Role of PINK1 binding to the TOM complex and alternate intracellular membranes in recruitment and activation of the E3 ligase Parkin.
Role of PINK1 binding to the TOM complex and alternate intracellular membranes in recruitment and activation of the E3 ligase Parkin.
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DOI:
10.1016/j.devcel.2011.12.014
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发表时间:
2012-02-14
影响因子:
11.8
通讯作者:
Youle, Richard J.
中科院分区:
文献类型:
--
作者:
Lazarou, Michael;Jin, Seok Min;Kane, Lesley A.;Youle, Richard J.
Mutations in the mitochondrial kinase PINK1 and the cytosolic E3 ligase Parkin can cause Parkinson’s disease. Damaged mitochondria accumulate PINK1 on the outer membrane where, dependent on kinase activity, it recruits and activates Parkin to induce mitophagy, potentially maintaining organelle fidelity. How PINK1 recruits Parkin is unknown. We show that endogenous PINK1 forms a 700 kDa complex with the translocase of the outer membrane (TOM) selectively on depolarized mitochondria whereas PINK1 ectopically targeted to the outer membrane retains association with TOM on polarized mitochondria. Inducibly targeting PINK1 to peroxisomes or lysosomes, which lack a TOM complex, recruits Parkin and activates ubiquitin ligase activity on the respective organelles. Once there, Parkin induces organelle selective autophagy of peroxisomes but not lysosomes. We propose that the association of PINK1 with the TOM complex allows rapid re-import of PINK1 to rescue repolarized mitochondria from mitophagy, and discount mitochondrial-specific factors for Parkin translocation and activation.
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作者:
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DOI:
10.1083/jcb.201008084
发表时间:
2010-11-29
期刊:
The Journal of cell biology
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发表时间:
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影响因子:
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通讯作者:
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DOI:
10.1083/jcb.200910140
发表时间:
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期刊:
The Journal of cell biology
影响因子:
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