SYNGAP1 and neurodevelopmental disorder: The results of WES led to the identification of 10 new genes that cause an AS-like phenotype (SYNGAP1, VAMP2, TBL1XR1, ASXL3, SATB2, SMARCE1, SPTAN1, KCNQ3, SLC6A1 and LAS1L), all of them previously associated with other neurodevelopmental disorders.