The Chicken Adenovirus Gam1 Protein, an Inhibitor of the Sumoylation Pathway, Partially Complements ICP0-null Mutant Herpes Simplex Virus 1

Overview

Journal J Virol

Publisher American Society for Microbiology

Date 2014 Mar 7

PMID 24600001

Citations 2

Authors

Roger D Everett

Susanna Chiocca

Anne Orr

Affiliations

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Abstract

Herpes simplex virus 1 (HSV-1) regulatory protein ICP0 stimulates efficient infection via its E3 ubiquitin ligase activity that causes degradation of several cellular proteins, some of which are sumoylated. Chicken adenovirus Gam1 protein also interferes with the sumoylation pathway, and both proteins disrupt promyelocytic leukemia protein (PML) nuclear bodies (NBs). We report that Gam1 increases the infection efficiency of ICP0-null mutant HSV-1 by approximately 100-fold, thus strengthening the hypothesis that PML NB- and sumoylation-related mechanisms are important factors in the control of HSV-1 infection.

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