Research Embryo CreationSMN Complex ProteinsMuscular Atrophy, SpinalSurvival of Motor Neuron 1 ProteinSurvival of Motor Neuron 2 ProteinSpinal Muscular Atrophies of ChildhoodNeuronsNeuronal Apoptosis-Inhibitory ProteinCyclic AMP Response Element-Binding ProteinGene ExpressionGene Expression ProfilingRNA-Binding ProteinsMotor NeuronsNerve Tissue ProteinsCell NucleusGene Expression RegulationEmbryo, MammalianEmbryo, Nonmammalian