PhenotypeMutationPedigreeDNA Mutational AnalysisGenotypeMutation, MissenseSyndromeMolecular Sequence DataAge of OnsetHomozygoteHeterozygoteAllelesBase SequencePoint MutationGenetic Predisposition to DiseaseGenetic HeterogeneityGenetic Association StudiesAbnormalities, MultiplePenetranceExonsMitochondrial DiseasesCodon, NonsenseFamily HealthFrameshift MutationGenetic LinkageIntellectual DisabilityPolymerase Chain ReactionGene DeletionGenes, DominantAmino Acid SequenceChromosome MappingConsanguinityPolymorphism, GeneticGenetic TestingChondro-4-SulfataseMucopolysaccharidosis VIGenes, RecessivePolymorphism, Single NucleotideGenetic VariationHaplotypesChromosomes, Human, XSequence DeletionMyotonic DisordersSequence Analysis, DNAHeterozygote DetectionAmino Acid SubstitutionChromosome DeletionCells, CulturedGenetic Diseases, InbornMuscular Dystrophies, Limb-GirdleDNA, MitochondrialPolymorphism, Single-Stranded ConformationalFibroblastsNAV1.5 Voltage-Gated Sodium ChannelDNA Repeat ExpansionMELAS SyndromeCommon Variable ImmunodeficiencyCohort StudiesDisease Models, AnimalHemoglobin EGenetic Diseases, X-LinkedMembrane ProteinsRNA, MessengerGenetic Complementation TestMitochondrial EncephalomyopathiesGene FrequencyMental Retardation, X-LinkedLong QT SyndromeGenetic MarkersHemoglobin HMuscular DystrophiesCell LinePanuveitisDisease ProgressionX ChromosomeGene Expression ProfilingOphthalmia, SympatheticCraniofacial AbnormalitiesDistal MyopathiesBrainMice, Inbred C57BLInfant, NewbornMicrocephalyReverse Transcriptase Polymerase Chain ReactionRetinoschisisMice, TransgenicMuscle HypotoniaTranscription FactorsMice, KnockoutMuscular DiseasesModels, GeneticDNA-Binding ProteinsDNA PrimersCarrier ProteinsGene ExpressionOphthalmoplegia, Chronic Progressive ExternalRNA Splice SitesHereditary Sensory and Motor NeuropathySeverity of Illness IndexImmunohistochemistry