- Mutations in PTPN11 implicate the SHP-2 phosphatase in leukemogenesis. Loh, M.L., Vattikuti, S., Schubbert, S., Reynolds, M.G., Carlson, E., Lieuw, K.H., Cheng, J.W., Lee, C.M., Stokoe, D., Bonifas, J.M., Curtiss, N.P., Gotlib, J., Meshinchi, S., Le Beau, M.M., Emanuel, P.D., Shannon, K.M. Blood (2004)