PMID: 9525587Apr 3, 1998Paper

Separate DNA elements containing ATF/CREB and IE86 binding sites differentially regulate the human cytomegalovirus UL112-113 promoter at early and late times in the infection

Journal of Virology
S M RodemsD H Spector

Abstract

The human cytomegalovirus (HCMV) UL112-113 promoter represents a useful model for studying temporal regulation of viral gene expression. Stimulation of this promoter by the 86-kDa immediate-early protein (IE86) is controlled by sequences between nucleotides -113 and -59, which include both an ATF/CREB and an IE86 binding site. In transient assays, the ATF/CREB site is essential, and the IE86 site, although nonessential, can enhance transcription. With recombinant viruses, we have assessed the function of these promoter elements in the context of the viral genome. Transcription from the inserted UL112-113 promoter shows the same temporal pattern as the endogenous promoter, including the switch to an upstream RNA start site late in infection. Deletion of sequences containing the IE86 site results in a decrease in the level of early transcription and elimination of late transcription. In contrast, when the ATF/CREB site is deleted, early RNA synthesis is almost completely abolished, but late transcription is comparable to that of the wild type, with repositioning of the RNA start site downstream by the number of nucleotides deleted. Replacement of sequences between -108 and -95 with the HCMV cis-repression signal from the major im...Continue Reading

References

Oct 28, 1993·Nature·J C ChriviaR H Goodman

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Citations

Feb 15, 2001·The Journal of General Virology·R A JohnsonE S Huang
Sep 10, 2002·Psychiatric Genetics·Simon May
Nov 13, 2004·The Journal of Biological Chemistry·Severa BundaAleksander Hinek
Jan 9, 1999·Journal of Virology·N H ChauJ A Kerry

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