Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinExonsMicrosatellite RepeatsIron-Binding ProteinsAllelesMutationRepetitive Sequences, Nucleic AcidBase SequenceSpinocerebellar AtaxiasMachado-Joseph DiseaseMolecular Sequence DataHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsDNAPolymorphism, GeneticGenomic InstabilityDinucleotide RepeatsPedigreeGenetic MarkersPolymerase Chain ReactionMinisatellite RepeatsFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticTandem Repeat SequencesNucleic Acid ConformationGenetic VariationInverted Repeat SequencesDNA, SatelliteSequence Analysis, DNACerebellar AtaxiaAge of OnsetIntranuclear Inclusion BodiesChromosome FragilityGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealGenotypeModels, GeneticRNA-Binding ProteinsDNA PrimersChromosome MappingPhenotypeAmyotrophic Lateral SclerosisHaplotypesHeterozygoteGene FrequencyNuclear ProteinsNeurodegenerative DiseasesGenetics, PopulationGenome, HumanDNA RepairGenetic LinkageProteinsPeptidesReceptors, AndrogenMice, TransgenicEvolution, MolecularTranscription, GeneticAmino Acid SequenceGenes, DominantMutS Homolog 2 ProteinDNA Mutational AnalysisRNA, MessengerDNA, PlantDNA ReplicationExpressed Sequence TagsIntronsDNA-Binding ProteinsSaccharomyces cerevisiaeMyoclonic Epilepsies, ProgressiveRecombination, GeneticChromosomes, Human, XRepetitive Sequences, Amino AcidNucleic Acid HeteroduplexesGenetic LociPhylogenySequence DeletionDisease Models, Animal