Amino Acid SubstitutionAmino Acid SequenceAmino AcidsMolecular Sequence DataSequence Homology, Amino AcidMutationMutagenesis, Site-DirectedBase SequenceCloning, MolecularSequence AlignmentModels, MolecularBinding SitesStructure-Activity RelationshipProtein ConformationProtein Structure, TertiaryEscherichia coliPoint MutationRecombinant ProteinsProtein BindingKineticsPhylogenyCell LineAmino Acid MotifsSubstrate SpecificityProtein Structure, SecondaryPeptide FragmentsEvolution, MolecularAmino Acid Transport SystemsSequence Analysis, DNAConserved SequenceRecombinant Fusion ProteinsBacterial ProteinsMutagenesisPlasmidsCodonMutation, MissenseDNA Mutational AnalysisDNA, ComplementaryDNA PrimersDNAAlaninePeptidesLeucineSpecies SpecificityAmino Acids, EssentialGenetic VariationLysineProlineProteinsSequence Homology, Nucleic AcidIsoleucinePolymerase Chain ReactionGlycineArginineTransfectionViral ProteinsMutant ProteinsSequence DeletionSaccharomyces cerevisiaeAllelesEpitopesPhenotypeElectrophoresis, Polyacrylamide GelCarrier ProteinsCOS CellsCatalysisCysteinePhenylalanineRestriction MappingGlutamineCattleThreonineMembrane ProteinsCricetinaeMolecular WeightSerineMethionineChromatography, High Pressure LiquidEscherichia coli ProteinsRNA, MessengerGenes, BacterialDNA-Binding ProteinsAmino Acids, AromaticCapital ExpendituresBiological TransportHydrolysisMacromolecular SubstancesTemperatureCercopithecus aethiopsViral Envelope ProteinsCircular DichroismAspartic AcidAmino Acids, Branched-ChainCell MembraneProtein Processing, Post-TranslationalProtein BiosynthesisAmino Acids, SulfurSelection, GeneticCapsid ProteinsChickens