Amino AcidsAmino Acids, NeutralAmino Acid Transport SystemsAminoisobutyric AcidsAmino Acid Transport Systems, NeutralLeucineBiological TransportAmino Acid Transport System ASequence Homology, Amino AcidAmino Acid Transport System ASCLarge Neutral Amino Acid-Transporter 1Amino Acid SequenceAmino Acid Transport Systems, BasicAlanineKineticsPhenylalanineAmino Acid SubstitutionCloning, MolecularHartnup DiseaseBiological Transport, ActiveSodiumAmino Acids, EssentialProlineMolecular Sequence DataGlycineCarrier Proteinsbeta-AlanineMutationGlutamineAmino Acids, CyclicAmino Acids, DiaminoTryptophanBase SequenceAntigens, CD98 Heavy ChainMethionineAmino Acids, BasicSequence AlignmentHydrogen-Ion ConcentrationAmino Acids, Branched-ChainArginineAntigens, CD98 Light ChainsAntigens, CD98DNA, ComplementaryMutagenesis, Site-DirectedAspartic AcidBinding SitesSubstrate SpecificityEscherichia coliCarbon IsotopesAmino Acid MotifsIsoleucineRecombinant ProteinsCarbon RadioisotopesSerineCell LineCanavanineStructure-Activity RelationshipValineCell MembraneProtein ConformationModels, MolecularGlucoseNitrogenGlutamatesMicrovilliProtein BindingDNACycloleucineLysineRNA, MessengerCells, CulturedAmino Acids, AromaticSequence Homology, Nucleic AcidProtein BiosynthesisPeptide FragmentsProtein Structure, TertiaryLiverAmino Acid Transport System y+CystineAmino Acids, SulfurXenopus laevisBlood-Brain BarrierBacterial ProteinsSorbic AcidCulture MediaAminobutyratesCattleMolecular WeightOocytesPeptidesRats, Inbred StrainsMembrane Transport ProteinsTime FactorsInsulinDietary ProteinsSaccharomyces cerevisiaeNorleucineTritiumRabbitsThreonine