DYRK1A and Dravet syndrome: We therefore assessed Dyrk1A interaction with proteins extracted from Epstein–Barr virus‐transformed lymphoblastoid cell lines (LCLs) of healthy individuals and unrelated individuals with DS and investigated the effects of Dyrk1A overexpression on plasma fibronectin and fibrinogen, platelet number and half‐life, platelet receptors expression, platelet activation and bleeding in mice.