MAP4K4 and myasthenia gravis: However, when we simultaneously knocked down MAP4K4, MAP4K6 and MAP4K7 in MG, we observed a ~ 50% decrease of YAP phosphorylation (Supplementary Fig. 1e, f [p = 0.0004]) as well as an increase of YAP nuclear translocation (Supplementary Fig. 1g, h [p = 0.0015], i [p = 0.0019]).