A stress-responsive system for mitochondrial protein degradation.
A stress-responsive system for mitochondrial protein degradation.
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DOI:
10.1016/j.molcel.2010.10.021
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发表时间:
2010-11-12
期刊:
影响因子:
16
通讯作者:
Rutter J
中科院分区:
文献类型:
--
作者:
Heo JM;Livnat-Levanon N;Taylor EB;Jones KT;Dephoure N;Ring J;Xie J;Brodsky JL;Madeo F;Gygi SP;Ashrafi K;Glickman MH;Rutter J
We show that Ydr049 (renamed VCP/ Cdc48-associated Mitochondrial Stress-responsive—Vms1), a member of an unstudied pan-eukaryotic protein family, translocates from the cytosol to mitochondria upon mitochondrial stress. Cells lacking Vms1 show progressive mitochondrial failure, hypersensitivity to oxidative stress and decreased chronological lifespan. Both yeast and mammalian Vms1 stably interact with Cdc48/ VCP/ p97, a component of the ubiquitin/ proteasome system with a well-defined role in endoplasmic reticulum-associated protein degradation (ERAD), wherein misfolded ER proteins are degraded in the cytosol. We show that oxidative stress triggers mitochondrial localization of Cdc48 and this is dependent on Vms1. When this system is impaired by mutation of Vms1, ubiquitin-dependent mitochondrial protein degradation, mitochondrial respiratory function and cell viability are compromised. We demonstrate that Vms1 is a required component of an evolutionarily conserved system for mitochondrial protein degradation, which is necessary to maintain mitochondrial, cellular and organismal viability.
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DOI:
10.1042/bj20091321
发表时间:
2010-01-27
期刊:
The Biochemical journal
影响因子:
--
作者:
Azzu V;Mookerjee SA;Brand MD
通讯作者:
Brand MD
影响因子:
14.9
作者:
Jensen LJ;Kuhn M;Stark M;Chaffron S;Creevey C;Muller J;Doerks T;Julien P;Roth A;Simonovic M;Bork P;von Mering C
通讯作者:
von Mering C
影响因子:
2.6
作者:
Elstner, Matthias;Andreoli, Christophe;Prokisch, Holger
通讯作者:
Prokisch, Holger
影响因子:
4.8
作者:
Braun, Ralf J.;Zischka, Hans;Ueffing, Marius
通讯作者:
Ueffing, Marius
影响因子:
56.9
作者:
Fabrizio, P;Pozza, F;Longo, VD
通讯作者:
Longo, VD