Viability of BRAF-mutant cutaneous melanoma cells (SK-Mel19 and SK-Mel29) was assayed after 4 days of exposure to increasing doses of JQ1 treatments....The cell lines SK-Mel19 and SK-Mel29, carrying BRAFV600E mutation, showed sensitivity to JQ1 in viability assays (Figure (Figure5A)5A) similar to UM Gnaq-mutant cells, with IC50 of 125–500 nM.