Sequence Homology, Amino AcidAmino Acid SequenceMolecular Sequence DataAmino AcidsCloning, MolecularBase SequenceSequence AlignmentOpen Reading FramesAmino Acids, AromaticDNA, ComplementarySequence Analysis, DNAHydrocarbons, AromaticPhylogenyEscherichia coliBacterial ProteinsAmino Acid SubstitutionAmino Acids, EssentialAmino Acid Transport SystemsBinding SitesAmino Acid MotifsMutationModels, MolecularKineticsMutagenesis, Site-DirectedProtein ConformationStructure-Activity RelationshipPolycyclic CompoundsSubstrate SpecificityRecombinant ProteinsAmino Acids, Branched-ChainPhenylalanineSequence Homology, Nucleic AcidPeptide FragmentsProtein Structure, TertiaryLeucineProtein BindingAmino Acids, SulfurDNAPeptidesMolecular WeightTryptophanProtein Structure, SecondaryGenes, BacterialRestriction MappingChromatography, High Pressure LiquidCell LineAlanineProteinsRecombinant Fusion ProteinsElectrophoresis, Polyacrylamide GelConserved SequenceRNA, MessengerSpecies SpecificityLysineDNA PrimersIsoleucineBiodegradation, EnvironmentalAmino Acid Transport Systems, BasicMolecular StructureCarrier ProteinsMagnetic Resonance SpectroscopyPlasmidsPyrenesCattleAmino Acids, BasicBiological TransportGlycineCodonCatalysisTyrosineTrypsinMutagenesisArginineGenesGlutamineCyanogen BromideValineSaccharomyces cerevisiaePolymerase Chain ReactionNitrogenDNA, BacterialMethioninePoint MutationAspartic AcidStereoisomerismAmino Acids, DiaminoAminesSequence AnalysisProtein BiosynthesisProlineGene LibrarySequence DeletionCysteineHydrocarbonsExcitatory Amino AcidsTranscription, GeneticBenzo(a)pyreneMembrane ProteinsTransfectionCrystallography, X-Ray