Previous experiments have shown the effect of USP9x on Mcl-1 in irradiated Jurkat lymphoma cells.9 Thus, we compared the protein levels of USP9x, Mcl-1 and several other Bcl-2 family members in Jurkat cells, four established (A172, Ln229, T98G, U373), and two primary (WKI, LKI) glioblastoma cell lines (Figure 2). Here, MCL1 is linked to glioblastoma.