Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsFragile X SyndromeMyotonic DystrophyHuntington DiseaseFragile X Mental Retardation ProteinIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidMutationMachado-Joseph DiseaseBase SequenceSpinocerebellar AtaxiasHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsGenomic InstabilityMolecular Sequence DataMicrosatellite RepeatsNucleic Acid ConformationDNAFlap EndonucleasesAnticipation, GeneticInverted Repeat SequencesMinisatellite RepeatsPedigreeFrontotemporal DementiaTandem Repeat SequencesCerebellar AtaxiaAge of OnsetChromosome FragilityMuscular Dystrophy, OculopharyngealIntranuclear Inclusion BodiesGenetic Diseases, InbornRNA-Binding ProteinsPolymerase Chain ReactionPolymorphism, GeneticNeurodegenerative DiseasesNuclear ProteinsPeptidesDNA RepairPhenotypeAmyotrophic Lateral SclerosisReceptors, AndrogenSequence Analysis, DNAModels, GeneticProteinsMice, TransgenicDNA PrimersGenotypeNucleic Acid HeteroduplexesTranscription, GeneticDNA ReplicationGenome, HumanGenes, DominantGenetic MarkersSaccharomyces cerevisiaeHeterozygoteMutS Homolog 2 ProteinExonsRNA, MessengerDNA-Binding ProteinsDinucleotide RepeatsGene FrequencyAmino Acid SequenceGenetic VariationChromosomes, Human, XDisease Models, AnimalOligodeoxyribonucleotidesMyoclonic Epilepsies, ProgressiveAtaxiaRNASaccharomyces cerevisiae ProteinsChromosome Fragile SitesDNA, SatelliteRepetitive Sequences, Amino Acid