Importantly, duplications involving 3q25.31 (harboring AT-1/SLC33A1/AT-1) and 2p13.1 (harboring ATase1/NAT8B and ATase2/NAT8) are specifically associated with ASD and intellectual disability with dysmorphism (National Organization for Rare Disorders database at https://rarediseases.org/; see also [3–11]). This evidence concerns the gene NAT8B and Intellectual disability.