Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsMutationIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidBase SequenceMolecular Sequence DataTandem Repeat SequencesPoint MutationPedigreeSpinocerebellar AtaxiasMachado-Joseph DiseasePolymerase Chain ReactionMutation, MissenseDNAPolymorphism, GeneticHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsGenetic MarkersSequence Analysis, DNAMinisatellite RepeatsGenomic InstabilityGenotypeDinucleotide RepeatsGenetic VariationHeterozygotePhenotypeFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticAge of OnsetNucleic Acid ConformationDNA PrimersModels, GeneticInverted Repeat SequencesDNA, SatelliteDNA Mutational AnalysisCerebellar AtaxiaExonsChromosome MappingGenetic Diseases, InbornIntranuclear Inclusion BodiesChromosome FragilityNuclear ProteinsGene FrequencyMuscular Dystrophy, OculopharyngealRNA-Binding ProteinsGenetic LinkageAmino Acid SequenceGenetic TestingHaplotypesAmyotrophic Lateral SclerosisFrameshift MutationDNA RepairMice, TransgenicGenetics, PopulationProteinsNeurodegenerative DiseasesGenes, DominantPeptidesGenome, HumanDNA-Binding ProteinsTranscription, GeneticDisease Models, AnimalEvolution, MolecularGenetic Predisposition to DiseaseCell LineSaccharomyces cerevisiaeRNA, MessengerMutS Homolog 2 ProteinReceptors, AndrogenDNA ReplicationRecombination, GeneticSequence DeletionDNA, PlantRepetitive Sequences, Amino AcidTranscription FactorsPromoter Regions, GeneticGerm-Line MutationPhylogenyChromosomes, Human, XSpecies SpecificityExpressed Sequence TagsMyoclonic Epilepsies, ProgressiveBrainSaccharomyces cerevisiae ProteinsNucleic Acid HeteroduplexesFounder EffectTandem Mass SpectrometryGenetic LociX Chromosome