Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMutationMicrosatellite RepeatsBase SequenceMolecular Sequence DataIron-Binding ProteinsAllelesPoint MutationSequence Analysis, DNAGenetic VariationRepetitive Sequences, Nucleic AcidPolymerase Chain ReactionTandem Repeat SequencesSpinocerebellar AtaxiasPedigreeMachado-Joseph DiseaseDNAPhylogenyNucleotidesPolymorphism, GeneticHeredodegenerative Disorders, Nervous SystemAmino Acid SubstitutionNerve Tissue ProteinsMinisatellite RepeatsNucleic Acid ConformationGenomic InstabilityGenetic MarkersMutation, MissenseDinucleotide RepeatsGenotypeFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticAmino Acid SequenceInverted Repeat SequencesDNA PrimersAge of OnsetDNA, SatelliteModels, GeneticHeterozygoteChromosome MappingCerebellar AtaxiaGenetic Diseases, InbornPhenotypeIntranuclear Inclusion BodiesRNA-Binding ProteinsExonsChromosome FragilityGene FrequencyMuscular Dystrophy, OculopharyngealNuclear ProteinsDNA RepairFrameshift MutationHaplotypesGenetic LinkagePolymorphism, Single NucleotideProteinsTranscription, GeneticGenetics, PopulationDNA Mutational AnalysisAmyotrophic Lateral SclerosisGenome, HumanEvolution, MolecularPeptidesGenes, DominantNeurodegenerative DiseasesDNA-Binding ProteinsSaccharomyces cerevisiaeRNA, MessengerCloning, MolecularRecombination, GeneticDNA ReplicationMice, TransgenicCell LineSequence DeletionMutS Homolog 2 ProteinReceptors, AndrogenDNA, PlantGenetic TestingSpecies SpecificityPromoter Regions, GeneticRepetitive Sequences, Amino AcidSaccharomyces cerevisiae ProteinsGerm-Line MutationExpressed Sequence TagsRNANucleic Acid HeteroduplexesEscherichia coliChromosomes, Human, XGenetic LociTranscription FactorsDisease Models, Animal