Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinBrassicaIron-Binding ProteinsAllelesBase SequenceMolecular Sequence DataMutationRepetitive Sequences, Nucleic AcidSpinocerebellar AtaxiasMachado-Joseph DiseaseHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsMicrosatellite RepeatsGenomic InstabilityDNAFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticPedigreeNucleic Acid ConformationMinisatellite RepeatsInverted Repeat SequencesTandem Repeat SequencesAge of OnsetCerebellar AtaxiaIntranuclear Inclusion BodiesChromosome FragilityPolymerase Chain ReactionMuscular Dystrophy, OculopharyngealGenetic Diseases, InbornRNA-Binding ProteinsPolymorphism, GeneticGenetic LociPhenotypeAmyotrophic Lateral SclerosisNuclear ProteinsNeurodegenerative DiseasesSequence Analysis, DNAModels, GeneticChromosome MappingProteinsGenotypePeptidesGenetic MarkersDNA RepairMice, TransgenicReceptors, AndrogenDNA PrimersGenes, DominantGenome, HumanTranscription, GeneticGenetic VariationHeterozygoteGenetic LinkageDNA ReplicationExonsGene FrequencyAmino Acid SequenceMyoclonic Epilepsies, ProgressiveDNA-Binding ProteinsRNA, MessengerSaccharomyces cerevisiaeMutS Homolog 2 ProteinRepetitive Sequences, Amino AcidDisease Models, AnimalNucleic Acid HeteroduplexesRecombination, Genetic