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 DetectionMuscle, SkeletalGlycine-tRNA LigaseSpinal Nerve RootsMice, TransgenicPhenotypeInjections, SpinalPrenatal DiagnosisGene DeletionNeuromuscular Junction DiseasesHomozygoteSpinal NervesRNA SplicingArthrogryposisMultiple System AtrophyAnesthesia, SpinalElectromyographyAxonsNeuromuscular JunctionContractureNerve DegenerationNeuromuscular DiseasesReceptors, AndrogenCharcot-Marie-Tooth DiseaseMutationSpinal Cord NeoplasmsGene DosageSpinal CanalMuscle WeaknessVocal Cord ParalysisSpinal DiseasesSpinal Cord CompressionGenes, RecessiveNeural ConductionSpinal NeoplasmsGenetic LinkageChemistry, AnalyticMagnetic Resonance ImagingGenes, DominantFasciculationGenetic CounselingSpliceosomesRespiratory ParalysisAmyotrophic Lateral SclerosisAlternative SplicingSpinal StenosisBulbar Palsy, ProgressiveGenetic TestingSpinal FusionValproic AcidMotor ActivityMolecular Sequence DataMuscular DystrophiesFibroblastsAclarubicinOlivopontocerebellar AtrophiesBase SequencePolymerase Chain ReactionHereditary Sensory and Motor NeuropathyMutation, MissenseGenetic TherapyHeterogeneous-Nuclear Ribonucleoprotein Group A-BHeLa CellsMusclesSpinal InjuriesRNA, MessengerMuscle Strength DynamometerGyrate AtrophyScoliosisHeterozygoteMice, KnockoutTime Factors