CystinuriaAmino Acids, DiaminoAmino Acid Transport Systems, BasicCystineAmino AcidsAmino Acid Transport SystemsLysineArginineAmino Acid SequenceBiological TransportMolecular Sequence DataSequence Homology, Amino AcidAmino Acid SubstitutionCloning, MolecularAmino Acids, EssentialSequence AlignmentBase SequenceMutationAmino Acid MotifsEscherichia coliBinding SitesKineticsMutagenesis, Site-DirectedNeutral RedDNA, ComplementaryAmino Acids, AromaticSequence Homology, Nucleic AcidProtein ConformationPeptide FragmentsModels, MolecularRecombinant ProteinsLeucineAmino Acids, Branched-ChainAmino Acids, SulfurStructure-Activity RelationshipSubstrate SpecificityMolecular WeightProtein Structure, TertiaryDNAAmino Acids, NeutralProtein BindingPeptidesNeutral CeramidaseBacterial ProteinsCell LinePhylogenyRestriction MappingAlanineHydrogen-Ion Concentration