https://www.sphkinhibitor.com/index.php/2016/08/25/the-binding-of-dsdna-was-especially-distinct-for-catalytically-defective-a3ae72a-which-indicates-that-substitution-of-glu72-with-ala-regardless-of-the-drop-of-the-deaminase-activity-does-not-have-an/