Signaling at the gate: Phosphorylation of the mitochondrial protein import machinery

Signaling at the gate: Phosphorylation of the mitochondrial protein import machinery
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门口信号传导:线粒体蛋白质输入机制的磷酸化

DOI:
10.4161/cc.10.13.16054
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发表时间:
2011
期刊:
影响因子:
4.3
通讯作者:
O. Schmidt
O. Schmidt
中科院分区:
生物学3区
文献类型:
--
作者:
Sanjana Rao;Carolin Gerbeth;A. Harbauer;Despina Mikropoulou;C. Meisinger;O. Schmidt

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蛋白质输入线粒体是每个真核生物的一个重要过程。虽然进口机械的大部分部件已经被识别出来,并且在机械上也得到了很好的理解,但这一过程的监管在过去一直是一个很大程度上被忽视的研究领域。最近,我们首次证明线粒体外膜(TOM)的转位酶被几种胞质蛋白激酶磷酸化和调节。其中,酪蛋白激酶 2 (CK2) 控制 TOM 复合物的组装,而蛋白激酶 A (PKA) 控制转位酶功能。在这里,我们概述了当前的蛋白质输入调节模型,以及 CK2 和 PKA 的其他线粒体功能。我们还反映了模型生物面包酵母中线粒体相关蛋白激酶和磷酸酶的数据。
Protein import into mitochondria is an essential process in every eukaryotic organism. While most of the components of the import machinery have been identified and are mechanistically quite well understood, regulation of this process had been a largely neglected area of research in the past. Recently, we demonstrated for the first time that the translocase of the outer mitochondrial membrane (TOM) is phosphorylated and regulated by several cytosolic protein kinases. Among these, casein kinase 2 (CK2) governs the assembly of TOM complexes, while protein kinase A (PKA) controls translocase function. Here, we outline the current model of protein import regulation, together with additional mitochondrial functions of CK2 and PKA. We also reflect the data on mitochondria-associated protein kinases and phosphatases in the model organism baker's yeast.
DOI: 10.1016/j.cell.2010.12.015
发表时间: 2011-01-21
期刊: CELL
影响因子: 64.5
作者:
Schmidt, Oliver;Harbauer, Angelika B.;Meisinger, Chris
通讯作者: Meisinger, Chris
将蛋白质导入线粒体。
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期刊: Philosophical transactions of the Royal Society of London. Series B, Biological sciences
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