Catalytic DomainCatalysisMolecular Sequence DataAmino Acid SequenceBinding SitesSequence Homology, Amino AcidModels, MolecularMutagenesis, Site-DirectedRecombinant ProteinsProtein ConformationKineticsBase SequenceCrystallography, X-RaySequence AlignmentCloning, MolecularProtein BindingBiocatalysisSubstrate SpecificityProtein Structure, TertiaryEscherichia coliMutationStructure-Activity RelationshipRecombinant Fusion ProteinsProtein Structure, SecondaryConserved SequenceEnzyme StabilityAmino Acid SubstitutionHydrolysisMutagenesisAmino Acid MotifsHistidineDimerizationEnzyme ActivationPhosphorylationsrc Homology DomainsProtein Interaction Domains and MotifsDNA PrimersDNADNA, ComplementaryBacterial ProteinsSequence DeletionPoint MutationPeptide FragmentsMicrococcus luteusCysteineSaccharomyces cerevisiaeLysinePlasmidsProtein FoldingIsoenzymesTransfectionHydrogen-Ion ConcentrationProtein Structure, QuaternaryElectrophoresis, Polyacrylamide GelCell LineGlutathione TransferaseRNA, CatalyticTyrosineAlanineCircular DichroismModels, ChemicalCellulaseDNA, CatalyticChitinaseProtein MultimerizationPeptidesAspartic AcidHydrogen BondingDNA-Binding ProteinsEscherichia coli ProteinsAsparagineSignal TransductionCarrier ProteinsSerineLigandsNucleic Acid ConformationPhylogenyFungal ProteinsProtein EngineeringThreonineThermodynamicsRestriction MappingDisulfidesBlotting, WesternHeLa CellsTemperatureEvolution, MolecularCattleMembrane ProteinsMultienzyme ComplexesMacromolecular SubstancesTryptophanMolecular WeightCoenzymesTrypsinPhenylalanineModels, BiologicalPDZ DomainsTranscription, GeneticMagnetic Resonance Spectroscopy