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, GeneticDinucleotide RepeatsDNAGenetic MarkersFrontotemporal DementiaFlap EndonucleasesPedigreeAnticipation, GeneticPolymerase Chain ReactionNucleic Acid ConformationGenetic VariationInverted Repeat SequencesDNA, SatelliteCerebellar AtaxiaAge of OnsetSequence Analysis, DNAIntranuclear Inclusion BodiesChromosome FragilityGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealGenotypeRNA-Binding ProteinsModels, GeneticDNA PrimersChromosome MappingAmyotrophic Lateral SclerosisPhenotypeGene FrequencyHaplotypesNeurodegenerative DiseasesGenetics, PopulationHeterozygoteNuclear ProteinsDNA RepairPeptidesGenome, HumanProteinsGenetic LinkageReceptors, AndrogenEvolution, MolecularMice, TransgenicMutS Homolog 2 ProteinDNA, PlantDNA ReplicationGenes, DominantAmino Acid SequenceTranscription, GeneticExonsRepetitive Sequences, Amino AcidSaccharomyces cerevisiaeExpressed Sequence TagsDNA-Binding ProteinsMyoclonic Epilepsies, ProgressiveRecombination, GeneticTandem Mass SpectrometryChromosomes, Human, XPhylogenyNucleic Acid HeteroduplexesRNA, MessengerGenetic LociDNA Mutational AnalysisDisease Models, Animal