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Phospho-IRF-3 (Ser396) (D6O1M) Rabbit Monoclonal Antibody (InTraSeq 3' Conjugate 3103) #94375

Filter:
  • SCA

    Product Specifications

    REACTIVITY H M
    SENSITIVITY Endogenous
    MW (kDa)
    Source/Isotype Rabbit IgG
    Application Key:
    • SCA-Single Cell Analysis 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 

    Product Information

    Storage

    Supplied in PBS (pH 7.2), 2 mM EDTA, 0.05% Triton X-100, 2 mg/mL BSA, and 50% glycerol. Store at -20°C. Do not aliquot the antibody.

    Protocol

    Specificity / Sensitivity

    Phospho-IRF-3 (Ser396) (D6O1M) Rabbit mAb (InTraSeq™ 3' Conjugate 3103) recognizes endogenous levels of IRF-3 protein only when phosphorylated at Ser396.

    Species Reactivity:

    Human, Mouse

    Source / Purification

    Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser396 of human IRF-3 protein.

    Background

    Interferon regulatory factors (IRFs) comprise a family of transcription factors that function within the Jak/Stat pathway to regulate interferon (IFN) and IFN-inducible gene expression in response to viral infection (1). IRFs play an important role in pathogen defense, autoimmunity, lymphocyte development, cell growth, and susceptibility to transformation. The IRF family includes nine members: IRF-1, IRF-2, IRF-9/ISGF3γ, IRF-3, IRF-4 (Pip/LSIRF/ICSAT), IRF-5, IRF-6, IRF-7, and IRF-8/ICSBP. All IRF proteins share homology in their amino-terminal DNA-binding domains. IRF family members regulate transcription through interactions with proteins that share similar DNA-binding motifs, such as IFN-stimulated response elements (ISRE), IFN consensus sequences (ICS), and IFN regulatory elements (IRF-E) (2).
    IRF-3 can inhibit cell growth and plays a critical role in controlling the expression of genes in the innate immune response (1-4). In unstimulated cells, IRF-3 is present in the cytoplasm. Viral infection results in phosphorylation of IRF-3 and leads to its translocation to the nucleus where it activates promoters containing IRF-3-binding sites. Phosphorylation of IRF-3 occurs at a cluster of C-terminal serine and threonine residues (between 385 and 405) leading to its association with the p300/CBP coactivator protein that promotes DNA binding and transcriptional activity (5). During infection, IRF-3 is likely activated through a pathway that includes activation of Toll-like receptors and of a kinase complex that includes IKKε and TBK1 (6,7). IRF-3 is phosphorylated at Ser396 following viral infection, expression of viral nucleocapsid, and double stranded RNA treatment. These events likely play a role in the activation of IRF-3 (8).

    Alternate Names

    IIAE7; Interferon regulatory factor 3; IRF-3; IRF3

    For Research Use Only. Not for Use in Diagnostic Procedures.
    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    10x Genomics, 10x, Feature Barcode, and Chromium are the trademarks or registered trademarks of 10x Genomics, Inc.
    InTraSeq is a trademark of Cell Signaling Technology, Inc.
    KARPAS cell line source: Dr. Abraham Karpas at the University of Cambridge.
    Subject to patents licensed from 10x Genomics, Inc. for use with single-cell (i.e., Chromium) 10x products.
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