Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidMutationSpinocerebellar AtaxiasTandem Repeat SequencesBase SequenceMachado-Joseph DiseaseHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsMolecular Sequence DataMinisatellite RepeatsGenomic InstabilityPolymorphism, GeneticDinucleotide RepeatsDNAGenetic MarkersPeptidesFrontotemporal DementiaFlap EndonucleasesPedigreeAnticipation, GeneticPolymerase Chain ReactionIntranuclear Inclusion BodiesNucleic Acid ConformationGenetic VariationInverted Repeat SequencesDNA, SatelliteAge of OnsetNeurodegenerative DiseasesCerebellar AtaxiaSequence Analysis, DNAChromosome FragilityGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealNuclear ProteinsGenotypeRNA-Binding ProteinsModels, GeneticAmyotrophic Lateral SclerosisDNA PrimersPhenotypeChromosome MappingGene FrequencyHaplotypesGenetics, PopulationHeterozygoteDNA RepairProteinsGenome, HumanGenetic LinkageReceptors, AndrogenRepetitive Sequences, Amino AcidMice, TransgenicAmino Acid SequenceEvolution, MolecularExonsTranscription, GeneticMutS Homolog 2 ProteinDNA, PlantDNA ReplicationGenes, DominantSaccharomyces cerevisiaeDisease Models, AnimalDNA-Binding ProteinsExpressed Sequence TagsMyoclonic Epilepsies, ProgressiveRecombination, GeneticTandem Mass SpectrometryChromosomes, Human, XPhylogenyNucleic Acid HeteroduplexesRNA, MessengerGenetic LociDNA Mutational AnalysisSaccharomyces cerevisiae ProteinsCell Line