CatalysisEnzymesBiocatalysisCatalytic DomainKineticsModels, MolecularProtein ConformationBinding SitesModels, ChemicalHydrogen-Ion ConcentrationSubstrate SpecificityMolecular Sequence DataAmino Acid SequenceCrystallography, X-RayMutagenesis, Site-DirectedStructure-Activity RelationshipMolecular StructureStereoisomerismProtein BindingProtein Structure, TertiaryEscherichia coliRecombinant ProteinsSequence Homology, Amino AcidMutationHydrolysisLigandsAmino Acid SubstitutionHydrogen BondingProtein Structure, SecondaryBase SequenceHistidineMolecular ConformationRNA, CatalyticOxidation-ReductionSequence AlignmentThermodynamicsCationsAntibodies, CatalyticIonsAlkenesAspartic AcidMetalsAnionsMagnesiumVisual CortexDrug DesignStatic ElectricityCysteineBacterial ProteinsProtonsEnzyme StabilityCloning, MolecularCyclizationBinding, CompetitiveIon Channel GatingAdenosine TriphosphateConserved SequenceWaterPhotic StimulationLysineOrientationMagnetic Resonance SpectroscopyRadioligand AssayEnzyme InhibitorsDose-Response Relationship, DrugNucleic Acid ConformationCations, DivalentChromatography, High Pressure LiquidPalladiumModels, BiologicalMolecular Dynamics SimulationTemperatureNeuronsCell LineInhibitory Concentration 50DimerizationCations, MonovalentPeptidesArgininePoint MutationIminesDNASpectrophotometryManganeseAlaninePotassiumLewis AcidsOxidoreductasesKetonesMutagenesisProtein Structure, Quaternary