DCAF11 Supports Targeted Protein Degradation by Electrophilic Proteolysis-Targeting Chimeras.

DCAF11 Supports Targeted Protein Degradation by Electrophilic Proteolysis-Targeting Chimeras.
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DOI:
10.1021/jacs.1c00990
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发表时间:
2021-04-07
影响因子:
15
通讯作者:
Cravatt BF
Cravatt BF
中科院分区:
化学1区
文献类型:
--
作者:
Zhang X;Luukkonen LM;Eissler CL;Crowley VM;Yamashita Y;Schafroth MA;Kikuchi S;Weinstein DS;Symons KT;Nordin BE;Rodriguez JL;Wucherpfennig TG;Bauer LG;Dix MM;Stamos D;Kinsella TM;Simon GM;Baltgalvis KA;Cravatt BF

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Ligand-induced protein degradation has emerged as a compelling approach to promote the targeted elimination of proteins from cells by directing these proteins to the ubiquitin-proteasome machinery. So far, only a limited number of E3 ligases have been found to support ligand-induced protein degradation, reflecting a dearth of E3-binding compounds for proteolysis-targeting chimera (PROTAC) design. Here, we describe functional screening strategy performed with a focused library of candidate electrophilic PROTACs to discover bifunctional compounds that degrade proteins in human cells by covalently engaging E3 ligases. Mechanistic studies revealed that the electrophilic PROTACs act through modifying specific cysteines in DCAF11, a poorly characterized E3 ligase substrate adaptor. We further show that DCAF11-directed electrophilic PROTACs can degrade multiple endogenous proteins, including FBKP12 and the androgen receptor in human prostate cancer cells. Our findings designate DCAF11 as an E3 ligase capable of supporting ligand-induced protein degradation via electrophilic PROTACs.
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