Amino Acids, EssentialAmino AcidsSequence Homology, Amino AcidAmino Acid SequenceLeucineDietary ProteinsAmino Acid Transport SystemsAmino Acid SubstitutionNitrogenPhenylalanineIsoleucineKeto AcidsBuchneraCloning, MolecularAmino Acids, Branched-ChainMethionineNutritional RequirementsTryptophanLysineMolecular Sequence DataAmino Acids, AromaticSequence AlignmentBase SequenceGlutamineHistidinolMutagenesis, Site-DirectedEscherichia coliMutationThreonineBinding SitesKineticsValineAphidsCaseinsArginineBromusAmino Acid MotifsRecombinant ProteinsModels, MolecularSymbiosisLarge Neutral Amino Acid-Transporter 1Protein ConformationSubstrate SpecificityDietProteinsProtein BiosynthesisStructure-Activity RelationshipProtein Structure, TertiaryMuscle ProteinsAlanineUreaPhylogenyBacterial ProteinsNutritive ValueIndoleamine-Pyrrole 2,3,-DioxygenaseDNA, ComplementaryCell LineSequence Homology, Nucleic AcidProtein BindingPeptide FragmentsZeinCattleKynurenineGlycineRNA, MessengerSwineAmino Acids, SulfurParenteral NutritionHistidineSequence Analysis, DNAConserved SequenceBiological TransportGenes, BacterialCryptophytaCystineAspartic AcidCulture MediaMolecular WeightChromatography, High Pressure LiquidProlineDNADiet, Protein-RestrictedPeptidesLiverCarbon IsotopesDNA PrimersCysteineBlood Urea NitrogenRestriction MappingAnimal Nutritional Physiological PhenomenaBody WeightDietary SupplementsTOR Serine-Threonine KinasesVegetable ProteinsMilk ProteinsMuscle, SkeletalElectrophoresis, Polyacrylamide GelSaccharopine DehydrogenasesRecombinant Fusion ProteinsEvolution, Molecular