Amino Acids, NeutralAmino AcidsAmino Acid Transport Systems, NeutralBlood-Brain BarrierAmino Acid Transport SystemsAmino Acid Transport System ASCLarge Neutral Amino Acid-Transporter 1Amino Acid Transport System ASequence Homology, Amino AcidAminoisobutyric AcidsHartnup DiseaseAmino Acid SequenceLeucineBiological TransportAmino Acid Transport Systems, BasicAlaninePhenylalanineCloning, MolecularBrainKineticsAmino Acid SubstitutionAmino Acids, CyclicAmino Acids, EssentialAntigens, CD98 Heavy ChainTryptophanAmino Acids, DiaminoMolecular Sequence DataSodiumAntigens, CD98 Light ChainsBiological Transport, ActiveAntigens, CD98Carrier ProteinsBase Sequencebeta-AlanineAmino Acids, Branched-ChainMutationBrain InjuriesProlineSequence AlignmentHydrogen-Ion ConcentrationGlycineDNA, ComplementarySubstrate SpecificityIsoleucineValineMutagenesis, Site-DirectedGlutamineBinding SitesBrain EdemaAmino Acid Transport System y+Brain ChemistryArginineBrain NeoplasmsRecombinant ProteinsStructure-Activity RelationshipCell LineXenopus laevisCystineAmino Acid MotifsMethionineEscherichia coliLysineProtein ConformationRNA, MessengerModels, MolecularSerineAspartameNorleucineOocytesDNAProtein BindingTime FactorsCells, CulturedProtein Structure, TertiaryNeutral RedAmino Acid Transport System LPeptide FragmentsDietary ProteinsSequence Homology, Nucleic AcidCattleAmino Acids, AromaticThreonineAspartic AcidTransendothelial and Transepithelial MigrationMolecular WeightAmino Acids, SulfurRabbitsCysteineCell MembraneOccludinPeptidesAmino Acid Transport System y+LStereoisomerismDihydroxyphenylalanineTyrosineMembrane ProteinsRationalizationDipeptidesDNA PrimersTissue Distribution