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Journal of Virology, July 2001, p. 6228-6234, Vol. 75, No. 13
0022-538X/01/$04.00+0   DOI: 10.1128/JVI.75.13.6228-6234.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Epstein-Barr Virus Immediate-Early Protein BRLF1 Interacts with CBP, Promoting Enhanced BRLF1 Transactivation

Jennifer J. Swenson,1 Elizabeth Holley-Guthrie,1 and Shannon C. Kenney1,2,*

Lineberger Comprehensive Cancer Center1 and Department of Medicine and Microbiology,2 University of North Carolina, Chapel Hill, North Carolina 27599

Received 18 December 2000/Accepted 6 April 2001

The Epstein-Barr virus (EBV) immediate-early protein BRLF1 is a transcriptional activator that mediates the switch from latent to lytic viral replication. Many transcriptional activators function, in part, due to an interaction with histone acetylases, such as CREB-binding protein (CBP). Here we demonstrate that BRLF1 interacts with the amino and carboxy termini of CBP and that multiple domains of the BRLF1 protein are necessary for this interaction. Furthermore, we show that the interaction between BRLF1 and CBP is important for BRLF1-induced activation of the early lytic EBV gene SM in Raji cells.

* Corresponding author. Mailing address: Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27599-7295. Phone: (919) 966-1248. Fax: (919) 966-8212. E-mail: shann{at}med.unc.edu.

Journal of Virology, July 2001, p. 6228-6234, Vol. 75, No. 13
0022-538X/01/$04.00+0   DOI: 10.1128/JVI.75.13.6228-6234.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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