Amino Acid SubstitutionAmino Acid SequenceMolecular Sequence DataAmino AcidsSequence Homology, Amino AcidMutationBase SequenceMutagenesis, Site-DirectedCloning, MolecularSequence AlignmentModels, MolecularStructure-Activity RelationshipPoint MutationEscherichia coliBinding SitesProtein ConformationSequence Analysis, DNAPhylogenyProtein Structure, TertiaryKineticsRecombinant ProteinsMutation, MissenseEvolution, MolecularBacterial ProteinsProtein BindingCell LineSequence Homology, Nucleic AcidDNA Mutational AnalysisMutagenesisGenetic VariationCodonSubstrate SpecificityConserved SequenceAmino Acid MotifsPlasmidsProtein Structure, SecondaryPolymerase Chain ReactionDNA, ComplementaryDNADNA PrimersPeptide FragmentsSpecies SpecificityPhenotypeRestriction MappingAlanineRecombinant Fusion ProteinsDNA, BacterialAllelesProteinsPeptidesGenes, BacterialAmino Acids, EssentialViral ProteinsGlycineLeucineAmino Acid Transport SystemsAspartic AcidSaccharomyces cerevisiaeTransfectionEnzyme StabilityProlineElectrophoresis, Polyacrylamide GelSequence Analysis, ProteinLysineSequence DeletionArginineCysteineCarrier ProteinsCricetinaeCatalysisEscherichia coli ProteinsEpitopesMutant ProteinsIsoleucineValinePolymorphism, GeneticDNA-Binding ProteinsGenesRNA, MessengerTemperatureExonsTranscription, GeneticSelection, GeneticMolecular WeightViral Envelope ProteinsCattleCOS CellsVirus ReplicationSerineMembrane ProteinsModels, GeneticGenetic Complementation TestGenotypeSequence AnalysisGene LibraryCercopithecus aethiopsProtein EngineeringChromatography, High Pressure LiquidHydrolysisPhenylalanine