Amino Acids, EssentialAmino AcidsDietary ProteinsLeucineNitrogenSequence Homology, Amino AcidBuchneraKeto AcidsPhenylalanineIsoleucineNutritional RequirementsAmino Acid SequenceAmino Acid Transport SystemsMethionineAmino Acids, Branched-ChainTryptophanLysineHistidinolAmino Acid SubstitutionAphidsGlutamineBromusThreonineCloning, MolecularMolecular Sequence DataCaseinsValineSymbiosisAmino Acids, AromaticArginineDietIndoleamine-Pyrrole 2,3,-DioxygenaseNutritive ValueBase SequenceMuscle ProteinsMutagenesis, Site-DirectedZeinSequence AlignmentKynurenineLarge Neutral Amino Acid-Transporter 1UreaCryptophytaEscherichia coliKineticsBinding SitesParenteral NutritionMutationProtein BiosynthesisDiet, Protein-RestrictedProteinsHistidineBlood Urea NitrogenSwineDietary SupplementsRecombinant ProteinsAnimal Nutritional Physiological PhenomenaSaccharopine DehydrogenasesBody WeightCystineAlanineTOR Serine-Threonine KinasesSubstrate SpecificityCulture MediaModels, MolecularMilk ProteinsVegetable ProteinsGlycinePhylogenyProtein Structure, TertiaryTrypanosomatinaMuscle, SkeletalLiverCattleNutritional Physiological PhenomenaStructure-Activity RelationshipBacterial ProteinsUremiaProtein ConformationCarbon IsotopesDigestionRNA, MessengerProtein DeficiencyCell LineAnimal FeedAmino Acid MotifsTryptophan OxygenaseAspartic AcidConserved SequenceBiological TransportProlineProtein BindingPhenylketonuriasCysteineSequence Analysis, DNAInsulinSoybeansBed RestFood, FortifiedGenes, BacterialFeeding Behavior