Patients with ADHD-resembling phenotype carried the following GRIN2B mutations: t(9;12)(p23;p13), t(10;12)(p21;p13), (p.R682C) in ABD, (p.A636P) in M3 domain and (p.T268SfsX15) in ATD [94,95]. The gene discussed is GRIN2B; the disease is attention deficit-hyperactivity disorder.