Unanchored K48-linked polyubiquitin synthesized by the E3-ubiquitin ligase TRIM6 stimulates the interferon-IKKε kinase-mediated antiviral response.
Unanchored K48-linked polyubiquitin synthesized by the E3-ubiquitin ligase TRIM6 stimulates the interferon-IKKε kinase-mediated antiviral response.
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DOI:
10.1016/j.immuni.2014.04.018
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发表时间:
2014-06-19
期刊:
影响因子:
32.4
通讯作者:
Garcia-Sastre, Adolfo
中科院分区:
文献类型:
--
作者:
Rajsbaum, Ricardo;Versteeg, Gijs A.;Schmid, Sonja;Maestre, Ana M.;Belicha-Villanueva, Alan;Martinez-Romero, Carles;Patel, Jenish R.;Morrison, Juliet;Pisanelli, Giuseppe;Miorin, Lisa;Laurent-Rolle, Maudry;Moulton, Hong M.;Stein, David A.;Fernandez-Sesma, Ana;tenOever, Benjamin R.;Garcia-Sastre, Adolfo
Type-I interferons (IFN-I) are essential antiviral cytokines produced upon microbial infection. IFN-I elicits this activity through the upregulation of hundreds of IFN-I stimulated genes (ISGs). The full breadth of ISG induction demands activation of a number of cellular factors including the IκB kinase epsilon (IKKε). However, the mechanism of IKKε activation upon IFN receptor signaling has remained elusive. Here we show that TRIM6, a member of the E3-ubiquitin ligase tripartite motif (TRIM) family of proteins, interacts with IKKε and promotes induction of IKKε-dependent ISGs. TRIM6 and the E2-ubiquitin conjugase UbE2K cooperate in the synthesis of unanchored K48-linked poly-ubiquitin chains, which activate IKKε for subsequent STAT1 phosphorylation. Our work attributes a previously unrecognized activating role of K48-linked unanchored poly-ubiquitin chains in kinase activation and identifies the UbE2K-TRIM6-ubiquitin axis as critical for IFN signaling and antiviral response.
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影响因子:
5.6
作者:
Rajsbaum, Ricardo;Garcia-Sastre, Adolfo;Versteeg, Gijs A.
通讯作者:
Versteeg, Gijs A.
影响因子:
56.9
作者:
tenOever, Benjamin R.;ng, Sze-Li Ng;Maniatis, Tom
通讯作者:
Maniatis, Tom
影响因子:
7.7
作者:
Friedman, Constantin S.;O'Donnell, Marie Anne;Ting, Adrian T.
通讯作者:
Ting, Adrian T.
DOI:
10.1073/pnas.1119137109
发表时间:
2011-12-27
影响因子:
11.1
作者:
Ng, Sze-Ling;Friedman, Brad A.;Maniatis, Tom
通讯作者:
Maniatis, Tom
影响因子:
30.5
作者:
Kawai, T;Takahashi, K;Akira, S
通讯作者:
Akira, S