6b4u | pdb_00006b4u
Crystal structure of MCL-1 in complex with a BIM competitive inhibitor
Structural highlights
Function[MCL1_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 PubMedMyeloid cell leukemia 1 (MCL-1) is a BCL-2 family protein that has been implicated in the progression and survival of multiple tumor types. Herein we report a series of MCL-1 inhibitors that emanated from a high throughput screening (HTS) hit and progressed via iterative cycles of structure-guided design. Advanced compounds from this series exhibited subnanomolar affinity for MCL-1 and excellent selectivity over other BCL-2 family proteins as well as multiple kinases and GPCRs. In a MCL-1 dependent human tumor cell line, administration of compound 30b rapidly induced caspase activation with associated loss in cell viability. The small molecules described herein thus comprise effective tools for studying MCL-1 biology. Structure-guided design of a series of MCL-1 inhibitors with high affinity and selectivity.,Bruncko M, Wang L, Sheppard GS, Phillips DC, Tahir SK, Xue J, Erickson S, Fidanze S, Fry E, Hasvold L, Jenkins GJ, Jin S, Judge RA, Kovar PJ, Madar D, Nimmer P, Park C, Petros AM, Rosenberg SH, Smith ML, Song X, Sun C, Tao ZF, Wang X, Xiao Y, Zhang H, Tse C, Leverson JD, Elmore SW, Souers AJ J Med Chem. 2015 Mar 12;58(5):2180-94. doi: 10.1021/jm501258m. Epub 2015 Feb 26. PMID:25679114[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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