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The DNA genome of eukaryotic cells is compacted by histone proteins within the nucleus to form chromatin. Nuclear‐replicating viruses such as adenovirus have evolved mechanisms of chromatin manipulation to promote infection and subvert host defenses. Epigenetic factors may also regulate persistent adenovirus infection and reactivation in lymphoid tissues. In this review, we discuss the viral proteins...
Stress-induced reactivation of latent herpesviruses requires disabling of repression, but the mechanism for converting silenced chromatin into an active state is unknown. In this issue of Cell Host & Microbe, Cliffe et al. (2015) suggest a methyl/phospho switch on histone H3 overcomes repression to facilitate reactivation of latent herpes simplex virus type 1 (HSV-1).
Viruses are obligate intracellular parasites that necessarily rely on hijacking cellular resources to produce viral progeny. The success of viral infection requires manipulation of host chromatin in order to activate genes useful for production of viral proteins as well as to suppress antiviral responses. Host chromatin manipulation on a global level is likely reliant on modulation of post-translational...
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