Syndromes with epilepsy are caused by ADNP, ARID1A, CASR, CHD7, COL3A1, DGUOK, KCNK4, KMT2A, KMT2C, MECP2, NIPBL, PIGO, SETBP1 and UBE3A et al. (Supplementary Table S1). Here, PIGO is linked to epilepsy.