1988•Journal of General VirologyRequires access

Ribonucleotide Reductase Encoded by Herpes Simplex Virus Is a Determinant of the Pathogenicity of the Virus in Mice and a Valid Antiviral Target

Janet M. Cameron, I. McDougall, Howard S. Marsden, V. G. Preston, D. Michael Ryan, John H. Subak-Sharpe

Abstract

The role of the herpes simplex virus (HSV)-encoded ribonucleotide reductase (RR) in the pathogenicity of the virus has been examined by use of mutants with lesions in either the large or small subunit of the enzyme. The virulence of the mutants in mice was reduced by about 10(6)-fold when compared with that of the parental virus (HSV type 1 strain 17), while the virulence of a revertant of one of the mutants was restored to within about 100-fold of that of the parent virus. These experiments demonstrate that activity of the HSV RR is essential for virus pathogenicity in mice and suggests that the enzyme is a valid target for specific antiviral compounds.

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Key concepts: Biology, Herpes simplex virus, Virulence, Virology, Virus, Ribonucleotide reductase, Mutant, Enzyme