Epidithiodiketopiperazines Inhibit Protein Degradation by Targeting Proteasome Deubiquitinase Rpn11.
Epidithiodiketopiperazines Inhibit Protein Degradation by Targeting Proteasome Deubiquitinase Rpn11.
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桥二硫二酮哌嗪通过靶向蛋白酶体去泛素酶 Rpn11 抑制蛋白质降解。
DOI:
10.1016/j.chembiol.2018.07.012
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发表时间:
2018-11-15
影响因子:
8.6
通讯作者:
Deshaies RJ
中科院分区:
文献类型:
--
作者:
Li J;Zhang Y;Da Silva Sil Dos Santos B;Wang F;Ma Y;Perez C;Yang Y;Peng J;Cohen SM;Chou TF;Hilton ST;Deshaies RJ
The 26S proteasome is the major proteolytic machine for breaking down cytosolic and nuclear proteins in eukaryotes. Due to the lack of a suitable assay, it is difficult to measure routinely and quantitatively, the breakdown of proteins by the 26S proteasome in vitro. In the present study, we developed an assay to monitor proteasome-mediated protein degradation. Using this assay, we discovered that epipolythiodioxopiperazines (ETPs) blocked the degradation of our model substrate in vitro. Further characterization revealed that ETPs inhibited proteasome function by targeting the essential proteasomal deubiquitinase Rpn11. ETPs also inhibited other JAMM proteases such as Csn5 and AMSH. An improved ETP with less non-specific effects, SOP11, stabilized a subset of proteasome substrates in cells, induced the unfolded protein response, and led to cell death. SOP11 represents a class of Rpn11 inhibitor and provides an alternative route to develop proteasome inhibitors.
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DOI:
10.1074/jbc.m110.215319
发表时间:
2011-05-13
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Chou TF;Deshaies RJ
通讯作者:
Deshaies RJ
DOI:
10.1083/jcb.201110093
发表时间:
2012-03-05
期刊:
The Journal of cell biology
影响因子:
--
作者:
Hipp MS;Patel CN;Bersuker K;Riley BE;Kaiser SE;Shaler TA;Brandeis M;Kopito RR
通讯作者:
Kopito RR
影响因子:
11.4
作者:
Cooper, Eric M.;Cutcliffe, Colleen;Cohen, Robert E.
通讯作者:
Cohen, Robert E.
影响因子:
4.7
作者:
Diaz-Hernandez, Miguel;Valera, Adriana G.;Lucas, Jose J.
通讯作者:
Lucas, Jose J.
影响因子:
16.6
作者:
Finley D
通讯作者:
Finley D