Amino Acids, NeutralLarge Neutral Amino Acid-Transporter 1Amino AcidsAmino Acid Transport SystemsAmino Acid Transport Systems, NeutralAmino Acids, CyclicAspartameTryptophanPhenylalanineRationalizationLeucineAmino Acid Transport System ASCAntigens, CD98Blood-Brain BarrierBiological TransportAmino Acid Transport System AAmino Acids, Branched-ChainAminoisobutyric AcidsPhenylketonuriasHartnup DiseaseSequence Homology, Amino AcidBrainAmino Acid Transport Systems, BasicAmino Acid SequenceAlanineDietary ProteinsTyrosineKineticsAntigens, CD98 Heavy ChainCloning, MolecularAmino Acids, DiaminoSerotoninAmino Acid SubstitutionSodiumAmino Acids, EssentialAntigens, CD98 Light ChainsAmino Acid Transport System LBiological Transport, ActiveMolecular Sequence Databeta-AlanineCarrier ProteinsProlineGlycineBase SequenceHydrogen-Ion ConcentrationIsoleucineMutationValineAmino Acid Transport System y+GlutamineSubstrate SpecificitySequence AlignmentDNA, ComplementaryMutagenesis, Site-DirectedArginineCystineXenopus laevisBinding SitesNorleucineMethionineStructure-Activity RelationshipSerineLysineOocytesCell LineRecombinant ProteinsProtein ConformationAmino Acid MotifsModels, MolecularEscherichia coliRNA, MessengerThreonineAmino Acid Transport System y+LDNAProtein BindingProtein Structure, TertiaryCattleNeutral RedCell MembraneStereoisomerismRabbitsCysteine4-ChloromercuribenzenesulfonateAspartic AcidAmino Acids, AromaticSequence Homology, Nucleic AcidDipeptidesPeptide FragmentsRNA, ComplementaryMembrane Transport ProteinsGlutamatesAmino Acid Transport System X-AGMicrovilliAmino Acids, SulfurXenopusMembrane ProteinsGlutamate Plasma Membrane Transport ProteinsCarbon RadioisotopesCystinuriaMolecular Weight