Distal Spinal Muscular Atrophy 2, also known as autosomal recessive distal spinal muscular atrophy 2, is related to neuronopathy, distal hereditary motor, autosomal recessive 2 and distal hereditary motor neuronopathy type 2. An important gene associated with Distal Spinal Muscular Atrophy 2 is SIGMAR1 (Sigma Non-Opioid Intracellular Receptor 1).