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Cells 2014, 3(2), 386-417;

The Ubiquitin-Conjugating System: Multiple Roles in Viral Replication and Infection

Department of Molecular Medicine, University of Padova, via Gabelli 63, Padova 35121, Italy
Author to whom correspondence should be addressed.
Received: 15 March 2014 / Revised: 23 April 2014 / Accepted: 24 April 2014 / Published: 6 May 2014
(This article belongs to the Special Issue Protein Ubiquitination)
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Through the combined action of ubiquitinating and deubiquitinating enzymes, conjugation of ubiquitin to a target protein acts as a reversible post-translational modification functionally similar to phosphorylation. Indeed, ubiquitination is more and more recognized as a central process for the fine regulation of many cellular pathways. Due to their nature as obligate intracellular parasites, viruses rely on the most conserved host cell machineries for their own replication. Thus, it is not surprising that members from almost every viral family are challenged by ubiquitin mediated mechanisms in different steps of their life cycle and have evolved in order to by-pass or exploit the cellular ubiquitin conjugating system to maximize their chance to establish a successful infection. In this review we will present several examples of the complex interplay that links viruses and the ubiquitin conjugation machinery, with a special focus on the mechanisms evolved by the human immunodeficiency virus to escape from cellular restriction factors and to exit from infected cells. View Full-Text
Keywords: ubiquitin; post-translational modification; viruses; human immunodeficiency virus ubiquitin; post-translational modification; viruses; human immunodeficiency virus

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Calistri, A.; Munegato, D.; Carli, I.; Parolin, C.; Palù, G. The Ubiquitin-Conjugating System: Multiple Roles in Viral Replication and Infection. Cells 2014, 3, 386-417.

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