Oxidative protein folding in eukaryotes: mechanisms and consequences.
Oxidative protein folding in eukaryotes: mechanisms and consequences.
复制标题
真核生物中的氧化蛋白折叠:机制和后果。
DOI:
10.1083/jcb.200311055
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发表时间:
2004-02-02
期刊:
影响因子:
--
通讯作者:
Weissman JS
中科院分区:
文献类型:
--
作者:
Tu BP;Weissman JS
The endoplasmic reticulum (ER) provides an environment that is highly optimized for oxidative protein folding. Rather than relying on small molecule oxidants like glutathione, it is now clear that disulfide formation is driven by a protein relay involving Ero1, a novel conserved FAD-dependent enzyme, and protein disulfide isomerase (PDI); Ero1 is oxidized by molecular oxygen and in turn acts as a specific oxidant of PDI, which then directly oxidizes disulfide bonds in folding proteins. While providing a robust driving force for disulfide formation, the use of molecular oxygen as the terminal electron acceptor can lead to oxidative stress through the production of reactive oxygen species and oxidized glutathione. How Ero1p distinguishes between the many different PDI-related proteins and how the cell minimizes the effects of oxidative damage from Ero1 remain important open questions.
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