Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionFragile X SyndromeSpinocerebellar DegenerationsMyotonic DystrophyFragile X Mental Retardation ProteinHuntington DiseaseIron-Binding ProteinsAllelesMutationRepetitive Sequences, Nucleic AcidSpinocerebellar AtaxiasMachado-Joseph DiseaseBase SequenceHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsGenomic InstabilityMolecular Sequence DataFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticMicrosatellite RepeatsDNANucleic Acid ConformationInverted Repeat SequencesMinisatellite RepeatsPedigreeTandem Repeat SequencesRNA-Binding ProteinsCerebellar AtaxiaIntranuclear Inclusion BodiesAge of OnsetChromosome FragilityMuscular Dystrophy, OculopharyngealPolymerase Chain ReactionGenetic Diseases, InbornReceptor, Metabotropic Glutamate 5Amyotrophic Lateral SclerosisPolymorphism, GeneticNuclear ProteinsNeurodegenerative DiseasesPhenotypePeptidesProteinsDNA RepairSequence Analysis, DNAMice, TransgenicReceptors, AndrogenModels, GeneticAtaxiaGenotypeDNA PrimersHeterozygoteDisease Models, AnimalDNA ReplicationGenes, DominantTranscription, GeneticMyoclonic Epilepsies, ProgressiveRNA, MessengerGenome, HumanExonsGenetic MarkersMutS Homolog 2 ProteinRepetitive Sequences, Amino AcidNucleic Acid HeteroduplexesSaccharomyces cerevisiaeAmino Acid SequenceDNA-Binding ProteinsChromosomes, Human, XGene Frequency