Epileptic encephalopathy: SLC25A12 OMIM 612949 (Wibom et al., 2009; Falk et al., 2014); SLC25A22 OMIM 609304 (Molinari et al., 2005; Molinari et al., 2009; Poduri et al., 2013); SLC25A42 (Almannai et al., 2018). The gene discussed is SLC25A22; the disease is Epileptic encephalopathy.