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Mechanism of inhibiting type i interferon induction by hepatitis b virus x protein

文献类型:期刊论文

作者Jiang, Junyi1,2; Tang, Hong1
刊名Protein & cell
出版日期2010-12-01
卷号1期号:12页码:1106-1117
关键词Hepatitis b virus (hbv) Hbv x protein (hbx) Deubiquitination Type i interferon
ISSN号1674-800X
DOI10.1007/s13238-010-0141-8
通讯作者Tang, hong(tanghong@moon.ibp.ac.cn)
英文摘要Hepatitis b virus (hbv) is regarded as a stealth virus, invading and replicating efficiently in human liver undetected by host innate antiviral immunity. here, we show that type i interferon (ifn) induction but not its downstream signaling is blocked by hbv replication in hepg2.2.15 cells. this effect may be partially due to hbv x protein (hbx), which impairs ifn beta promoter activation by both sendai virus (sev) and components implicated in signaling by viral sensors. as a deubiquitinating enzyme (dub), hbx cleaves lys63-linked polyubiquitin chains from many proteins except tank-binding kinase 1 (tbk1). it binds and deconjugates retinoic acid-inducible gene i (rig i) and tnf receptor-associated factor 3 (traf3), causing their dissociation from the downstream adaptor cardif or tbk1 kinase. in addition to rig i and traf3, hbx also interacts with cardif, trif, nemo, tbk1, inhibitor of kappa light polypeptide gene enhancer in b-cells, kinase epsilon (ikki) and interferon regulatory factor 3 (irf3). our data indicate that multiple points of signaling pathways can be targeted by hbx to negatively regulate production of type i ifn.
WOS研究方向Cell Biology
WOS类目Cell Biology
语种英语
WOS记录号WOS:000208511900008
出版者HIGHER EDUCATION PRESS
URI标识http://www.irgrid.ac.cn/handle/1471x/2410690
专题中国科学院大学
通讯作者Tang, Hong
作者单位1.Chinese Acad Sci, Inst Biophys, Key Lab Infect & Immun, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Jiang, Junyi,Tang, Hong. Mechanism of inhibiting type i interferon induction by hepatitis b virus x protein[J]. Protein & cell,2010,1(12):1106-1117.
APA Jiang, Junyi,&Tang, Hong.(2010).Mechanism of inhibiting type i interferon induction by hepatitis b virus x protein.Protein & cell,1(12),1106-1117.
MLA Jiang, Junyi,et al."Mechanism of inhibiting type i interferon induction by hepatitis b virus x protein".Protein & cell 1.12(2010):1106-1117.

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来源:中国科学院大学

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