6p3p
Crystal structure of Mcl-1 in complex with compound 65
Structural highlights
FunctionMCL1_HUMAN Involved in the regulation of apoptosis versus cell survival, and in the maintenance of viability but not of proliferation. Mediates its effects by interactions with a number of other regulators of apoptosis. Isoform 1 inhibits apoptosis. Isoform 2 promotes apoptosis.[1] Publication Abstract from PubMedMcl-1 is an anti-apoptotic protein overexpressed in hematological malignancies and several human solid tumors. Small molecule inhibition of Mcl-1 would offer an effective therapy to Mcl-1 mediated resistance. Subsequently, it has been the target of extensive research in the pharmaceutical industry. The discovery of a novel class of Mcl-1 small molecule inhibitors is described beginning with a simple biaryl sulfonamide hit derived from a high through put screen. A medicinal chemistry effort aided by SBDD generated compounds capable of disrupting the Mcl-1/Bid protein-protein interaction in vitro. The crystal structure of the Mcl-1 bound ligand represents a unique binding mode to the BH3 binding pocket where binding affinity is achieved, in part, through a sulfonamide oxygen/Arg263 interaction. The work highlights the some of the key challenges in designing effective protein-protein inhibitors for the Bcl-2 class of proteins. Discovery of novel biaryl sulfonamide based Mcl-1 inhibitors.,Follows B, Fessler S, Baumeister T, Campbell AM, Zablocki MM, Li H, Gotur D, Wang Z, Zheng X, Molz L, Nguyen C, Herbertz T, Wang L, Bair K Bioorg Med Chem Lett. 2019 Jun 11. pii: S0960-894X(19)30375-0. doi:, 10.1016/j.bmcl.2019.06.008. PMID:31235261[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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