Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinIron-Binding ProteinsAllelesMutationRepetitive Sequences, Nucleic AcidGene ExpressionBase SequenceSpinocerebellar AtaxiasGene Expression ProfilingMachado-Joseph DiseaseGene Expression RegulationMolecular Sequence DataHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsDNAGenomic InstabilityFrontotemporal DementiaFlap EndonucleasesMicrosatellite RepeatsAnticipation, GeneticNucleic Acid ConformationInverted Repeat SequencesMinisatellite RepeatsTandem Repeat SequencesPedigreePolymerase Chain ReactionRNA, MessengerCerebellar AtaxiaAge of OnsetIntranuclear Inclusion BodiesChromosome FragilityRNA-Binding ProteinsMuscular Dystrophy, OculopharyngealTranscription, GeneticGenetic Diseases, InbornNuclear ProteinsPhenotypePolymorphism, GeneticAmyotrophic Lateral SclerosisNeurodegenerative DiseasesProteinsModels, GeneticSequence Analysis, DNADNA-Binding ProteinsMice, TransgenicPeptidesOligonucleotide Array Sequence AnalysisDNA PrimersPromoter Regions, GeneticTranscription FactorsDNA RepairReceptors, AndrogenCell LineGenome, HumanGenotypeAmino Acid SequenceSaccharomyces cerevisiaeRNADNA ReplicationGenes, DominantDisease Models, AnimalGenetic MarkersExonsMyoclonic Epilepsies, ProgressiveHeterozygoteMutS Homolog 2 ProteinRepetitive Sequences, Amino AcidGene Expression Regulation, DevelopmentalNucleic Acid HeteroduplexesGenetic VariationSaccharomyces cerevisiae ProteinsReverse Transcriptase Polymerase Chain ReactionCells, CulturedGene FrequencyBrain