Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinIron-Binding ProteinsAllelesMutationRepetitive Sequences, Nucleic AcidGenetic Diseases, InbornMachado-Joseph DiseaseSpinocerebellar AtaxiasBase SequenceHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsPedigreeMolecular Sequence DataMicrosatellite RepeatsGenomic InstabilityDNAFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticAge of OnsetNucleic Acid ConformationInverted Repeat SequencesMinisatellite RepeatsTandem Repeat SequencesCerebellar AtaxiaIntranuclear Inclusion BodiesPolymerase Chain ReactionPhenotypeChromosome FragilityMuscular Dystrophy, OculopharyngealRNA-Binding ProteinsPolymorphism, GeneticGenetic MarkersChromosome MappingModels, GeneticGenetic LinkageNuclear ProteinsGenome, HumanAmyotrophic Lateral SclerosisProteinsNeurodegenerative DiseasesDiseaseGenes, DominantSequence Analysis, DNAGenotypePeptidesDNA RepairHaplotypesMice, TransgenicHeterozygoteExonsReceptors, AndrogenDNA PrimersDNA Mutational AnalysisBipolar DisorderGene FrequencyDisease Models, AnimalRepetitive Sequences, Amino AcidAmino Acid SequenceChromosomes, Human, XTranscription, GeneticGenetic TestingGenetic Predisposition to DiseaseGenetic VariationMyoclonic Epilepsies, ProgressiveRNA, MessengerDNA ReplicationSaccharomyces cerevisiaeDNA-Binding ProteinsBrainMutS Homolog 2 ProteinMental DisordersNucleic Acid HeteroduplexesDNA, Satellite