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 SystemMicrosatellite RepeatsNerve Tissue ProteinsGenomic InstabilityFrontotemporal DementiaDNAFlap EndonucleasesPedigreeAnticipation, GeneticMinisatellite RepeatsNucleic Acid ConformationInverted Repeat SequencesTandem Repeat SequencesPolymerase Chain ReactionAge of OnsetCerebellar AtaxiaIntranuclear Inclusion BodiesChromosome FragilityMuscular Dystrophy, OculopharyngealGenetic Diseases, InbornRNA-Binding ProteinsGenetic LociPolymorphism, GeneticPhenotypeAmyotrophic Lateral SclerosisMice, TransgenicNuclear ProteinsNeurodegenerative DiseasesSequence Analysis, DNAGenotypeModels, GeneticChromosome MappingDisease Models, AnimalProteinsPeptidesGenetic MarkersDNA RepairDNA PrimersReceptors, AndrogenRNA, MessengerGenes, DominantGenome, HumanAmino Acid SequenceTranscription, GeneticGenetic LinkageHeterozygoteGenetic VariationDNA-Binding ProteinsDNA ReplicationGene FrequencyExonsMyoclonic Epilepsies, ProgressiveSaccharomyces cerevisiaeMutS Homolog 2 ProteinCell LineRepetitive Sequences, Amino AcidNucleic Acid HeteroduplexesDNA Mutational AnalysisRecombination, Genetic