Trinucleotide Repeat ExpansionTrinucleotide RepeatsFragile X SyndromeFragile X Mental Retardation ProteinFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyHuntington DiseaseIron-Binding ProteinsAllelesAtaxiaMutationTremorRepetitive Sequences, Nucleic AcidNerve Tissue ProteinsSpinocerebellar AtaxiasMachado-Joseph DiseasePrimary Ovarian InsufficiencyBase SequenceIntranuclear Inclusion BodiesRNA-Binding ProteinsHeterozygoteHeredodegenerative Disorders, Nervous SystemPedigreeMolecular Sequence DataDNAGenomic InstabilityChromosome FragilityFrontotemporal DementiaFlap EndonucleasesMicrosatellite RepeatsAnticipation, GeneticNucleic Acid ConformationMinisatellite RepeatsTandem Repeat SequencesAge of OnsetInverted Repeat SequencesPolymerase Chain ReactionCerebellar AtaxiaPhenotypeMuscular Dystrophy, OculopharyngealGenetic Diseases, InbornGenetic TestingHeterozygote DetectionPolymorphism, GeneticAmyotrophic Lateral SclerosisNeurodegenerative DiseasesGene Knock-In TechniquesNuclear ProteinsModels, GeneticDisease Models, AnimalRNA, MessengerMice, TransgenicGenotypeProteinsPeptidesX ChromosomeDNA RepairChromosomes, Human, XSequence Analysis, DNAMosaicismSex Chromosome AberrationsReceptors, AndrogenBrainGene FrequencyDNA Mutational AnalysisGenetic MarkersTranscription, GeneticDNA PrimersDNA ReplicationGenes, DominantMyoclonic Epilepsies, ProgressiveGenome, HumanExonsChromosome Fragile SitesMutS Homolog 2 ProteinAmino Acid SequenceDNA-Binding ProteinsRepetitive Sequences, Amino AcidNucleic Acid HeteroduplexesSaccharomyces cerevisiae