Muscular Atrophy, SpinalSpinal Muscular Atrophies of ChildhoodSurvival of Motor Neuron 1 ProteinSMN Complex ProteinsSurvival of Motor Neuron 2 ProteinAtrophyMuscular AtrophySpinal CordNeuronal Apoptosis-Inhibitory ProteinCyclic AMP Response Element-Binding ProteinMotor NeuronsRNA-Binding ProteinsAnterior Horn CellsMuscular Disorders, AtrophicBulbo-Spinal Atrophy, X-LinkedNerve Tissue ProteinsSpinal Cord InjuriesRibonucleoproteins, Small NuclearDEAD Box Protein 20Chromosomes, Human, Pair 5ExonsSpinal Cord DiseasesCoiled BodiesMotor Neuron DiseasesnRNP Core ProteinsDisease Models, AnimalOptic AtrophyPedigreeHeterozygote DetectionGlycine-tRNA LigaseMuscle, SkeletalSpinal Nerve RootsMice, TransgenicInjections, SpinalPhenotypeGene DeletionNeuromuscular Junction DiseasesSpinal NervesRNA SplicingHomozygoteArthrogryposisMultiple System AtrophyAnesthesia, SpinalElectromyographyAxonsNeuromuscular JunctionContractureNerve DegenerationReceptors, AndrogenCharcot-Marie-Tooth DiseaseNeuromuscular DiseasesGene DosageSpinal Cord NeoplasmsSpinal CanalMutationMuscle WeaknessVocal Cord ParalysisSpinal DiseasesSpinal Cord CompressionGenes, RecessiveNeural ConductionChemistry, AnalyticSpinal NeoplasmsFasciculationGenetic LinkageGenes, DominantPrenatal DiagnosisSpliceosomesGenetic CounselingRespiratory ParalysisAlternative SplicingAmyotrophic Lateral SclerosisBulbar Palsy, ProgressiveSpinal StenosisSpinal FusionMagnetic Resonance ImagingValproic AcidGenetic TestingMotor ActivityAclarubicinMolecular Sequence DataFibroblastsOlivopontocerebellar AtrophiesMuscular DystrophiesMutation, MissenseHereditary Sensory and Motor NeuropathyBase SequenceGenetic TherapyHeterogeneous-Nuclear Ribonucleoprotein Group A-BHeLa CellsMusclesSpinal InjuriesMuscle Strength DynamometerGyrate AtrophyRNA, MessengerScoliosisMice, KnockoutTrinucleotide Repeat ExpansionPolymerase Chain ReactionHeterozygote