Amino Acids, NeutralAmino Acid Transport Systems, NeutralAmino AcidsAmino Acid Transport SystemsAmino Acid Transport System ASCLarge Neutral Amino Acid-Transporter 1Amino Acid Transport System AAminoisobutyric AcidsBiological TransportHartnup DiseaseLeucineAmino Acid Transport Systems, BasicAlaninePhenylalanineSequence Homology, Amino AcidAmino Acid SequenceKineticsAntigens, CD98 Heavy ChainAmino Acids, CyclicSodiumCarrier ProteinsTryptophanAmino Acids, DiaminoBiological Transport, ActiveAntigens, CD98 Light ChainsMembrane Transport ProteinsAntigens, CD98Cloning, MolecularATP-Binding Cassette TransportersMolecular Sequence Databeta-AlanineAmino Acid SubstitutionAmino Acids, EssentialAmino Acid Transport System y+ProlineBlood-Brain BarrierGlycineXenopus laevisHydrogen-Ion ConcentrationMutationBase SequenceSymportersAmino Acids, Branched-ChainGlutamineValineSubstrate SpecificityOocytesIsoleucineAmino Acid Transport System X-AGOrganic Anion TransportersCystineDNA, ComplementaryArginineAspartameAmino Acid Transport System LMutagenesis, Site-DirectedNorleucineCell LineSequence AlignmentGlutamate Plasma Membrane Transport ProteinsRNA, MessengerSerineCell MembraneMethionineBinding SitesStructure-Activity RelationshipBrainLysineAmino Acid Transport System y+LRecombinant ProteinsRationalization4-ChloromercuribenzenesulfonateDietary ProteinsDihydroxyphenylalanineProtein ConformationMembrane ProteinsModels, MolecularRNA, ComplementaryThreonineDipeptidesProtein BindingMicrovilliGlutamic AcidXenopusKidneyAspartic AcidProtein Structure, TertiaryCysteineStereoisomerismGlucose Transporter Type 1Escherichia coliGlutamatesMonosaccharide Transport ProteinsCarbon RadioisotopesRabbitsTyrosineCystinuriaCells, CulturedTissue DistributionDNA