SCN1A and Dravet syndrome: Conversely, impaired rotarod activity and spontaneous alternations were reported in DS mice with deletion of the last Scn1a exon, as well as in DS mice carrying the Scn1a A1783V missense mutations; both on the pure C57BL/6J background (Fadila et al., 2020; Beretta et al., 2022; Table 1).