Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinPolymorphism, GeneticAllelesPromoter Regions, GeneticIron-Binding ProteinsPolymorphism, Single NucleotideGenotypeGene FrequencyMutationBase SequenceGenetic Predisposition to DiseaseRepetitive Sequences, Nucleic AcidHaplotypesMolecular Sequence DataPolymerase Chain ReactionSpinocerebellar AtaxiasDNAMachado-Joseph DiseaseCase-Control StudiesMicrosatellite RepeatsHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsAge of OnsetGenomic InstabilityFrontotemporal DementiaFlap EndonucleasesMinisatellite RepeatsAnticipation, GeneticNucleic Acid ConformationPhenotypeTandem Repeat SequencesSequence Analysis, DNAPedigreeInverted Repeat SequencesDNA PrimersTranscription, GeneticGenetic VariationGenetic Association StudiesCerebellar AtaxiaNuclear ProteinsIntranuclear Inclusion BodiesHeterozygoteChromosome FragilityGenetic MarkersMuscular Dystrophy, OculopharyngealDNA-Binding ProteinsGenetic Diseases, InbornRNA-Binding ProteinsLinkage DisequilibriumAsian Continental Ancestry GroupSerotonin Plasma Membrane Transport ProteinsRNA, MessengerExonsModels, GeneticDinucleotide RepeatsDNA Mutational AnalysisAmyotrophic Lateral SclerosisGene Expression RegulationNeurodegenerative DiseasesProteinsHomozygoteCell LineDNA RepairPeptidesAmino Acid SequenceReceptors, AndrogenGenome, HumanGenetic TestingTranscription FactorsRisk FactorsChromosome MappingGenetic LinkageMice, TransgenicGenes, DominantPolymorphism, Restriction Fragment LengthGene ExpressionSaccharomyces cerevisiaeBinding SitesSequence DeletionDNA ReplicationInterleukin-10ChinaMyoclonic Epilepsies, ProgressiveCohort StudiesMutS Homolog 2 ProteinRepetitive Sequences, Amino AcidNucleic Acid HeteroduplexesDisease Models, AnimalEuropean Continental Ancestry GroupSaccharomyces cerevisiae ProteinsOligodeoxyribonucleotidesRecombination, Genetic