Hypoxanthine PhosphoribosyltransferasePoint MutationMutation, MissenseMutationFrameshift MutationGerm-Line MutationLesch-Nyhan SyndromePedigreeExonsBase SequenceMutation RatePolymerase Chain ReactionDNA Mutational AnalysisHeterozygoteMolecular Sequence DataMutagenesisAllelesAmino Acid SubstitutionPolymorphism, Single-Stranded ConformationalAmino Acid SequenceMutagenesis, Site-DirectedSequence Analysis, DNAMutagensGenotypeSequence DeletionCodon, NonsenseHomozygoteX ChromosomeCell LineThioguanineDNA PrimersEthylnitrosoureaGenes, RecessiveDNAChromosome MappingPhenotypeGenes, DominantGenetic TestingGene DeletionProtein Structure, TertiaryEscherichia coliSuppression, GeneticMutagenicity TestsDNA-Binding ProteinsModels, MolecularCloning, MolecularGenetic LinkageCodonGenesBinding SitesCricetinaeSequence Homology, Amino AcidTranscription FactorsGenetic Complementation TestPlasmidsEthyl MethanesulfonateFounder EffectGenes, p53TransfectionSyndromeRNA, MessengerModels, GeneticDosage Compensation, GeneticTranscription, GeneticProtein BindingSequence AlignmentMutant ProteinsGenetic Predisposition to DiseaseSaccharomyces cerevisiaeMembrane ProteinsIntronsRecombination, GeneticConsanguinityPromoter Regions, GeneticBacterial ProteinsNuclear ProteinsPolymorphism, Genetic7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxideCricetulusGenetic VariationMicrosatellite RepeatsDNA RepairGenes, LethalReverse Transcriptase Polymerase Chain ReactionHeterozygote DetectionExomeDNA, MitochondrialProto-Oncogene Proteins B-rafGenes, BRCA1Mutagenesis, InsertionalFamily HealthKineticsCarrier ProteinsGene FrequencyRestriction MappingDNA, NeoplasmRNA SplicingPolymorphism, Restriction Fragment LengthGenes, BacterialCells, Cultured