Looking into the DEG subnetwork, we found that some well-known ASD candidate genes, such as Kcnma1, Shank2, Cacna1a and Cacna1b, and epilepsy candidate genes, such as Scn3a, Grin2a, Gabrg2, and Grin2b, are hub genes in this subnetwork. The gene discussed is CACNA1A; the disease is epilepsy.