Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinIron-Binding ProteinsGenes, DominantAllelesMutationPedigreeRepetitive Sequences, Nucleic AcidSpinocerebellar AtaxiasMachado-Joseph DiseaseBase SequencePolycystic Kidney, Autosomal DominantHeredodegenerative Disorders, Nervous SystemMolecular Sequence DataNerve Tissue ProteinsMicrosatellite RepeatsAnticipation, GeneticGenomic InstabilityDNACerebellar AtaxiaFrontotemporal DementiaAge of OnsetFlap EndonucleasesNucleic Acid ConformationTandem Repeat SequencesInverted Repeat SequencesMinisatellite RepeatsPhenotypePolymerase Chain ReactionGenetic Diseases, InbornIntranuclear Inclusion BodiesMuscular Dystrophy, OculopharyngealGenetic LinkageChromosome FragilityRNA-Binding ProteinsPolymorphism, GeneticDNA Mutational AnalysisAmyotrophic Lateral SclerosisNuclear ProteinsNeurodegenerative DiseasesProteinsHeterozygoteSequence Analysis, DNAGenetic MarkersChromosome MappingGenotypeExonsPeptidesHaplotypesMice, TransgenicModels, GeneticDNA RepairDNA PrimersReceptors, AndrogenAmino Acid SequenceTRPP Cation ChannelsDisease Models, AnimalLod ScoreGenome, HumanTranscription, GeneticMyoclonic Epilepsies, ProgressiveDNA-Binding ProteinsRNA, MessengerMutS Homolog 2 ProteinGenetic TestingDNA ReplicationRetinitis PigmentosaGene FrequencySaccharomyces cerevisiaeGenetic VariationRepetitive Sequences, Amino AcidCell LineNucleic Acid HeteroduplexesAtaxiaSequence DeletionDNA, SatellitePoint Mutation