CatalysisModels, BiologicalComputer SimulationGene Expression Regulation, DevelopmentalMolecular Sequence DataSignal TransductionKineticsBiocatalysisModels, MolecularCatalytic DomainBinding SitesSubstrate SpecificityCrystallography, X-RayAmino Acid SequenceMutagenesis, Site-DirectedProtein ConformationEscherichia coliModels, ChemicalHydrogen-Ion ConcentrationProtein Structure, TertiaryProtein BindingRNA, CatalyticHydrolysisMutationMolecular StructureHistidineBase SequenceStructure-Activity RelationshipRecombinant ProteinsSequence Homology, Amino AcidOxidation-ReductionStereoisomerismAntibodies, CatalyticHydrogen BondingAmino Acid SubstitutionEnzymesSequence AlignmentEnzyme StabilityThermodynamicsProtein Structure, SecondaryMetalsAspartic AcidMagnesiumMolecular ConformationBacterial ProteinsConserved SequenceProtonsCysteineCloning, MolecularAdenosine TriphosphateNucleic Acid ConformationTemperatureOxidoreductasesLysineSpectrophotometryProton-Translocating ATPasesManganeseDimerizationProtein Structure, QuaternaryNADPFlavinsArginineOxygenCrystallizationProtein FoldingWaterAlkenesCyclizationMagnetic Resonance SpectroscopyCircular DichroismFlavin-Adenine DinucleotidePhosphatesNADEscherichia coli ProteinsDNA PrimersQuantum TheoryEnzyme ActivationSaccharomyces cerevisiaeZincDiethyl PyrocarbonateDNAHemeLigandsElectron Spin Resonance SpectroscopyAsparagineIminesElectronsTime FactorsChemistry, OrganicStatic ElectricityLewis AcidsAmino Acid MotifsPalladiumHydrogenSpectrophotometry, UltravioletAlanineMutagenesisCobamidesIsomerismSulfhydryl Compounds