Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinIron-Binding ProteinsAllelesBase SequenceRepetitive Sequences, Nucleic AcidMutationMolecular Sequence DataSpinocerebellar AtaxiasMachado-Joseph DiseaseGenomic InstabilityHeredodegenerative Disorders, Nervous SystemDNASequence Analysis, DNANerve Tissue ProteinsMicrosatellite RepeatsNucleic Acid ConformationFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticTandem Repeat SequencesInverted Repeat SequencesPolymerase Chain ReactionMinisatellite RepeatsPedigreeCerebellar AtaxiaAge of OnsetIntranuclear Inclusion BodiesChromosome FragilityMuscular Dystrophy, OculopharyngealAmino Acid SequenceGenome, HumanRNA-Binding ProteinsGenetic Diseases, InbornPolymorphism, GeneticModels, GeneticExonsChromosome MappingPhenotypeAmyotrophic Lateral SclerosisNuclear ProteinsPhylogenyGenomicsProteinsNeurodegenerative DiseasesDNA PrimersTranscription, GeneticGenetic VariationDNA RepairPeptidesSequence AlignmentGenotypeRNA, MessengerGenomeEvolution, MolecularGenetic MarkersMice, TransgenicGenome, ViralReceptors, AndrogenCloning, MolecularIntronsDNA-Binding ProteinsSaccharomyces cerevisiaeDNA ReplicationRecombination, GeneticDNA, ComplementarySequence Homology, Nucleic AcidGenes, DominantHeterozygoteCell LineMyoclonic Epilepsies, ProgressiveBlotting, SouthernPromoter Regions, GeneticMutS Homolog 2 ProteinRepetitive Sequences, Amino AcidNucleic Acid HeteroduplexesGene FrequencyDNA Mutational AnalysisDisease Models, AnimalRNAHaplotypesDNA, SatelliteOpen Reading FramesGenome, BacterialExpressed Sequence TagsGenomic LibrarySaccharomyces cerevisiae Proteins