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Inhibition of interactions between Mcl-1 and proapoptotic proteins is considered to be a therapeutic strategy to induce apoptosis in cancer cells. Here, we adopted molecular dynamics simulation with molecular mechanics-Poisson Boltzmann/surface area method (MM-PB/SA) to study the inhibition mechanism of three Mcl-1 inhibitors, compounds 1, 2 and 3. Analysis(More)
By means of limited proteolysis assay, three-dimensional NMR, X-ray crystallography and alanine mutations, a dynamic region at the Q221R222N223 motif in the Bcl-2 homology 3 (BH3) domain of Mcl-1 has been identified as a conformational switch which controls Mcl-1 ubiquitination. NoxaBH3 binding biases the QRN motif toward a helical conformation, thus(More)
Based on a known selective Mcl-1 inhibitor, 6-chloro-3-(3-(4-chloro-3,5-dimethylphenoxy)propyl)-1H-indole-2-carboxylic acid, we applied a fragment-based approach to obtain new molecules that extended into the p1 pocket of the BH3 groove and then exhibited binding selectivity for the Mcl-1 over the Bcl-2 protein. After we deconstructed the(More)
No α-helical mimetic that exhibits Bcl-2/MDM2 dual inhibition has been rationally designed due to the different helicities of the α-helixes at their binding interfaces. Herein, we extracted a one-turn α-helix-mimicking ortho-triarene unit from o-phenylene foldamers. Linking benzamide substrates with a rotatable C-N bond, we constructed a novel semirigid(More)
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