Academic Journal

Crimean-Congo Hemorrhagic Fever Virus Suppresses Innate Immune Responses via a Ubiquitin and ISG15 Specific Protease

التفاصيل البيبلوغرافية
العنوان: Crimean-Congo Hemorrhagic Fever Virus Suppresses Innate Immune Responses via a Ubiquitin and ISG15 Specific Protease
المؤلفون: Florine E.M. Scholte, Marko Zivcec, John V. Dzimianski, Michelle K. Deaton, Jessica R. Spengler, Stephen R. Welch, Stuart T. Nichol, Scott D. Pegan, Christina F. Spiropoulou, Éric Bergeron
المصدر: Cell Reports, Vol 20, Iss 10, Pp 2396-2407 (2017)
بيانات النشر: Elsevier, 2017.
سنة النشر: 2017
المجموعة: LCC:Biology (General)
مصطلحات موضوعية: Crimean-Congo hemorrhagic fever, Bunyavirus, interferon, ubiquitin, innate immunity, ubiquitin specific protease, interferon stimulated gene-15, virus replication, reverse genetics, Biology (General), QH301-705.5
الوصف: Antiviral responses are regulated by conjugation of ubiquitin (Ub) and interferon-stimulated gene 15 (ISG15) to proteins. Certain classes of viruses encode Ub- or ISG15-specific proteases belonging to the ovarian tumor (OTU) superfamily. Their activity is thought to suppress cellular immune responses, but studies demonstrating the function of viral OTU proteases during infection are lacking. Crimean-Congo hemorrhagic fever virus (CCHFV, family Nairoviridae) is a highly pathogenic human virus that encodes an OTU with both deubiquitinase and deISGylase activity as part of the viral RNA polymerase. We investigated CCHFV OTU function by inactivating protease catalytic activity or by selectively disrupting its deubiquitinase and deISGylase activity using reverse genetics. CCHFV OTU inactivation blocked viral replication independently of its RNA polymerase activity, while deubiquitinase activity proved critical for suppressing the interferon responses. Our findings provide insights into viral OTU functions and support the development of therapeutics and vaccines.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2211-1247
Relation: http://www.sciencedirect.com/science/article/pii/S2211124717311476; https://doaj.org/toc/2211-1247
DOI: 10.1016/j.celrep.2017.08.040
URL الوصول: https://doaj.org/article/2913f622b2624efda670531f1ee47f80
رقم الانضمام: edsdoj.2913f622b2624efda670531f1ee47f80
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:22111247
DOI:10.1016/j.celrep.2017.08.040