KCNQ2 and developmental and epileptic encephalopathy: Pathogenic variants in the KCNQ2 (HGNC:6296) and KCNQ3 (HGNC:6297) genes were initially associated with self-limited neonatal epilepsy (previously known as benign neonatal epilepsy) (Biervert et al., 1998; Singh et al., 2003; Zuberi et al., 2022) and later with early-onset developmental and epileptic encephalopathy with burst suppression pattern on EEG (previously known as Ohtahara syndrome) (Weckhuysen et al., 2012; Zuberi et al., 2022).