PPM1B negatively regulates antiviral response via dephosphorylating TBK1.
PPM1B negatively regulates antiviral response via dephosphorylating TBK1.
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DOI:
10.1016/j.cellsig.2012.06.017
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发表时间:
2012-11
影响因子:
4.8
通讯作者:
Yang J
中科院分区:
文献类型:
--
作者:
Zhao Y;Liang L;Fan Y;Sun S;An L;Shi Z;Cheng J;Jia W;Sun W;Mori-Akiyama Y;Zhang H;Fu S;Yang J
The production of type I interferon must be tightly regulated and aberrant production of type I interferon is harmful or even fatal to the host. TBK1 phosphorylation at Ser172 plays an essential role in TBK1-mediated antiviral response. However, how TBK1 activity is negatively regulated remains poorly understood. Using a functional genomics approach, we have identified PPM1B as a TBK1 phosphatase. PPM1B dephosphorylates TBK1 in vivo and in vitro. PPM1B wild-type but not its phosphatase-deficient R179G mutant inhibits TBK1-mediated antiviral response and facilitates VSV replication in the cells. Viral infection induces association of PPM1B with TBK1 in a transient fashion in the cells. Conversely, suppression of PPM1B expression enhances virus-induced IRF3 phosphorylation and IFNβ production. Our study identifies a previously unrecognized role for PPM1B in the negative regulation of antiviral response by acting as a TBK1 phosphatase.
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影响因子:
32.4
作者:
Lei, Cao-Qi;Zhong, Bo;Shu, Hong-Bing
通讯作者:
Shu, Hong-Bing
影响因子:
64.8
作者:
Meylan, E;Curran, J;Tschopp, R
通讯作者:
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作者:
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DOI:
10.3390/v3060906
发表时间:
2011-06
期刊:
Viruses
影响因子:
--
作者:
Ireton RC;Gale M Jr
通讯作者:
Gale M Jr
影响因子:
3.5
作者:
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通讯作者:
Tincani, Angela