Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesMutationPhenotypeRepetitive Sequences, Nucleic AcidBase SequenceMolecular Sequence DataTandem Repeat SequencesPoint MutationSpinocerebellar AtaxiasPedigreeMachado-Joseph DiseasePolymerase Chain ReactionHeredodegenerative Disorders, Nervous SystemPolymorphism, GeneticDNANerve Tissue ProteinsMinisatellite RepeatsGenomic InstabilityMutation, MissenseGenetic MarkersDinucleotide RepeatsGenetic VariationSequence Analysis, DNAGenotypeFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticNucleic Acid ConformationAge of OnsetHeterozygoteInverted Repeat SequencesDNA, SatelliteModels, GeneticDNA PrimersCerebellar AtaxiaChromosome MappingGenetic Diseases, InbornIntranuclear Inclusion BodiesChromosome FragilityRNA-Binding ProteinsMuscular Dystrophy, OculopharyngealExonsNuclear ProteinsAmino Acid SequenceGene FrequencyGenetic LinkageFrameshift MutationDNA RepairAmyotrophic Lateral SclerosisDNA Mutational AnalysisProteinsGenes, DominantGenetics, PopulationHaplotypesNeurodegenerative DiseasesGenome, HumanPeptidesMice, TransgenicDNA-Binding ProteinsTranscription, GeneticSaccharomyces cerevisiaeEvolution, MolecularRNA, MessengerRecombination, GeneticSequence DeletionCell LineDNA ReplicationMutS Homolog 2 ProteinReceptors, AndrogenGenetic TestingDNA, PlantDisease Models, AnimalPhylogenySaccharomyces cerevisiae ProteinsGerm-Line MutationTranscription FactorsRepetitive Sequences, Amino AcidChromosomes, Human, XExpressed Sequence TagsGenetic LociMyoclonic Epilepsies, ProgressiveX ChromosomeFounder EffectPromoter Regions, GeneticTandem Mass SpectrometrySpecies SpecificityNucleic Acid HeteroduplexesMutation RateMutagenesis