Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinExonsMicrosatellite RepeatsIron-Binding ProteinsAllelesGenomic InstabilityMutationRepetitive Sequences, Nucleic AcidBase SequenceTandem Repeat SequencesMolecular Sequence DataSpinocerebellar AtaxiasMachado-Joseph DiseaseHeredodegenerative Disorders, Nervous SystemDNAPolymorphism, GeneticMinisatellite RepeatsNerve Tissue ProteinsDinucleotide RepeatsPolymerase Chain ReactionPedigreeGenetic MarkersFlap EndonucleasesAnticipation, GeneticFrontotemporal DementiaDNA, SatelliteGenetic VariationNucleic Acid ConformationChromosomal InstabilityInverted Repeat SequencesSequence Analysis, DNAChromosome FragilityAge of OnsetCerebellar AtaxiaJoint InstabilityGenotypeModels, GeneticIntranuclear Inclusion BodiesGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealDNA PrimersRNA-Binding ProteinsPhenotypeNuclear ProteinsDNA RepairChromosome MappingHeterozygoteGene FrequencyHaplotypesAmyotrophic Lateral SclerosisGenome, HumanNeurodegenerative DiseasesGenetics, PopulationProteinsMutS Homolog 2 ProteinPeptidesAmino Acid SequenceGenetic LinkageMicrosatellite InstabilityTranscription, GeneticEvolution, MolecularDNA ReplicationDNA Mutational AnalysisDNA-Binding ProteinsMice, TransgenicRNA, MessengerReceptors, AndrogenRecombination, GeneticGenes, DominantDNA, PlantSaccharomyces cerevisiaeIntronsExpressed Sequence TagsRepetitive Sequences, Amino AcidSequence DeletionPhylogenyChromosomes, Human, XMyoclonic Epilepsies, ProgressiveTandem Mass SpectrometryCell LineNucleic Acid HeteroduplexesGenetic LociDisease Models, AnimalSaccharomyces cerevisiae ProteinsGenetic TestingX ChromosomePromoter Regions, GeneticSpecies SpecificityRNA