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 InstabilityFrontotemporal DementiaDNAFlap EndonucleasesAnticipation, GeneticNucleic Acid ConformationInverted Repeat SequencesMinisatellite RepeatsAge of OnsetTandem Repeat SequencesCerebellar AtaxiaIntranuclear Inclusion BodiesChromosome FragilityMuscular Dystrophy, OculopharyngealPolymerase Chain ReactionRNA-Binding ProteinsPhenotypePolymorphism, GeneticGenetic MarkersModels, GeneticNuclear ProteinsChromosome MappingAmyotrophic Lateral SclerosisGenome, HumanGenetic LinkageProteinsDiseaseNeurodegenerative DiseasesGenes, DominantSequence Analysis, DNAPeptidesGenotypeDNA RepairHaplotypesReceptors, AndrogenMice, TransgenicExonsHeterozygoteDNA PrimersRepetitive Sequences, Amino AcidGene FrequencyDNA Mutational AnalysisChromosomes, Human, XTranscription, GeneticAmino Acid SequenceMyoclonic Epilepsies, ProgressiveDNA ReplicationDisease Models, AnimalSaccharomyces cerevisiaeGenetic TestingGenetic VariationRNA, MessengerMutS Homolog 2 ProteinDNA-Binding ProteinsNucleic Acid HeteroduplexesGenetic Predisposition to DiseaseDNA, Satellite