Systematic name M5133
Brief description Genes up-regulated in Jurkat cells (T lymphocyte) by expression of a constitutively active form of IRF3 [GeneID=3661].
Full description or abstract Ubiquitously expressed interferon regulatory factor 3 (IRF-3) is directly activated after virus infection and functions as a key activator of the immediate-early alpha/beta interferon (IFN) genes, as well as the RANTES chemokine gene. In the present study, a tetracycline-inducible expression system expressing a constitutively active form of IRF-3 (IRF-3 5D) was combined with DNA microarray analysis to identify target genes regulated by IRF-3. Changes in mRNA expression profiles of 8,556 genes were monitored after Tet-inducible expression of IRF-3 5D. Among the genes upregulated by IRF-3 were transcripts for several known IFN-stimulated genes (ISGs). Subsequent analysis revealed that IRF-3 directly induced the expression of ISG56 in an IFN-independent manner through the IFN-stimulated responsive elements (ISREs) of the ISG56 promoter. These results demonstrate that, in addition to its role in the formation of a functional immediate-early IFN-beta enhanceosome, IRF-3 is able to discriminate among ISRE-containing genes involved in the establishment of the antiviral state as a direct response to virus infection.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 11991981   Authors: Grandvaux N,Servant MJ,tenOever B,Sen GC,Balachandran S,Barber GN,Lin R,Hiscott J
Exact source Table 1: fold induction > 0
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(show 4 gene sets from the same authors)
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Organism Homo sapiens
Contributed by Yujin Hoshida (Broad Institute)
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Version history 3.0: Renamed from GRANDVAUX_IRF3_DN

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