Involvement of mitochondrial dynamics in the segregation of mitochondrial matrix proteins during stationary phase mitophagy.
Involvement of mitochondrial dynamics in the segregation of mitochondrial matrix proteins during stationary phase mitophagy.
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DOI:
10.1038/ncomms3789
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发表时间:
2013
影响因子:
16.6
通讯作者:
Dengjel, Joern
中科院分区:
文献类型:
--
作者:
Abeliovich, Hagai;Zarei, Mostafa;Rigbolt, Kristoffer T. G.;Youle, Richard J.;Dengjel, Joern
Mitophagy, the autophagic degradation of mitochondria, is an important housekeeping function in eukaryotic cells and defects in mitophagy correlate with ageing phenomena and with several neurodegenerative disorders. A central mechanistic question regarding mitophagy is whether mitochondria are consumed en masse, or whether an active process segregates defective molecules from functional ones within the mitochondrial network, thus allowing a more efficient culling mechanism. Here, we combine a proteomic study with a molecular genetic and cell biology approach to determine whether such a segregation process occurs in yeast mitochondria. We find that different mitochondrial matrix proteins undergo mitophagic degradation at distinctly different rates, supporting the active segregation hypothesis. These differential degradation rates depend on mitochondrial dynamics, suggesting a mechanism coupling weak physical segregation with mitochondrial dynamics to achieve a distillation-like effect. In agreement, the rates of mitophagic degradation strongly correlate with the degree of physical segregation of specific matrix proteins.
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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
影响因子:
11.4
作者:
Abeliovich, H;Darsow, T;Emr, SD
通讯作者:
Emr, SD
影响因子:
21.3
作者:
Bleazard, W;McCaffery, JM;Shaw, JM
通讯作者:
Shaw, JM
DOI:
10.1083/jcb.201210111
发表时间:
2013-01-21
期刊:
The Journal of cell biology
影响因子:
--
作者:
Lazarou M;Narendra DP;Jin SM;Tekle E;Banerjee S;Youle RJ
通讯作者:
Youle RJ