Finally, chromosomal duplications of the 3q25.31 locus, which harbors AT‐1/SLC33A1, have been reported in patients with autism spectrum disorder (ASD), intellectual disability, propensity to seizures, and facial dysmorphism (SFARI database; see also Swisshelm et al. 2014. The gene discussed is SLC33A1; the disease is Intellectual disability.