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. 1985 Aug;82(16):5265-9.
doi: 10.1073/pnas.82.16.5265.

Identification of immediate early genes from herpes simplex virus that transactivate the virus thymidine kinase gene

Identification of immediate early genes from herpes simplex virus that transactivate the virus thymidine kinase gene

I H Gelman et al. Proc Natl Acad Sci U S A. 1985 Aug.

Abstract

A HeLa cell transient-expression assay system was used to determine if isolated immediate early (alpha) genes from herpes simplex virus (HSV) could transcriptionally activate (transactivate) the type 1 (HSV-1) thymidine kinase (TK) gene [an early (beta) gene]. Cells transfected with the TK gene alone transcribed very low levels of TK RNA. Cells cotransfected with plasmids bearing the sequences that encode the alpha-gene product infected cell protein 0 or 4 (ICP0 or ICP4) and the TK gene faithfully transcribed high levels of TK RNA. The plasmid containing the sequences encoding ICP0 was a more potent transactivator than the plasmid containing the sequences for ICP4.

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