NDLI: Efficient Herpes Simplex Virus 1 Replication Requires Cellular ATR Pathway Proteins

Content Provider	PubMed Central
Author	Mohni, Kareem N. Dee, Alexander R. Smith, Samantha Schumacher, April J. Weller, Sandra K.
Copyright Year	2013
Abstract	Herpes simplex virus 1 (HSV-1) is a double-stranded DNA virus that replicates in the nucleus of the host cell and is known to interact with several components of the cellular DNA-damage-signaling machinery. We have previously reported that the DNA damage response kinase, ATR, is specifically inactivated in HSV-1-infected cells. On the other hand, we have also shown that ATR and its scaffolding protein, ATRIP, are recruited to viral replication compartments, where they play beneficial roles during HSV-1 replication. In order to better understand this apparent discrepancy, we tested the hypothesis that some of the components of the ATR pathway may exert an antiviral effect on infection. In fact, we learned that all 10 of the canonical ATR pathway proteins are stable in HSV-infected cells and are recruited to viral replication compartments; furthermore, short hairpin RNA (shRNA) knockdown shows that several, including ATRIP, RPA70, TopBP1, Claspin, and CINP, are required for efficient HSV-1 replication. We also determined that activation of the ATR kinase prior to infection did not affect virus yield but did result in reduced levels of recombination between coinfecting viruses. Together, these data suggest that ATR pathway proteins are not antiviral per se but that activation of ATR signaling may have negative consequences during viral replication, such as inhibiting recombination.
Related Links	http://dx.doi.org/10.1128/jvi.02504-12
Ending Page	542
Page Count	12
Starting Page	531
File Format	PDF
ISSN	0022538X
e-ISSN	10985514
Journal	Journal of Virology
Issue Number	1
Volume Number	87
Language	English
Publisher	American Society for Microbiology
Publisher Date	2013-01-01
Access Restriction	Open
Rights Holder	American Society for Microbiology
Subject Keyword	Immunology Virology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Virology Immunology Microbiology Insect Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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