| Literature DB >> 7843405 |
T Kawakami1, M Matsumoto, M Sato, H Harada, T Taniguchi, M Kitagawa.
Abstract
Two virus-inducible transcription factors, IRF-1 and IRF-2 have been identified as an activator and a repressor, respectively, of the type I interferon (IFN) genes. Recent studies with mice carrying null mutations for the IRF-1 or IRF-2 alleles have revealed the existence of IRF-1-dependent and -independent pathways mediating IFN-beta gene induction. Here we report that the expression of an IRF family member ISGF3 gamma is induced upon viral infection in IRF-1-/-, IRF-2-/- embryonic fibroblasts. Furthermore, ISGF3 gamma can bind to a virus-inducible promoter element in the IFN-beta gene. These results suggest that ISGF3 gamma or complex containing ISGF3 gamma is involved in the IRF-1-independent pathway mediating IFN-beta gene regulation.Entities:
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Year: 1995 PMID: 7843405 DOI: 10.1016/0014-5793(94)01426-2
Source DB: PubMed Journal: FEBS Lett ISSN: 0014-5793 Impact factor: 4.124