Amino AcidsSequence Homology, Amino AcidAmino Acid SequenceAmino Acid SubstitutionCloning, MolecularAmino Acids, EssentialAmino Acid Transport SystemsSequence AlignmentAmino Acid MotifsBase SequenceEscherichia coliMutationBinding SitesMutagenesis, Site-DirectedMolecular Sequence DataDNA, ComplementaryAmino Acids, AromaticSequence Homology, Nucleic AcidKineticsAmino Acids, Branched-ChainPeptide FragmentsAmino Acids, SulfurRecombinant ProteinsLeucineProtein ConformationModels, MolecularStructure-Activity RelationshipProtein Structure, TertiaryMolecular WeightSubstrate SpecificityDNAPeptidesProtein BindingSex AttractantsBacterial ProteinsRestriction MappingPhylogenyCell LineAlanineRecombinant Fusion ProteinsSequence Analysis, DNAGenes, BacterialSpecies SpecificityProteinsElectrophoresis, Polyacrylamide GelRNA, MessengerAmino Acid Transport Systems, BasicProtein Structure, SecondaryPlasmidsChromatography, High Pressure LiquidConserved SequenceIsoleucineAmino Acids, BasicCattleLysinePolyestersDNA PrimersCarrier ProteinsVolatilizationPolymersCodonNitrogenPowdersPheromonesMothsCyanogen BromideTrypsinGlycineBiological TransportAmino Acids, DiaminoGlutamineOpen Reading FramesGenesValineProtein BiosynthesisExcitatory Amino AcidsMethionineArginineAspartic AcidGene LibrarySwineSaccharomyces cerevisiaeSequence DeletionSequence AnalysisPolymerase Chain ReactionProlinePhenylalaninePoint MutationDietary ProteinsMutagenesisAmino Acid Transport System AAmino Acids, NeutralCysteineTryptophanTransfectionTranscription, GeneticMembrane ProteinsGasolineTemperatureHydrolysis