Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionFragile X SyndromeSpinocerebellar DegenerationsMyotonic DystrophyFragile X Mental Retardation ProteinHuntington DiseaseIron-Binding ProteinsAllelesMutationRepetitive Sequences, Nucleic AcidBase SequencePromoter Regions, GeneticSpinocerebellar AtaxiasMachado-Joseph DiseaseMolecular Sequence DataHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsDNAGenomic InstabilityFrontotemporal DementiaFlap EndonucleasesMicrosatellite RepeatsAnticipation, GeneticNucleic Acid ConformationInverted Repeat SequencesMinisatellite RepeatsTandem Repeat SequencesPedigreeRNA-Binding ProteinsCerebellar AtaxiaIntranuclear Inclusion BodiesPolymerase Chain ReactionAge of OnsetNuclear ProteinsChromosome FragilityMuscular Dystrophy, OculopharyngealGenetic Diseases, InbornDNA-Binding ProteinsTranscription, GeneticPolymorphism, GeneticAmyotrophic Lateral SclerosisPhenotypeSequence Analysis, DNANeurodegenerative DiseasesRNA, MessengerModels, GeneticProteinsDNA PrimersPeptidesDNA RepairCell LineReceptors, AndrogenGenotypeAmino Acid SequenceExonsMice, TransgenicGene Expression RegulationAtaxiaHeterozygoteSaccharomyces cerevisiaeDNA ReplicationGenes, DominantGenome, HumanSequence DeletionGenetic MarkersMyoclonic Epilepsies, ProgressiveDisease Models, AnimalDNA Mutational AnalysisTranscription FactorsMutS Homolog 2 ProteinGene FrequencyRepetitive Sequences, Amino AcidNucleic Acid HeteroduplexesSaccharomyces cerevisiae ProteinsBinding SitesChromosomes, Human, XGene ExpressionOligodeoxyribonucleotidesGenetic VariationChromosome MappingRNAHaplotypes