Overexpression of YAP1 wild-type (YAP1-HA), unphosphorylated YAP1 (YAP1(S127A)-HA) or truncated YAP1 (YAP1ΔC-HA and YAP1-MAMLD1ΔNLS) did not lead to tumor formation. The gene discussed is YAP1; the disease is neoplasm.