Trinucleotide Repeat ExpansionTrinucleotide RepeatsMicrosatellite RepeatsFriedreich AtaxiaDNA Repeat ExpansionAllelesSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinDNA, SatellitePolymorphism, GeneticIron-Binding ProteinsGenetic MarkersBase SequenceMolecular Sequence DataGenetic VariationPolymerase Chain ReactionDNA PrimersMutationRepetitive Sequences, Nucleic AcidSpinocerebellar AtaxiasMachado-Joseph DiseaseHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsDinucleotide RepeatsGenomic InstabilityDNAMinisatellite RepeatsPedigreeFrontotemporal DementiaFlap EndonucleasesTandem Repeat SequencesAnticipation, GeneticGenotypeNucleic Acid ConformationInverted Repeat SequencesSequence Analysis, DNAAge of OnsetCerebellar AtaxiaGene FrequencyIntranuclear Inclusion BodiesGenetic Diseases, InbornChromosome FragilityModels, GeneticMuscular Dystrophy, OculopharyngealPhenotypeRNA-Binding ProteinsHaplotypesHeterozygoteChromosome MappingGenetics, PopulationAmyotrophic Lateral SclerosisNuclear ProteinsNeurodegenerative DiseasesGenetic LinkageDNA RepairGenome, HumanProteinsPeptidesGenes, DominantReceptors, AndrogenMice, TransgenicExonsEvolution, MolecularDNA, PlantMutS Homolog 2 ProteinDNA ReplicationSaccharomyces cerevisiaeTranscription, GeneticRecombination, GeneticAmino Acid SequenceDNA-Binding ProteinsGenetic LociDNA Mutational AnalysisExpressed Sequence TagsMyoclonic Epilepsies, ProgressiveChromosomes, Human, XRNA, MessengerRepetitive Sequences, Amino AcidNucleic Acid HeteroduplexesPolymorphism, Single NucleotidePhylogenyDisease Models, AnimalGenetic Predisposition to DiseaseGenetic TestingX ChromosomeSaccharomyces cerevisiae Proteins