Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidMutationBase SequenceMolecular Sequence DataSpinocerebellar AtaxiasMachado-Joseph DiseaseTandem Repeat SequencesHeredodegenerative Disorders, Nervous SystemDNAPolymorphism, GeneticDNA, SatelliteNerve Tissue ProteinsGenomic InstabilityDinucleotide RepeatsGenetic MarkersMinisatellite RepeatsPolymerase Chain ReactionFrontotemporal DementiaFlap EndonucleasesPedigreeAnticipation, GeneticNucleic Acid ConformationGenetic VariationInverted Repeat SequencesSequence Analysis, DNACerebellar AtaxiaAge of OnsetIntranuclear Inclusion BodiesChromosome FragilityGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealModels, GeneticRNA-Binding ProteinsGenotypeChromosome MappingDNA PrimersPhenotypeAmyotrophic Lateral SclerosisNuclear ProteinsGene FrequencyHaplotypesNeurodegenerative DiseasesHeterozygoteGenetics, PopulationGenetic LinkageAmino Acid SequenceGenome, HumanDNA RepairPeptidesProteinsEvolution, MolecularTranscription, GeneticDNA, PlantReceptors, AndrogenRepetitive Sequences, Amino AcidRecombination, GeneticDNA ReplicationExonsMice, TransgenicSaccharomyces cerevisiaeMutS Homolog 2 ProteinGenes, DominantDNA-Binding ProteinsRNA, MessengerPhylogenyExpressed Sequence TagsMyoclonic Epilepsies, ProgressiveSpecies SpecificityChromosomes, Human, XDNA Mutational AnalysisNucleic Acid HeteroduplexesX ChromosomeGenetic LociDisease Models, AnimalCloning, MolecularSequence Deletion