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Journal of Virology, March 2005, p. 3163-3168, Vol. 79, No. 5
0022-538X/05/$08.00+0 doi:10.1128/JVI.79.5.3163-3168.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.
Janet S. May, and
Philip G. Stevenson*
Division of Virology, Department of Pathology, University of Cambridge, Cambridge, United Kingdom
Received 5 October 2004/ Accepted 1 December 2004
Open reading frame 11 (ORF11) is a conserved gammaherpesvirus gene that remains undefined. We identified the product of murine gammaherpesvirus 68 (MHV-68) ORF11, p43, as a virion component with a predominantly perinuclear distribution in infected cells. MHV-68 lacking p43 grew normally in vitro but showed reduced lytic replication in vivo and a delay in seeding to the spleen. Subsequent latency amplification was normal. Thus, MHV-68 ORF11 encoded a virion component that was important for in vivo lytic replication but dispensable for the establishment of latency.
Present address: Division of Immunology, Department of Pathology, University of Cambridge, Cambridge, United Kingdom.
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