Fig. 2. MCL1 binds specifically to P18 through C-terminal rBH3.
a Western blot of endogenous coIP of MCL1 (IP) with P18 (IB), BAX (IB), and P18 (IB) in WAC2. b Western blot of in vitro pulldown of recombinant proteins (IP), ANK1–4, ANK4–5, P18, p16, and chimera, with recombinant MCL1 (rMCL1) (IB). Cartoon of the p16, P18, and chimera proteins are shown below the blot. rBH3-containing helix is highlighted in yellow (Residues: 150–161). c Western blot of in vitro pulldown of recombinant P18 (IP) with rMCL1 (IB) with and without MCL1 inhibitor S63845.