doi: 10.1006/viro.1996.0338.
The herpes simplex virus type 1 transactivator ICPO mediates aberrant intracellular localization of the viral helicase/primase complex subunits
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- PMID: 8669135
- DOI: 10.1006/viro.1996.0338
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The herpes simplex virus type 1 transactivator ICPO mediates aberrant intracellular localization of the viral helicase/primase complex subunits
Virology.
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Free article
Abstract
The infected cell polypeptide 0 (ICP0) protein of herpes simplex virus type 1 (HSV-1) is a promiscuous transactivator. When expressed by transfection, ICP0 forms spherical structures in the nucleus. Using a double-label immunofluorescence assay, we have found that the HSV-1 helicase/primase complex subunits accumulate within ICP0 structures in cotransfected cells. This phenomenon was also observed in cells coexpressing ICP0 and UL6, a protein thought to be involved in the cleavage and/or packaging of viral genomes. ICP0 structures were found to be proteinaceous by immunoelectron microscopy. These results suggest that ICP0 may interact nonspecifically with a variety of viral proteins.
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