Dietary SupplementsAmino AcidsSequence Homology, Amino AcidAmino Acid SequenceAmino Acid SubstitutionCloning, MolecularAmino Acids, EssentialAmino Acid Transport SystemsSequence AlignmentVitaminsBase SequenceAmino Acid MotifsEscherichia coliMutationBinding SitesAmino Acids, Branched-ChainMutagenesis, Site-DirectedMolecular Sequence DataDNA, ComplementaryAmino Acids, AromaticAmino Acids, SulfurSequence Homology, Nucleic AcidKineticsLeucinePeptide FragmentsRecombinant ProteinsFood, FortifiedProtein ConformationModels, MolecularCattleStructure-Activity RelationshipDietary ProteinsProtein Structure, TertiaryMineralsDNAPeptidesMolecular WeightSubstrate SpecificityProtein BindingBacterial ProteinsRestriction MappingCell LineAnimal FeedPhylogenyDietProteinsSequence Analysis, DNANitrogenAlanineChromatography, High Pressure LiquidGenes, BacterialRecombinant Fusion ProteinsRNA, MessengerElectrophoresis, Polyacrylamide GelNutritional RequirementsPlasmidsLysineAmino Acid Transport Systems, BasicSpecies SpecificityProtein Structure, SecondaryConserved SequenceIsoleucineAmino Acids, BasicMethionineCarrier ProteinsDNA PrimersGlutamineCodonGlycineBiological TransportTrypsinArginineCyanogen BromideAmino Acids, DiaminoOpen Reading FramesPolymerase Chain ReactionGenesProtein BiosynthesisSaccharomyces cerevisiaeValineFolic AcidDigestionPhenylalanineExcitatory Amino AcidsAspartic AcidGene LibraryProlinePlant PreparationsSequence DeletionSequence AnalysisCysteineMicronutrientsTryptophanPoint MutationLiverMutagenesisCulture MediaAmino Acid Transport System AAmino Acids, NeutralMembrane Proteins