Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionFragile X SyndromeSpinocerebellar DegenerationsMyotonic DystrophyFragile X Mental Retardation ProteinHuntington DiseaseIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidMutationSpinocerebellar AtaxiasBase SequenceMachado-Joseph DiseaseHeredodegenerative Disorders, Nervous SystemTandem Repeat SequencesMolecular Sequence DataNerve Tissue ProteinsMicrosatellite RepeatsMinisatellite RepeatsGenomic InstabilityInverted Repeat SequencesDNAFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticNucleic Acid ConformationPedigreeRNA-Binding ProteinsCerebellar AtaxiaIntranuclear Inclusion BodiesAge of OnsetChromosome FragilityPolymerase Chain ReactionMuscular Dystrophy, OculopharyngealGenetic Diseases, InbornPolymorphism, GeneticNuclear ProteinsAmyotrophic Lateral SclerosisNeurodegenerative DiseasesRepetitive Sequences, Amino AcidPhenotypeSequence Analysis, DNAProteinsPeptidesDNA RepairModels, GeneticReceptors, AndrogenDinucleotide RepeatsMice, TransgenicAmino Acid SequenceGenotypeDNA PrimersTranscription, GeneticAtaxiaAnkyrin RepeatHeterozygoteDNA ReplicationGenome, HumanExonsGenetic MarkersRNA, MessengerDNA-Binding ProteinsGenes, DominantMyoclonic Epilepsies, ProgressiveSaccharomyces cerevisiaeDisease Models, AnimalMutS Homolog 2 ProteinNucleic Acid HeteroduplexesGenetic VariationGene FrequencyChromosomes, Human, XDNA, SatelliteCell Line