Neuronal Apoptosis-Inhibitory ProteinNeuronal Calcium-Sensor ProteinsSpinal Muscular Atrophies of ChildhoodMuscular Atrophy, SpinalSMN Complex ProteinsSurvival of Motor Neuron 1 ProteinX-Linked Inhibitor of Apoptosis ProteinInhibitor of Apoptosis ProteinsNerve Tissue ProteinsGene DeletionApoptosisCyclic AMP Response Element-Binding ProteinCaspasesCaspase 3Apoptosis Regulatory ProteinsCASP8 and FADD-Like Apoptosis Regulating ProteinNeuronsCaspase InhibitorsProto-Oncogene Proteins c-bcl-2In Situ Nick-End LabelingCaspase 9Cells, CulturedSignal Transductionbcl-2-Associated X ProteinCell Line, TumorCell SurvivalCaspase 8DNA FragmentationEnzyme Activation