Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesMutationRepetitive Sequences, Nucleic AcidBase SequenceTandem Repeat SequencesMolecular Sequence DataPoint MutationSpinocerebellar AtaxiasMachado-Joseph DiseasePedigreeHeredodegenerative Disorders, Nervous SystemDNAPolymerase Chain ReactionPolymorphism, GeneticPropensity ScoreNerve Tissue ProteinsMinisatellite RepeatsGenomic InstabilityDinucleotide RepeatsGenetic MarkersMutation, MissenseGenetic VariationFrontotemporal DementiaSequence Analysis, DNAFlap EndonucleasesNucleic Acid ConformationAnticipation, GeneticGenotypeAge of OnsetInverted Repeat SequencesDNA, SatelliteHeterozygoteCerebellar AtaxiaModels, GeneticGenetic Diseases, InbornDNA PrimersPhenotypeIntranuclear Inclusion BodiesChromosome MappingChromosome FragilityRNA-Binding ProteinsMuscular Dystrophy, OculopharyngealExonsGene FrequencyAmino Acid SequenceNuclear ProteinsProteinsAmyotrophic Lateral SclerosisGenetic LinkageFrameshift MutationDNA RepairPeptidesGenetics, PopulationNeurodegenerative DiseasesHaplotypesGenes, DominantDNA Mutational AnalysisGenome, HumanEvolution, MolecularDNA-Binding ProteinsMice, TransgenicTranscription, GeneticSaccharomyces cerevisiaeMutS Homolog 2 ProteinDNA ReplicationReceptors, AndrogenRecombination, GeneticSequence DeletionGenetic TestingRNA, MessengerCell LineDNA, PlantRepetitive Sequences, Amino AcidPhylogenyGerm-Line MutationDisease Models, AnimalSaccharomyces cerevisiae ProteinsChromosomes, Human, XExpressed Sequence TagsMyoclonic Epilepsies, ProgressiveNucleic Acid HeteroduplexesFounder EffectTandem Mass SpectrometryGenetic LociX ChromosomeTranscription FactorsSpecies SpecificityMutation RatePromoter Regions, Genetic