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- W2079771845 endingPage "12163" @default.
- W2079771845 startingPage "12154" @default.
- W2079771845 abstract "ABSTRACT The varicella-zoster virus (VZV) major transactivator, IE62, is involved in the expression of all kinetic classes of VZV genes and can also activate cellular promoters, promoters from heterologous viruses, and artificial promoters containing only TATA elements. A key component of the mechanism of IE62 transactivation is an acidic activation domain comprising the N-terminal 86 amino acids of IE62. However, the cellular target of this N-terminal acidic activation is unknown. In the work presented here, we show that the IE62 activation domain targets the human Mediator complex via the Med25 (ARC92) subunit and that this interaction appears to be fundamental for transactivation by the IE62 activation domain. In contrast, the Med23 subunit (Sur2/TRAP150β/DRIP130/CRSP130) of the Mediator complex is not essential for IE62-mediated activation. Further, the IE62 activation domain appears to selectively interact with a form of the Mediator complex lacking CDK8. Chromatin immunoprecipitation experiments showed that IE62 stimulates recruitment of Mediator to an IE62-responsive model promoter. Finally, immunofluorescence microscopy of VZV-infected cells demonstrated intranuclear translocation of the Mediator complex to viral replication compartments. These studies suggest that Mediator is an essential component for efficient VZV gene expression." @default.
- W2079771845 created "2016-06-24" @default.
- W2079771845 creator A5077600818 @default.
- W2079771845 creator A5084805116 @default.
- W2079771845 creator A5090654075 @default.
- W2079771845 date "2008-12-15" @default.
- W2079771845 modified "2023-09-23" @default.
- W2079771845 title "Varicella-Zoster Virus IE62 Protein Utilizes the Human Mediator Complex in Promoter Activation" @default.
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- W2079771845 doi "https://doi.org/10.1128/jvi.01693-08" @default.
- W2079771845 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2593350" @default.
- W2079771845 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/18842726" @default.
- W2079771845 hasPublicationYear "2008" @default.
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