G Cell viability assay of mock or YAP5SA retrovirus transfected resistant melanoma cells. Cells were transfected with indicated retrovirus for 24 hr, and then treated with 2 μM of PLX4032 alone or in combination with either cytochalasin D (200 nM) or blebbistatin (50 μM). Relative cell viability was analyzed by CCK8 assay after drug treatment for 72 hr. 