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The three-component helicase/primase complex of herpes simplex virus-1

期刊

OPEN BIOLOGY
卷 11, 期 6, 页码 -

出版社

ROYAL SOC
DOI: 10.1098/rsob.210011

关键词

herpesvirus DNA replication; helicase; primase; anti-viral drug

资金

  1. US National Institutes of Health (NIH), National Institute of Environmental Health Sciences (NIEHS) [1Z01ES102765]

向作者/读者索取更多资源

HSV-1 is a herpesvirus that infects humans and encodes proteins for replicating its genome, including a helicase and primase. The helicase-primase complex of UL5/UL8/UL52 has three components, with UL5 and UL52 functionally interdependent and UL8 coordinating their activities. Antiviral compounds target the functions of UL5 and UL52 for potential alternative treatments.
Herpes simplex virus type 1 (HSV-1) is one of the nine herpesviruses that infect humans. HSV-1 encodes seven proteins to replicate its genome in the hijacked human cell. Among these are the herpes virus DNA helicase and primase that are essential components of its replication machinery. In the HSV-1 replisome, the helicase-primase complex is composed of three components including UL5 (helicase), UL52 (primase) and UL8 (non-catalytic subunit). UL5 and UL52 subunits are functionally interdependent, and the UL8 component is required for the coordination of UL5 and UL52 activities proceeding in opposite directions with respect to the viral replication fork. Anti-viral compounds currently under development target the functions of UL5 and UL52. Here, we review the structural and functional properties of the UL5/UL8/UL52 complex and highlight the gaps in knowledge to be filled to facilitate molecular characterization of the structure and function of the helicase-primase complex for development of alternative anti-viral treatments.

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