Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidMutationTandem Repeat SequencesBase SequenceSpinocerebellar AtaxiasMachado-Joseph DiseaseMolecular Sequence DataHeredodegenerative Disorders, Nervous SystemMinisatellite RepeatsNerve Tissue ProteinsGenomic InstabilityPolymorphism, GeneticDNADinucleotide RepeatsGenetic MarkersFrontotemporal DementiaFlap EndonucleasesPedigreePolymerase Chain ReactionAnticipation, GeneticNucleic Acid ConformationGenetic VariationInverted Repeat SequencesDNA, SatelliteCerebellar AtaxiaSequence Analysis, DNAAge of OnsetIntranuclear Inclusion BodiesChromosome FragilityGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealGenotypeRNA-Binding ProteinsModels, GeneticDNA PrimersChromosome MappingAmyotrophic Lateral SclerosisPhenotypeGene FrequencyHaplotypesGenetics, PopulationNeurodegenerative DiseasesNuclear ProteinsHeterozygoteDNA RepairPeptidesGenome, HumanProteinsGenetic LinkageReceptors, AndrogenEvolution, MolecularMice, TransgenicAmino Acid SequenceTranscription, GeneticMutS Homolog 2 ProteinDNA, PlantDNA ReplicationGenes, DominantExonsRepetitive Sequences, Amino AcidSaccharomyces cerevisiaeExpressed Sequence TagsDNA-Binding ProteinsRecombination, GeneticMyoclonic Epilepsies, ProgressiveTandem Mass SpectrometryPhylogenyChromosomes, Human, XRNA, MessengerNucleic Acid HeteroduplexesGenetic LociDNA Mutational AnalysisDisease Models, Animal