Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinIron-Binding ProteinsAllelesMutationBase SequenceMolecular Sequence DataRepetitive Sequences, Nucleic AcidRNA ReplicasePolymerase Chain ReactionSpinocerebellar AtaxiasMachado-Joseph DiseaseDNA-Directed RNA PolymerasesHeredodegenerative Disorders, Nervous SystemDNAViral ProteinsNerve Tissue ProteinsDNA-Directed DNA PolymeraseTranscription, GeneticGenomic InstabilityFlap EndonucleasesNucleic Acid ConformationMicrosatellite RepeatsFrontotemporal DementiaAnticipation, GeneticAmino Acid SequencePedigreeInverted Repeat SequencesTandem Repeat SequencesMinisatellite RepeatsAge of OnsetCerebellar AtaxiaRNA, ViralCell LineIntranuclear Inclusion BodiesChromosome FragilityRNA-Binding ProteinsMuscular Dystrophy, OculopharyngealRNA, MessengerGenetic Diseases, InbornPolymorphism, GeneticVesiculovirusRNA Polymerase IINuclear ProteinsSequence Analysis, DNAAmyotrophic Lateral SclerosisCloning, MolecularPhenotypeDNA PrimersNeurodegenerative DiseasesDNA RepairRhabdoviridaeProteinsDNA ReplicationPeptidesParainfluenza VaccinesSendai virusModels, GeneticGenotypeNucleocapsid ProteinsMice, TransgenicDNA-Binding ProteinsSaccharomyces cerevisiaeRNA-Directed DNA PolymeraseDNA, ViralReceptors, AndrogenPromoter Regions, GeneticVirus ReplicationGene Products, polGenome, ViralRNA NucleotidyltransferasesPlasmidsRNA CapsExonsDNA Polymerase betaGenes, DominantRNAGenome, HumanGenetic VariationHeterozygoteGenetic MarkersSequence AlignmentNucleoproteinsGenes, ViralSaccharomyces cerevisiae ProteinsTranscription FactorsRepetitive Sequences, Amino AcidMyoclonic Epilepsies, ProgressiveNucleic Acid HeteroduplexesGene FrequencyMutS Homolog 2 ProteinDNA Polymerase IDNA Mutational Analysis