Jiang et al[22] summarized that the haploinsufficiency of NIPA2 might be a candidate mechanism for child absence epilepsy/idiopathic generalized epilepsies phenotypes caused by 15q11.2 microdeletion.[12, 22] Maver et al[23] found that the loss of TUBGCP5 due to 15q11.2 microdeletion might be involved in the development of microcephaly. This evidence concerns the gene NIPA2 and idiopathic generalized epilepsy.