Adenine PhosphoribosyltransferasePentosyltransferasesHypoxanthine Phosphoribosyltransferase2-AminopurineAzaserineAdenineCricetinaeCricetulusCytidine MonophosphateBase SequenceOvaryChromosomes, Human, 16-18CHO CellsGenesMutationChromosome DeletionCell LineKidney Calculi7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxideBlotting, SouthernRecombination, GeneticHeterozygoteMutagenesisMolecular Sequence DataDNA Restriction EnzymesRestriction MappingLeishmania donovaniAllelesPoint MutationGene TargetingDNA Repair EnzymesDNA RepairNucleic Acid HybridizationGene DeletionDNAClone CellsDrug ResistanceHybrid CellsDNA PrimersSequence DeletionHomozygoteIsoelectric Point