Amino AcidsSequence Homology, Amino AcidAmino Acid SequenceNucleic AcidsCellophaneAmino Acid SubstitutionCloning, MolecularEscherichia coliSulfuric AcidsBase SequenceMolecular Sequence DataModels, MolecularAmino Acids, EssentialKineticsAmino Acid Transport SystemsDNA, CircularSequence AlignmentMolecular WeightDNA, BacterialBinding SitesAmino Acid MotifsMutationCentrifugation, Density GradientNucleic Acid DenaturationTritiumProtein ConformationMutagenesis, Site-DirectedPeptide FragmentsDNA, ComplementaryRecombinant ProteinsProtein BindingSequence Homology, Nucleic AcidAmino Acids, AromaticStructure-Activity RelationshipProtein Structure, TertiaryNucleic Acid ConformationMagnetic Resonance SpectroscopyHydrogen-Ion ConcentrationAmino Acids, Branched-ChainLeucinePeptidesAmino Acids, SulfurDNACell LineSubstrate SpecificityBacterial ProteinsMicroscopy, ElectronRecombinant Fusion ProteinsRestriction MappingProteinsRNA, MessengerElectrophoresis, Polyacrylamide GelPhylogenyFatty AcidsSequence Analysis, DNAProtein Structure, SecondaryPlasmidsAlanineGenes, BacterialThymidineCarrier ProteinsDNA, ViralCell Adhesion MoleculesConserved SequenceSpecies SpecificityDNA PrimersChromatography, High Pressure LiquidLysineAmino Acid Transport Systems, BasicCattleIsoleucineAmino Acids, BasicBiological TransportTrypsinMembrane ProteinsCodonCyanogen BromideTransfectionGlycineGenesProtein BiosynthesisPolymerase Chain ReactionOpen Reading FramesSaccharomyces cerevisiaeGlutamineGene LibraryArginineTranscription, GeneticAmino Acids, DiaminoSequence DeletionMacromolecular SubstancesValineMethionineMutagenesisAspartic AcidPoint MutationSequence AnalysisCysteineProlineExcitatory Amino Acids