Receptor-mediated mitophagy in yeast and mammalian systems.
Receptor-mediated mitophagy in yeast and mammalian systems.
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Mitophagy, or mitochondria autophagy, plays a critical role in selective removal of damaged or unwanted mitochondria. Several protein receptors, including Atg32 in yeast, NIX/BNIP3L, BNIP3 and FUNDC1 in mammalian systems, directly act in mitophagy. Atg32 interacts with Atg8 and Atg11 on the surface of mitochondria, promoting core Atg protein assembly for mitophagy. NIX/BNIP3L, BNIP3 and FUNDC1 also have a classic motif to directly bind LC3 (Atg8 homolog in mammals) for activation of mitophagy. Recent studies have shown that receptor-mediated mitophagy is regulated by reversible protein phosphorylation. Casein kinase 2 (CK2) phosphorylates Atg32 and activates mitophagy in yeast. In contrast, in mammalian cells Src kinase and CK2 phosphorylate FUNDC1 to prevent mitophagy. Notably, in response to hypoxia and FCCP treatment, the mitochondrial phosphatase PGAM5 dephosphorylates FUNDC1 to activate mitophagy. Here, we mainly focus on recent advances in our understanding of the molecular mechanisms underlying the activation of receptor-mediated mitophagy and the implications of this catabolic process in health and disease.
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影响因子:
21.3
作者:
通讯作者:
--
DOI:
10.1083/jcb.201008084
发表时间:
2010-11-29
期刊:
The Journal of cell biology
影响因子:
--
作者:
Jin SM;Lazarou M;Wang C;Kane LA;Narendra DP;Youle RJ
通讯作者:
Youle RJ
DOI:
10.1084/jem.186.12.1975
发表时间:
1997-12-15
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Chen G;Ray R;Dubik D;Shi L;Cizeau J;Bleackley RC;Saxena S;Gietz RD;Greenberg AH
通讯作者:
Greenberg AH
影响因子:
4.8
作者:
Cheng, Victor W. T.;Ma, Elysia;Weiner, Joel H.
通讯作者:
Weiner, Joel H.
影响因子:
16
作者:
Chen, Guo;Han, Zhe;Chen, Quan
通讯作者:
Chen, Quan