Amino Acids, NeutralLarge Neutral Amino Acid-Transporter 1Amino AcidsAspartameAmino Acids, CyclicAmino Acid Transport SystemsTryptophanRationalizationDihydroxyphenylalaninePhenylalanineAmino Acid Transport Systems, NeutralLeucineBlood-Brain BarrierAntigens, CD98PhenylketonuriasBiological TransportAmino Acids, Branched-ChainAmino Acid Transport System ASCBrainAmino Acid Transport System ASequence Homology, Amino AcidAminoisobutyric AcidsDietary ProteinsNeuronsTyrosineSerotoninHartnup DiseaseAmino Acid SequenceAmino Acid Transport Systems, BasicAlanineCloning, MolecularAmino Acid Transport System LKineticsAmino Acid SubstitutionAmino Acids, EssentialAntigens, CD98 Heavy ChainAmino Acids, DiaminoSodiumMolecular Sequence DataAntigens, CD98 Light ChainsBiological Transport, ActiveCarrier ProteinsMutationBase Sequencebeta-AlanineNeurons, AfferentGlycineProlineSequence AlignmentHydrogen-Ion ConcentrationDNA, ComplementaryIsoleucineSubstrate SpecificityValineMutagenesis, Site-DirectedGlutamineBinding SitesMotor NeuronsAmino Acid Transport System y+ArginineRecombinant ProteinsCell LineStructure-Activity RelationshipXenopus laevisLysineCystineAmino Acid MotifsRNA, MessengerMethionineEscherichia coliProtein ConformationModels, MolecularSerineCells, CulturedOocytesNorleucineProtein BindingDNAProtein Structure, TertiaryNeutral RedPeptide FragmentsSequence Homology, Nucleic AcidGlutamic AcidAmino Acids, AromaticThreonineCell MembraneMembrane PotentialsCattleAspartic AcidAmino Acids, SulfurRabbitsTime FactorsPeptidesMolecular WeightMembrane ProteinsCysteineAmino Acid Transport System y+LStereoisomerismDNA PrimersDipeptides