Trinucleotide Repeat ExpansionMyotonic DystrophyTrinucleotide RepeatsDNA Repeat ExpansionFriedreich AtaxiaSpinocerebellar DegenerationsFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinIron-Binding ProteinsMuscular DystrophiesAllelesMyotonic DisordersRepetitive Sequences, Nucleic AcidMutationBase SequenceSpinocerebellar AtaxiasHeredodegenerative Disorders, Nervous SystemMuscular Dystrophy, DuchenneRNA-Binding ProteinsMachado-Joseph DiseasePedigreeMolecular Sequence DataAnticipation, GeneticGenomic InstabilityCorneal Dystrophies, HereditaryDNANerve Tissue ProteinsMicrosatellite RepeatsMinisatellite RepeatsAge of OnsetMuscular Dystrophy, OculopharyngealFrontotemporal DementiaFlap EndonucleasesNucleic Acid ConformationMuscular Dystrophy, AnimalMyotoniaPolymerase Chain ReactionTandem Repeat SequencesInverted Repeat SequencesProtein-Serine-Threonine KinasesMuscular Dystrophy, FacioscapulohumeralCerebellar AtaxiaIntranuclear Inclusion BodiesPhenotypeChromosome FragilityGenetic Diseases, InbornFuchs' Endothelial DystrophyPolymorphism, GeneticExonsMice, TransgenicNuclear ProteinsGenes, DominantAmyotrophic Lateral SclerosisMuscle, SkeletalRNANeurodegenerative DiseasesModels, GeneticChromosomes, Human, Pair 19DNA PrimersRNA, MessengerRetinal DystrophiesGenetic MarkersDisease Models, AnimalProteinsPeptidesHeterozygoteDystrophinDNA RepairGenotypeSequence Analysis, DNADNA Mutational AnalysisReceptors, AndrogenGenetic LinkageAlternative SplicingTranscription, GeneticAmino Acid SequenceGenetic TestingDNA-Binding ProteinsChromosome MappingCell LineBlotting, SouthernHaplotypesGene FrequencyGenome, HumanDNA ReplicationMosaicismMyoclonic Epilepsies, ProgressiveBrainRepetitive Sequences, Amino AcidMutS Homolog 2 ProteinMyoblastsNucleic Acid HeteroduplexesSaccharomyces cerevisiae