Fourth, the candidate genes newly implicated in CAS were frequently associated with other neurodevelopmental disorders, such as epilepsy (e.g. GNAO1, GNB1, SETD1A) and/or intellectual disability (e.g. CDK13, CHD3, DDX3X, POGZ, SETBP1) [4, 5]. The gene discussed is DDX3X; the disease is Intellectual disability.