Spinal Muscular Atrophy with Progressive Myoclonic Epilepsy, also known as jankovic-rivera syndrome, is related to spinal muscular atrophy and muscular atrophy, and has symptoms including muscular fasciculation, myoclonus and seizures. An important gene associated with Spinal Muscular Atrophy with Progressive Myoclonic Epilepsy is ASAH1 (N-Acylsphingosine Amidohydrolase 1), and among its related pathways/superpathways are Metabolism and Sphingolipid metabolism. Affiliated tissues include spinal cord and brain, and related phenotypes are seizure and myoclonus