Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinIron-Binding ProteinsAllelesMutationMolecular Sequence DataBase SequenceRepetitive Sequences, Nucleic AcidSpinocerebellar AtaxiasMachado-Joseph DiseaseHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsTranscription Factor CHOPDNAGenomic InstabilityAmino Acid SequenceFrontotemporal DementiaFlap EndonucleasesMicrosatellite RepeatsAnticipation, GeneticNucleic Acid ConformationInverted Repeat SequencesPedigreeProteinsTandem Repeat SequencesMinisatellite RepeatsPolymerase Chain ReactionAge of OnsetCerebellar AtaxiaIntranuclear Inclusion BodiesRNA-Binding ProteinsChromosome FragilityMuscular Dystrophy, OculopharyngealGenetic Diseases, InbornNuclear ProteinsPolymorphism, GeneticSequence Analysis, DNAAmyotrophic Lateral SclerosisPhenotypePeptidesNeurodegenerative DiseasesTranscription, GeneticSequence Homology, Amino AcidDNA PrimersRNA, MessengerSequence AlignmentModels, GeneticMice, TransgenicDNA RepairDNA-Binding ProteinsReceptors, AndrogenSaccharomyces cerevisiaeGenotypeExonsCell LineCloning, MolecularGenetic VariationGenes, DominantDNA ReplicationIntracranial AneurysmTranscription FactorsDisease Models, AnimalMyoclonic Epilepsies, ProgressivePromoter Regions, GeneticSaccharomyces cerevisiae ProteinsHeterozygoteGenetic MarkersRepetitive Sequences, Amino AcidMutS Homolog 2 ProteinNucleic Acid HeteroduplexesGene ExpressionModels, MolecularRNAGene FrequencyEvolution, MolecularPhylogeny