Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMutationMicrosatellite RepeatsIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidBase SequenceMolecular Sequence DataSpinocerebellar AtaxiasPoint MutationMachado-Joseph DiseaseTandem Repeat SequencesPedigreeDinucleotide RepeatsMinisatellite RepeatsHeredodegenerative Disorders, Nervous SystemDNAPolymerase Chain ReactionPolymorphism, GeneticNerve Tissue ProteinsGenomic InstabilityGenetic MarkersMutation, MissenseInverted Repeat SequencesSequence Analysis, DNAFrontotemporal DementiaGenetic VariationFlap EndonucleasesAnticipation, GeneticNucleic Acid ConformationGenotypeDNA, SatelliteAge of OnsetHeterozygoteCerebellar AtaxiaModels, GeneticDNA PrimersGenetic Diseases, InbornIntranuclear Inclusion BodiesChromosome MappingChromosome FragilityPhenotypeRNA-Binding ProteinsMuscular Dystrophy, OculopharyngealNuclear ProteinsExonsGene FrequencyAmino Acid SequenceAmyotrophic Lateral SclerosisFrameshift MutationGenetic LinkageDNA RepairGenetics, PopulationProteinsRepetitive Sequences, Amino AcidNeurodegenerative DiseasesHaplotypesDNA Mutational AnalysisGenome, HumanGenes, DominantPeptidesTranscription, GeneticDNA-Binding ProteinsEvolution, MolecularSaccharomyces cerevisiaeMice, TransgenicReceptors, AndrogenRecombination, GeneticDNA ReplicationSequence DeletionMutS Homolog 2 ProteinDNA, PlantGenetic TestingRNA, MessengerCell LineAnkyrin RepeatPhylogenyGerm-Line MutationChromosomes, Human, XMyoclonic Epilepsies, ProgressiveExpressed Sequence TagsSaccharomyces cerevisiae ProteinsDisease Models, AnimalNucleic Acid HeteroduplexesGenetic LociFounder EffectX ChromosomeTranscription FactorsPromoter Regions, Genetic