Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidMutationTandem Repeat SequencesBase SequenceSpinocerebellar AtaxiasMachado-Joseph DiseaseMolecular Sequence DataHeredodegenerative Disorders, Nervous SystemMinisatellite RepeatsNerve Tissue ProteinsPolymorphism, GeneticGenomic InstabilityDNADinucleotide RepeatsGenetic MarkersFrontotemporal DementiaPedigreeFlap EndonucleasesPolymerase Chain ReactionAnticipation, GeneticGenetic VariationNucleic Acid ConformationInverted Repeat SequencesDNA, SatelliteSequence Analysis, DNACerebellar AtaxiaAge of OnsetIntranuclear Inclusion BodiesChromosome FragilityGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealGenotypeRNA-Binding ProteinsModels, GeneticDNA PrimersPhenotypeChromosome MappingAmyotrophic Lateral SclerosisHaplotypesGene FrequencyGenetics, PopulationHeterozygoteNeurodegenerative DiseasesNuclear ProteinsDNA RepairPeptidesGenome, HumanProteinsGenetic LinkageEvolution, MolecularReceptors, AndrogenMice, TransgenicAmino Acid SequenceMutS Homolog 2 ProteinDNA, PlantGenes, DominantDNA ReplicationTranscription, GeneticExonsRepetitive Sequences, Amino AcidSaccharomyces cerevisiaeExpressed Sequence TagsDNA-Binding ProteinsRecombination, GeneticPhylogenyTandem Mass SpectrometryMyoclonic Epilepsies, ProgressiveDisease Models, AnimalRNA, MessengerChromosomes, Human, XNucleic Acid HeteroduplexesGenetic LociSpecies SpecificityDNA Mutational Analysis