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Development of a novel cell-based assay to monitor the transactivation activity of the HSV-1 protein ICP0
Fowler, Angela Marie Shinogle, Heather E. Davido, David J.
Fowler, Angela Marie
Shinogle, Heather E.
Davido, David J.
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Abstract
The herpes simplex virus type 1 (HSV-1) immediate-early phosphoprotein infected cell protein 0 (ICP0) is a potent transcriptional activator of viral genes and is required for efficient viral replication and reactivation from latency. However, it is largely unknown what role specific cellular factors play in the transactivator function of ICP0. With the long-term goal of identifying these factors, we developed a cell-based assay in a 96-well format to measure this activity of ICP0. We designed a system using a set of HSV-1 GFP reporter viruses in which the expression of GFP is potently induced by ICP0 in cell culture. The initial feasibility of this system was confirmed over a 24-hour period by fluorescence microscopy. We adapted this assay to a 96-well plate format, quantifying GFP expression with a fluorescence scanner. Our results indicate that the cell-based assay we developed is a valid and effective method for examining the transactivating activity of ICP0. This assay can be used to identify cellular factors that regulate the transactivating activity of ICP0.
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Date
2016-08-01
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Elsevier Masson
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Keywords
HSV, ICP0, GFP, Viral transcription, Cell-based assay
Citation
Fowler, Angela M., Heather E. Shinogle, and David J. Davido. "Development of a Novel Cell-based Assay to Monitor the Transactivation Activity of the HSV-1 Protein ICP0." Antiviral Research 120 (2015): 1-6.