Chromosome 15q13.3 Deletion Syndrome, also known as chromosome 15q13.3 microdeletion syndrome, is related to epilepsy, idiopathic generalized and autism. An important gene associated with Chromosome 15q13.3 Deletion Syndrome is DEL15Q13.3 (Chromosome 15q13.3 Microdeletion Syndrome), and among its related pathways/superpathways are 15q11q13 copy number variation and Prader-Willi and Angelman syndrome. Affiliated tissues include heart and brain, and related phenotypes are intellectual disability and global developmental delay