Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionMutationSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidBase SequenceTandem Repeat SequencesMolecular Sequence DataPoint MutationSpinocerebellar AtaxiasPedigreeMachado-Joseph DiseasePolymorphism, GeneticPolymerase Chain ReactionHeredodegenerative Disorders, Nervous SystemGenetic MarkersDNAMinisatellite RepeatsNerve Tissue ProteinsGenomic InstabilityDinucleotide RepeatsGenetic VariationMutation, MissenseSequence Analysis, DNAGenotypeChromosome MappingGenetic LociFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticNucleic Acid ConformationDNA, SatelliteHeterozygoteModels, GeneticAge of OnsetInverted Repeat SequencesPhenotypeDNA PrimersCerebellar AtaxiaGenetic LinkageGenetic Diseases, InbornIntranuclear Inclusion BodiesChromosome FragilityGene FrequencyRNA-Binding ProteinsMuscular Dystrophy, OculopharyngealExonsNuclear ProteinsAmino Acid SequenceGenetics, PopulationFrameshift MutationAmyotrophic Lateral SclerosisGenes, DominantDNA RepairGenome, HumanProteinsDNA Mutational AnalysisNeurodegenerative DiseasesHaplotypesPeptidesEvolution, MolecularTranscription, GeneticDNA-Binding ProteinsRecombination, GeneticMice, TransgenicSaccharomyces cerevisiaeDNA, PlantDNA ReplicationSequence DeletionMutS Homolog 2 ProteinReceptors, AndrogenGenetic TestingRNA, MessengerPhylogenyCell LineQuantitative Trait LociX ChromosomeRepetitive Sequences, Amino AcidChromosomes, Human, XExpressed Sequence TagsGerm-Line MutationDisease Models, AnimalGenetic Predisposition to DiseaseSpecies SpecificitySaccharomyces cerevisiae ProteinsFounder EffectMyoclonic Epilepsies, ProgressiveTranscription FactorsPromoter Regions, GeneticNucleic Acid HeteroduplexesTandem Mass Spectrometry