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Virus Res. 1992 Nov;26(2):141-52.

The herpes simplex virus type 1 ICP6 gene is regulated by a 'leaky' early promoter.

Author information

1
Syntex Research, Palo Alto, CA 94304.

Abstract

Expression from the promoter for the large subunit (ICP6) of the ribonucleotide reductase encoded by herpes simplex virus type 1 (HSV-1) has been examined. Using the lacZ reporter gene fused in-frame with ICP6 regulatory sequences to assay expression quantitatively, we showed that the ICP6 promoter responded very weakly to the alpha-transinducing factor (TIF) in the absence of all other viral gene products, but much more strongly to immediate early proteins. Similar patterns of regulation were observed when the reporter gene construct was located at two different positions within the the viral genome or in a stably transfected Vero cell line. Infection of the stably transfected cells with various HSV-1 mutants identified ICP0 as the major transactivator of the ICP6 promoter.

PMID:
1335673
DOI:
10.1016/0168-1702(92)90153-z
[Indexed for MEDLINE]

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