Several genes involved in synaptic vesicle fission and fusion, such as AP2M1 (MIM: 601024), DNM1 (MIM: 602377), STX1B (MIM: 601485), STXBP1 (MIM: 602926), SNAP25 (MIM: 600322), and VAMP2 (MIM: 185881), have been implicated in neurodevelopmental disorders (6–12). The gene discussed is DNM1; the disease is neurodevelopmental disorder.