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 ProteinsGenomic InstabilityPolymorphism, GeneticDNADinucleotide RepeatsGenetic MarkersFrontotemporal DementiaPedigreeFlap EndonucleasesPolymerase Chain ReactionAnticipation, GeneticGenetic VariationNucleic Acid ConformationInverted Repeat SequencesDNA, SatelliteSequence Analysis, DNACerebellar AtaxiaAge of OnsetIntranuclear Inclusion BodiesChromosome FragilityGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealGenotypeModels, GeneticRNA-Binding ProteinsDNA PrimersPhenotypeAmyotrophic Lateral SclerosisChromosome MappingHaplotypesGenetics, PopulationGene FrequencyNuclear ProteinsNeurodegenerative DiseasesHeterozygotePeptidesDNA RepairGenome, HumanProteinsGenetic LinkageMice, TransgenicEvolution, MolecularReceptors, AndrogenAmino Acid SequenceDNA, PlantMutS Homolog 2 ProteinDNA ReplicationGenes, DominantTranscription, GeneticExonsPhylogenyRepetitive Sequences, Amino AcidSaccharomyces cerevisiaeDNA-Binding ProteinsMyoclonic Epilepsies, ProgressiveExpressed Sequence TagsRecombination, GeneticTandem Mass SpectrometryRNA, MessengerChromosomes, Human, XDisease Models, AnimalNucleic Acid HeteroduplexesGenetic LociDNA Mutational AnalysisSpecies Specificity