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Conventional and unconventional mechanisms for capping viral mRNA

Open access
Decroly, Etienne, Ferron, François, Lescar, Julien, Canard, Bruno·2012·Nature Reviews Microbiology

Abstract

In the eukaryotic cell, capping of mRNA 5′ ends is an essential structural modification that allows efficient mRNA translation, directs pre-mRNA splicing and mRNA export from the nucleus, limits mRNA degradation by cellular 5′–3′ exonucleases and allows recognition of foreign RNAs (including viral transcripts) as 'non-self'. However, viruses have evolved mechanisms to protect their RNA 5′ ends with either a covalently attached peptide or a cap moiety (7-methyl-Gppp, in which p is a phosphate group) that is indistinguishable from cellular mRNA cap structures. Viral RNA caps can be stolen from cellular mRNAs or synthesized using either a host- or virus-encoded capping apparatus, and these capping assemblies exhibit a wide diversity in organization, structure and mechanism. Here, we review the strategies used by viruses of eukaryotic cells to produce functional mRNA 5′-caps and escape innate immunity.

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Metadata

Authors
Decroly, E., Ferron, F., Lescar, J., & Canard, B.
Venue
Nature Reviews Microbiology
Published
2011-12-05
Volume
10
Issue
1
Pages
51-65
ISSN
  • 1740-1526 (ISSN-L)
  • 1740-1534
OpenAlex
W1980892321
Cited by
490
References
3
FWCI
1.01
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Conventional and unconventional mechanisms for capping viral mRNA. https://app.cochat.ai/papers/10.1038/nrmicro2675
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Decroly, E., Ferron, F., Lescar, J., & Canard, B. (2012). Conventional and unconventional mechanisms for capping viral mRNA. Nature Reviews Microbiology. https://doi.org/10.1038/nrmicro2675

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