Active site alanine mutations convert deubiquitinases into high-affinity ubiquitin-binding proteins.
Active site alanine mutations convert deubiquitinases into high-affinity ubiquitin-binding proteins.
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DOI:
10.15252/embr.201745680
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发表时间:
2018-10
期刊:
影响因子:
7.7
通讯作者:
Wolberger C
中科院分区:
文献类型:
--
作者:
Morrow ME;Morgan MT;Clerici M;Growkova K;Yan M;Komander D;Sixma TK;Simicek M;Wolberger C
A common strategy for exploring the biological roles of deubiquitinating enzymes (DUBs) in different pathways is to study the effects of replacing the wild‐type DUB with a catalytically inactive mutant in cells. We report here that a commonly studied DUB mutation, in which the catalytic cysteine is replaced with alanine, can dramatically increase the affinity of some DUBs for ubiquitin. Overexpression of these tight‐binding mutants thus has the potential to sequester cellular pools of monoubiquitin and ubiquitin chains. As a result, cells expressing these mutants may display unpredictable dominant negative physiological effects that are not related to loss of DUB activity. The structure of the SAGA DUB module bound to free ubiquitin reveals the structural basis for the 30‐fold higher affinity of Ubp8C146A for ubiquitin. We show that an alternative option, substituting the active site cysteine with arginine, can inactivate DUBs while also decreasing the affinity for ubiquitin.
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DOI:
10.1038/nrd.2017.152
发表时间:
2018-01
期刊:
Nature reviews. Drug discovery
影响因子:
--
作者:
Harrigan JA;Jacq X;Martin NM;Jackson SP
通讯作者:
Jackson SP
影响因子:
16
作者:
Kwasna D;Abdul Rehman SA;Natarajan J;Matthews S;Madden R;De Cesare V;Weidlich S;Virdee S;Ahel I;Gibbs-Seymour I;Kulathu Y
通讯作者:
Kulathu Y
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
3.9
作者:
Lee, Kenneth K.;Swanson, Selene K.;Workman, Jerry L.
通讯作者:
Workman, Jerry L.
影响因子:
4
作者:
Clague, Michael J.;Coulson, Judy M.;Urbe, Sylvie
通讯作者:
Urbe, Sylvie