MYH9 and listeriosis: Specifically, phosphorylation of the Y277/1805 residues favors the polymerization of NM-IIA dimers into bipolar filaments, which is essential for phagocytic engulfment, while Listeria monocytogenes infection triggers the phosphorylation of Y158 which affects the ability of MYH9 to bind to and/or hydrolyze ATP thus preventing bacterial dissemination (8, 32).