Amino Acid SubstitutionAmino Acid SequenceMolecular Sequence DataSequence Homology, Amino AcidAmino AcidsBase SequenceMutationMutagenesis, Site-DirectedCloning, MolecularSequence AlignmentModels, MolecularStructure-Activity RelationshipPoint MutationBinding SitesEscherichia coliSequence Homology, Nucleic AcidProtein ConformationProtein Structure, TertiarySequence Analysis, DNARecombinant ProteinsKineticsPhylogenyMutation, MissenseProtein BindingCell LineBacterial ProteinsEvolution, MolecularDNA Mutational AnalysisMutagenesisPlasmidsCodonSubstrate SpecificityDNAGenetic VariationDNA, ComplementaryAmino Acid MotifsConserved SequenceProtein Structure, SecondaryPolymerase Chain ReactionDNA PrimersPeptide FragmentsRestriction MappingRecombinant Fusion ProteinsSpecies SpecificityAlaninePhenotypePeptidesProteinsGenes, BacterialAllelesViral ProteinsAmino Acids, EssentialGlycineLeucineTransfectionDNA, BacterialAmino Acid Transport SystemsSaccharomyces cerevisiaeCarrier ProteinsProlineAspartic AcidGenesSequence HomologySequence DeletionEnzyme StabilityElectrophoresis, Polyacrylamide GelLysineCricetinaeCysteineArginineRNA, MessengerCatalysisEpitopesEscherichia coli ProteinsMutant ProteinsDNA-Binding ProteinsSequence Analysis, ProteinTranscription, GeneticCOS CellsIsoleucineValinePolymorphism, GeneticMolecular WeightExonsMembrane ProteinsCattleGene LibraryViral Envelope ProteinsTemperatureOpen Reading FramesSerineSelection, GeneticGenetic Complementation TestVirus ReplicationCercopithecus aethiopsTrypsinModels, GeneticSequence AnalysisProtein EngineeringHydrolysis