Structure, SecondaryMetalsSequence AlignmentThermodynamicsMagnesiumMolecular ConformationCysteineBacterial ProteinsProtonsConserved SequenceCloning, MolecularAdenosine TriphosphateOxidoreductasesSpectrophotometryLysineTemperatureNucleic Acid ConformationProton-Translocating ATPasesManganeseNADPFlavinsArginineDimerizationProtein Structure, QuaternaryAlkenesCyclizationCrystallizationMagnetic Resonance SpectroscopyFlavin-Adenine DinucleotideOxygenPhosphatesCircular DichroismNADDiethyl PyrocarbonateAsparagineIminesZincElectron Spin Resonance SpectroscopyHemeWaterEscherichia coli ProteinsChemistry, OrganicLewis AcidsEnzyme ActivationProtein FoldingDNA PrimersPalladiumQuantum TheorySpectrophotometry, UltravioletAlanineCobamidesHydrogenIsomerismLigandsElectronsStatic ElectricitySulfhydryl CompoundsCations, DivalentChromatography, High Pressure LiquidSaccharomyces cerevisiaeAldehydesAmino Acid MotifsTime FactorsChorismate MutaseMutagenesisDNA