- Chk2*1100delC Acts in synergy with the Ron receptor tyrosine kinase to accelerate mammary tumorigenesis in mice. Meyer, S.E., Peace, B.E., Bahassi, E.M., Kavanaugh, G.M., Wagh, P.K., Robbins, S.B., Yin, M., Wells, S.I., Zinser, G.M., Stambrook, P.J., Waltz, S.E. Cancer Lett. (2010)