Broad activation of the ubiquitin-proteasome system by Parkin is critical for mitophagy.
Broad activation of the ubiquitin-proteasome system by Parkin is critical for mitophagy.
复制标题
Parkin对泛素 - 蛋白酶体系统的广泛激活对于线粒体至关重要。
DOI:
10.1093/hmg/ddr048
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发表时间:
2011-05-01
影响因子:
3.5
通讯作者:
Chan DC
中科院分区:
文献类型:
--
作者:
Chan NC;Salazar AM;Pham AH;Sweredoski MJ;Kolawa NJ;Graham RL;Hess S;Chan DC
Parkin, an E3 ubiquitin ligase implicated in Parkinson's disease, promotes degradation of dysfunctional mitochondria by autophagy. Using proteomic and cellular approaches, we show that upon translocation to mitochondria, Parkin activates the ubiquitin–proteasome system (UPS) for widespread degradation of outer membrane proteins. This is evidenced by an increase in K48-linked polyubiquitin on mitochondria, recruitment of the 26S proteasome and rapid degradation of multiple outer membrane proteins. The degradation of proteins by the UPS occurs independently of the autophagy pathway, and inhibition of the 26S proteasome completely abrogates Parkin-mediated mitophagy in HeLa, SH-SY5Y and mouse cells. Although the mitofusins Mfn1 and Mfn2 are rapid degradation targets of Parkin, we find that degradation of additional targets is essential for mitophagy. These results indicate that remodeling of the mitochondrial outer membrane proteome is important for mitophagy, and reveal a causal link between the UPS and autophagy, the major pathways for degradation of intracellular substrates.
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影响因子:
13.3
作者:
Narendra, Derek P.;Kane, Lesley A.;Youle, Richard J.
通讯作者:
Youle, Richard J.
DOI:
10.1083/jcb.200211046
发表时间:
2003-01-20
期刊:
The Journal of cell biology
影响因子:
--
作者:
Chen H;Detmer SA;Ewald AJ;Griffin EE;Fraser SE;Chan DC
通讯作者:
Chan DC
DOI:
10.1083/jcb.200910140
发表时间:
2010-04-19
期刊:
The Journal of cell biology
影响因子:
--
作者:
Matsuda N;Sato S;Shiba K;Okatsu K;Saisho K;Gautier CA;Sou YS;Saiki S;Kawajiri S;Sato F;Kimura M;Komatsu M;Hattori N;Tanaka K
通讯作者:
Tanaka K
影响因子:
13.3
作者:
Narendra, Derek;Tanaka, Atsushi;Youle, Richard J.
通讯作者:
Youle, Richard J.
影响因子:
64.5
作者:
Pagliarini DJ;Calvo SE;Chang B;Sheth SA;Vafai SB;Ong SE;Walford GA;Sugiana C;Boneh A;Chen WK;Hill DE;Vidal M;Evans JG;Thorburn DR;Carr SA;Mootha VK
通讯作者:
Mootha VK