Trinucleotide Repeat ExpansionTrinucleotide RepeatsMicrosatellite RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidMutationBase SequenceMolecular Sequence DataSpinocerebellar AtaxiasMachado-Joseph DiseaseTandem Repeat SequencesHeredodegenerative Disorders, Nervous SystemDNAPolymorphism, GeneticDNA, SatelliteGenomic InstabilityNerve Tissue ProteinsDinucleotide RepeatsGenetic MarkersMinisatellite RepeatsFrontotemporal DementiaFlap EndonucleasesPolymerase Chain ReactionPedigreeAnticipation, GeneticNucleic Acid ConformationGenetic VariationInverted Repeat SequencesSequence Analysis, DNACerebellar AtaxiaAge of OnsetIntranuclear Inclusion BodiesChromosome FragilityGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealModels, GeneticRNA-Binding ProteinsGenotypeChromosome MappingDNA PrimersPhenotypeAmyotrophic Lateral SclerosisNuclear ProteinsGene FrequencyNeurodegenerative DiseasesHaplotypesHeterozygoteGenetics, PopulationGenetic LinkageGenome, HumanDNA RepairPeptidesProteinsAmino Acid SequenceEvolution, MolecularTranscription, GeneticDNA, PlantReceptors, AndrogenRepetitive Sequences, Amino AcidDNA ReplicationMice, TransgenicRecombination, GeneticExonsMutS Homolog 2 ProteinSaccharomyces cerevisiaeGenes, DominantDNA-Binding ProteinsPhylogenyRNA, MessengerMyoclonic Epilepsies, ProgressiveExpressed Sequence TagsChromosomes, Human, XSpecies SpecificityNucleic Acid HeteroduplexesDNA Mutational AnalysisGenetic LociX ChromosomeDisease Models, Animal