Amino Acids, NeutralAlanine TransaminaseAmino AcidsAmino Acid Transport Systems, NeutralAspartate AminotransferasesAmino Acid Transport SystemsAlanineAmino Acid Transport System ASCLarge Neutral Amino Acid-Transporter 1Amino Acid Transport System ASequence Homology, Amino AcidAminoisobutyric AcidsAmino Acid SequenceHartnup DiseaseLeucineBiological TransportAmino Acid Transport Systems, BasicPhenylalanineAmino Acid SubstitutionCloning, MolecularKineticsAmino Acids, CyclicAmino Acids, EssentialTryptophanAntigens, CD98 Heavy ChainAmino Acids, DiaminoMolecular Sequence DataSodiumAntigens, CD98 Light ChainsBiological Transport, ActiveAntigens, CD98Carrier ProteinsMutationBase Sequencebeta-AlanineAmino Acids, Branched-ChainMutagenesis, Site-DirectedProlineGlycineSequence AlignmentHydrogen-Ion ConcentrationSubstrate SpecificityIsoleucineGlutamineBinding SitesValineDNA, ComplementaryStructure-Activity RelationshipArginineRecombinant ProteinsAmino Acid Transport System y+Escherichia coliBlood-Brain BarrierSerineAmino Acid MotifsCell LineModels, MolecularProtein ConformationLysineCystineXenopus laevisMethionineProtein BindingProtein Structure, TertiaryNorleucineAspartameOocytesDNARNA, MessengerThreonineDietary ProteinsNeutral RedAmino Acid Transport System LAmino Acids, AromaticPeptide FragmentsSequence Homology, Nucleic AcidAspartic AcidCattleCysteineCell MembraneAmino Acids, SulfurPeptidesAlanine RacemaseMolecular WeightBrainRabbitsStereoisomerismTyrosineAmino Acid Transport System y+LBacterial ProteinsDipeptidesDNA PrimersRationalizationDihydroxyphenylalanineMembrane ProteinsNeutral CeramidaseGlutamatesPhylogenyHistidineMembrane Transport Proteins