Amino AcidsAmino Acids, NeutralLarge Neutral Amino Acid-Transporter 1AspartameAmino Acid Transport SystemsAmino Acids, CyclicTryptophanRationalizationPhenylalanineDihydroxyphenylalanineAmino Acid Transport Systems, NeutralLeucineBlood-Brain BarrierAntigens, CD98Dietary SupplementsPhenylketonuriasAmino Acids, Branched-ChainBiological TransportFolic AcidSequence Homology, Amino AcidAmino Acid Transport System ASCBrainAmino Acid SequenceAmino Acid Transport System ADietary ProteinsAminoisobutyric AcidsNeural Tube DefectsTyrosineVitamin B ComplexSerotoninAmino Acid SubstitutionHartnup DiseaseCloning, MolecularAlanineAmino Acid Transport Systems, BasicAmino Acids, EssentialKineticsPreconception CareAmino Acid Transport System LAmino Acids, DiaminoMolecular Sequence DataAntigens, CD98 Heavy ChainBase SequenceMutationSequence AlignmentFood, FortifiedSodiumCarrier ProteinsBiological Transport, ActiveAntigens, CD98 Light ChainsMutagenesis, Site-DirectedDNA, ComplementaryBinding SitesSubstrate SpecificityProlineGlycineAmino Acid MotifsPregnancyIsoleucinebeta-AlanineEscherichia coliPrenatal CareHydrogen-Ion ConcentrationRecombinant ProteinsValineGlutamineStructure-Activity RelationshipProtein ConformationModels, MolecularArginineCell LineLysineAmino Acids, AromaticMethionineSequence Homology, Nucleic AcidDNAPeptide FragmentsVitamin B 12Protein BindingHomocysteineProtein Structure, TertiaryDietAmino Acids, SulfurRNA, MessengerCystineAmino Acid Transport System y+CattleVitaminsPrenatal Nutritional Physiological PhenomenaXenopus laevisSerineNutritional RequirementsMolecular WeightPeptidesOocytesBacterial ProteinsNorleucineThreonineFatty Acids, Omega-3Aspartic Acid