Journal
VIRUS RESEARCH
Volume 202, Issue -, Pages 89-100Publisher
ELSEVIER
DOI: 10.1016/j.virusres.2014.11.019
Keywords
RNA viruses; Coronavirus; Nsp1; Translation inhibition; mRNA cleavage; SARS
Categories
Funding
- National Institute of Health [AI72493, AI99107]
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The recent emergence of two highly pathogenic human coronaviruses (CoVs), severe acute respiratory syndrome CoV and Middle East respiratory syndrome CoV, has ignited a strong interest in the identification of viral factors that determine the virulence and pathogenesis of CoVs. The nonstructural protein 1 (nsp1) of CoVs has attracted considerable attention in this regard as a potential virulence factor and a target for Coy vaccine development because of accumulating evidence that point to its role in the down-regulation of host innate immune responses to Coy infection. Studies have revealed both functional conservation and mechanistic divergence among the nsp1 of different mammalian CoVs in perturbing host gene expression and antiviral responses. This review summarizes the current knowledge about the biological functions of Coy nsp1 that provides an insight into the novel strategies utilized by this viral protein to modulate host and viral gene expression during CoV infection. (C) 2014 Elsevier B.V. All rights reserved.
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