UrineAmino AcidsSequence Homology, Amino AcidAmino Acid SubstitutionUrinalysisCloning, MolecularAmino Acids, EssentialAmino Acid Transport SystemsChromatography, High Pressure LiquidUrine Specimen CollectionSequence AlignmentAmino Acid MotifsBase SequenceEscherichia coliMutationMolecular Sequence DataBinding SitesSubstance Abuse DetectionKineticsPeptide FragmentsAmino Acids, AromaticAmino Acids, SulfurMutagenesis, Site-DirectedDNA, ComplementarySequence Homology, Nucleic AcidBacteriuriaRecombinant ProteinsLeucineProtein ConformationModels, MolecularStructure-Activity RelationshipKidneyMolecular WeightPeptidesDNAProtein BindingProtein Structure, TertiarySubstrate SpecificityAmino Acid SequenceBacterial ProteinsCell LineCreatinineRestriction MappingMass SpectrometryProteinsElectrophoresis, Polyacrylamide GelPhylogenySequence Analysis, DNAAlanineRNA, MessengerSpecies SpecificityRecombinant Fusion ProteinsPolymerase Chain ReactionGenes, BacterialSpecimen HandlingLysineNitrogenDiuresisMaple Syrup Urine DiseasePlasmidsTime FactorsIsoleucineAmino Acid Transport Systems, BasicProtein Structure, SecondaryCattleDNA PrimersUrinary Tract InfectionsCarrier ProteinsAmino Acids, BasicConserved SequenceGlycineKidney Concentrating AbilityBiological TransportBiological MarkersAmino Acid Transport Systems, NeutralAmino Acids, DiaminoTrypsinCodonGlucuronatesUreaGlutamineArginineReagent StripsMethionineLiverValineCyanogen BromideExcitatory Amino AcidsAmino Acyl-tRNA SynthetasesTissue DistributionAmino SugarsProtein BiosynthesisGenesProlineOpen Reading FramesDNA, BacterialAspartic AcidHydrolysisChromatography, LiquidSequence Deletion