GRIN2A and epilepsy: GRIN2A mutations have been found in patients with epilepsy-aphasia spectrum disorders (Carvill et al., 2013; Lemke et al., 2013; Lesca et al., 2013; Gao et al., 2017), early-onset epileptic encephalopathy (Endele et al., 2010; Pierson et al., 2014; Yuan et al., 2014; Swanger et al., 2016) and schizophrenia (Tarabeux et al., 2011).