MCL1 and cancer: Because the preformed BAK/MCL1 complexes correlated with cell death induced by both paclitaxel and the MCL1 inhibitor S63845 in ovarian cell lines, we analyzed the correlation between the IC50 of paclitaxel and the IC50 of MCL1 inhibitor AZD5991 or MIM1 from the Genomics of Drug Sensitivity in Cancer database.