GRIN2B and neurodevelopmental disorder: Additional sequencing of GRIN2B in individuals with ID and other neurodevelopmental disorders has identified a large number of disease-associated GRIN2B variants (Endele et al., 2010; Myers et al., 2011; Tarabeux et al., 2011; Talkowski et al., 2012; Yoo et al., 2012; Kenny et al., 2014; Lemke et al., 2014; Pan et al., 2015; Swanger et al., 2016; Takasaki et al., 2016; Platzer et al., 2017).