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Mouse Irf3 Blocking Peptide (N-term)

Synthetic peptide

Product Information
Primary Accession P70671
Other Accession Q764M6, Q4JF28, NP_058545.1
Additional Information
Gene ID 54131
Other Names Interferon regulatory factor 3, IRF-3, Irf3
Target/Specificity The synthetic peptide sequence is selected from aa 61-72 of MOUSE Irf3
Format Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.
StorageMaintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.
PrecautionsThis product is for research use only. Not for use in diagnostic or therapeutic procedures.
Protein Information
Name Irf3
Function Key transcriptional regulator of type I interferon (IFN)-dependent immune responses which plays a critical role in the innate immune response against DNA and RNA viruses. Regulates the transcription of type I IFN genes (IFN-alpha and IFN-beta) and IFN-stimulated genes (ISG) by binding to an interferon-stimulated response element (ISRE) in their promoters. Acts as a more potent activator of the IFN-beta (IFNB) gene than the IFN-alpha (IFNA) gene and plays a critical role in both the early and late phases of the IFNA/B gene induction. Found in an inactive form in the cytoplasm of uninfected cells and following viral infection, double-stranded RNA (dsRNA), or toll-like receptor (TLR) signaling, is phosphorylated by IKBKE and TBK1 kinases. This induces a conformational change, leading to its dimerization and nuclear localization and association with CREB binding protein (CREBBP) to form dsRNA-activated factor 1 (DRAF1), a complex which activates the transcription of the type I IFN and ISG genes. Can activate distinct gene expression programs in macrophages and can induce significant apoptosis in primary macrophages.
Cellular Location Cytoplasm. Nucleus. Note=Shuttles between cytoplasmic and nuclear compartments, with export being the prevailing effect. When activated, IRF3 interaction with CREBBP prevents its export to the cytoplasm (By similarity).
Research Areas
Citations (0)

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Mediates interferon-stimulated response element (ISRE) promoter activation. Functions as a molecular switch for antiviral activity. DsRNA generated during the course of an viral infection leads to IRF3 phosphorylation on the C-terminal serine/threonine cluster. This induces a conformational change, leading to its dimerization, nuclear localization and association with CREB binding protein (CREBBP) to form dsRNA-activated factor 1 (DRAF1), a complex which activates the transcription of genes under the control of ISRE. The complex binds to the IE and PRDIII regions on the IFN-alpha and IFN-beta promoters respectively. IRF-3 does not have any transcription activation domains (By similarity).


Marichal, T., et al. J. Allergy Clin. Immunol. 126(4):836-844(2010)
Menachery, V.D., et al. J. Virol. 84(19):9685-9694(2010)
Carrigan, S.O., et al. J. Immunol. 185(6):3602-3609(2010)
Wang, J., et al. J. Immunol. 185(3):1720-1729(2010)
Farlik, M., et al. Immunity 33(1):25-34(2010)

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$ 80.00
$ 99.00
Cat# BP20073a
(40 western blots)
Availability: 2 weeks
Bulk Size
Seasonal Special on Bulk Order
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