Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsAllelesIron-Binding ProteinsPolymorphism, GeneticGenetic LinkageMutationRepetitive Sequences, Nucleic AcidPolymorphism, Single NucleotideBase SequenceSpinocerebellar AtaxiasGenetic MarkersMolecular Sequence DataMachado-Joseph DiseasePolymerase Chain ReactionPedigreeGene FrequencyHeredodegenerative Disorders, Nervous SystemGenetic VariationDNAGenotypeDinucleotide RepeatsHaplotypesMinisatellite RepeatsNerve Tissue ProteinsGenomic InstabilityTandem Repeat SequencesSequence Analysis, DNAFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticLinkage DisequilibriumNucleic Acid ConformationGenetic Predisposition to DiseaseAge of OnsetModels, GeneticDNA, SatelliteInverted Repeat SequencesGenetic Diseases, InbornCerebellar AtaxiaDNA PrimersIntranuclear Inclusion BodiesPhenotypeChromosome FragilityGenetics, PopulationMuscular Dystrophy, OculopharyngealHeterozygoteChromosome MappingRNA-Binding ProteinsGenome, HumanAmyotrophic Lateral SclerosisDNA RepairNuclear ProteinsCase-Control StudiesNeurodegenerative DiseasesExonsProteinsGenes, DominantPeptidesEvolution, MolecularDNA, PlantDNA Mutational AnalysisReceptors, AndrogenGenetic LociRecombination, GeneticPhylogenyMice, TransgenicExpressed Sequence TagsAmino Acid SequenceMutS Homolog 2 ProteinTranscription, GeneticDNA-Binding ProteinsGenetic TestingDNA ReplicationChromosomes, Human, XSaccharomyces cerevisiaePromoter Regions, GeneticSpecies SpecificityX ChromosomeRNA, MessengerMyoclonic Epilepsies, ProgressiveRepetitive Sequences, Amino AcidNucleic Acid HeteroduplexesLod ScoreDisease Models, AnimalSequence Deletion