Translation control of Enterovirus A71 gene expression

Ming Chih Lai, Han Hsiang Chen, Peng Xu, Robert Y.L. Wang*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

9 Scopus citations

Abstract

Upon EV-A71 infection of a host cell, EV-A71 RNA is translated into a viral polyprotein. Although EV-A71 can use the cellular translation machinery to produce viral proteins, unlike cellular translation, which is cap-dependent, the viral RNA genome of EV-A71 does not contain a 5′ cap and the translation of EV-A71 protein is cap-independent, which is mediated by the internal ribosomal entry site (IRES) located in the 5′ UTR of EV-A71 mRNA. Like many other eukaryotic viruses, EV-A71 manipulates the host cell translation devices, using an elegant RNA-centric strategy in infected cells. During viral translation, viral RNA plays an important role in controlling the stage of protein synthesis. In addition, due to the cellular defense mechanism, viral replication is limited by down-regulating translation. EV-A71 also utilizes protein factors in the host to overcome antiviral responses or even use them to promote viral translation rather than host cell translation. In this review, we provide an introduction to the known strategies for EV-A71 to exploit cellular translation mechanisms.

Original languageEnglish
Article number22
JournalJournal of Biomedical Science
Volume27
Issue number1
DOIs
StatePublished - 08 01 2020

Bibliographical note

Publisher Copyright:
© 2020 The Author(s).

Keywords

  • Enterovirus A71
  • Gene expression
  • Host factors
  • Translational control

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