Trinucleotide RepeatsTrinucleotide Repeat ExpansionFriedreich AtaxiaFragile X SyndromeHuntington DiseaseSpinocerebellar DegenerationsFragile X Mental Retardation ProteinBase SequenceRepetitive Sequences, Nucleic AcidNucleic Acid ConformationMachado-Joseph DiseaseAllelesMolecular Sequence DataMicrosatellite RepeatsDNAHeredodegenerative Disorders, Nervous SystemGenomic InstabilityNerve Tissue ProteinsOligonucleotidesFlap EndonucleasesMuscular Dystrophy, OculopharyngealChromosome FragilityIron-Binding ProteinsMutationPolymerase Chain ReactionPolymorphism, GeneticRNA-Binding ProteinsAnticipation, GeneticCerebellar AtaxiaPedigreeGenetic Diseases, InbornMinisatellite RepeatsInverted Repeat SequencesAge of OnsetReceptors, AndrogenOligodeoxyribonucleotidesNucleic Acid HeteroduplexesIntranuclear Inclusion BodiesNucleotidesChromosome Fragile SitesDinucleotide RepeatsSequence Analysis, DNANeurodegenerative DiseasesPeptidesModels, GeneticDNA RepairTandem Repeat SequencesDNA PrimersNuclear ProteinsGene Knock-In TechniquesGuanineTranscription, GeneticRNAOligoribonucleotidesMosaicismGenetic VariationPolydeoxyribonucleotidesChromosomes, Human, XCodonSequence Tagged SitesGenotypePhenotypeDNA ReplicationSaccharomyces cerevisiaeGenome, HumanRNA, MessengerGenetic MarkersChromosome MappingHeterozygoteMuscular Atrophy, SpinalGene FrequencyExpressed Sequence TagsExonsDNA, SatelliteAmino Acid SequenceMice, TransgenicAtaxiaTemplates, GeneticPoint MutationSequence DeletionNucleic Acid DenaturationModels, MolecularMutS Homolog 2 ProteinBase PairingMutagenesisGenes, DominantDNA-Binding ProteinsX ChromosomeNervous System DiseasesSaccharomyces cerevisiae ProteinsEscherichia coliEndodeoxyribonucleasesFathersDNA Mutational AnalysisBinding SitesDNA, PlantCytosineGenetic LociBlotting, SouthernDNA, Fungal