Amino AcidsAmino Acid SubstitutionMolecular Sequence DataAmino Acid SequenceCodonMutationBase SequenceSequence Homology, Amino AcidCloning, MolecularAmino Acids, EssentialAmino Acid Transport SystemsSequence AlignmentAmino Acid MotifsEscherichia coliBinding SitesMutagenesis, Site-DirectedDNA, ComplementaryAmino Acids, AromaticSequence Homology, Nucleic AcidAmino Acids, Branched-ChainPeptide FragmentsAmino Acids, SulfurKineticsRecombinant ProteinsLeucineProtein ConformationModels, MolecularStructure-Activity RelationshipProtein Structure, TertiarySubstrate SpecificityDNAMolecular WeightPeptidesProtein BindingBacterial ProteinsRestriction MappingCell LinePhylogenyAlanineRecombinant Fusion ProteinsSequence Analysis, DNAGenes, BacterialProteinsElectrophoresis, Polyacrylamide GelRNA, MessengerAmino Acid Transport Systems, BasicProtein Structure, SecondaryPlasmidsConserved SequenceIsoleucineAmino Acids, BasicLysineSpecies SpecificityChromatography, High Pressure LiquidDNA PrimersCarrier ProteinsCyanogen BromideTrypsinGlycineCattleBiological TransportAmino Acids, DiaminoGlutamineOpen Reading FramesGenesValineProtein BiosynthesisExcitatory Amino AcidsMethionineArginineAspartic AcidGene LibrarySaccharomyces cerevisiaeSequence DeletionSequence AnalysisPolymerase Chain ReactionNitrogenProlinePhenylalaninePoint MutationMutagenesisAmino Acid Transport System AAmino Acids, NeutralCysteineTryptophanTransfectionTranscription, GeneticMembrane ProteinsDNA, BacterialBlotting, NorthernMacromolecular SubstancesEvolution, MolecularSequence Analysis, ProteinViral ProteinsGene ExpressionPlant ProteinsThreonineReceptors, Amino AcidRabbitsEpitopes