CERT1 and Intellectual disability: The phosphoregulatory aspect of CERT has recently attracted attention because specific missense mutations in the CERT-encoding gene, CERT1 (also known as COL4A3BP, CERT, and STARD11), in the human genome, were found to be associated with intellectual disabilities and mental development disorders with dominant inheritance [44,45,46,47,48], and some of these mutations were demonstrated to compromise the functional repression of CERT [48,49].