Cell Signaling Technology

Product Pathways - Innate Immunity

Phospho-IRF-7 (Ser437/438) Antibody (Mouse Specific) #14767

No. Size Price
14767S 100 µl ( 10 western blots ) ¥3,900.00 现货查询 购买询价
14767 carrier free & custom formulation / quantityemail request
Applications Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W 1:1000 Mouse, Endogenous 55 Rabbit

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting,

Specificity / Sensitivity

Phospho-IRF-7 (Ser437/438) Antibody (Mouse Specific) recognizes endogenous levels of mouse IRF-7 protein when dually phosphorylated at Ser437 and Ser438. This antibody can also recognize single phosphorylation at these sites, but has a preference for Ser438.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser437 and Ser438 of mouse IRF-7 protein. Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts from 293T cells, mock transfected (-) or transfected with constructs expressing full-length Myc/DDK-tagged mouse IRF-7 protein (mIRF-7-Myc/DDK; +) or GST-tagged human IKK-ε protein (hIKK-ε-GST; +), using Phospho-IRF-7 (Ser437/438) Antibody (Mouse Specific) (upper) and β-Actin (D6A8) Rabbit mAb #8457 (lower).

Western Blotting

Western Blotting

Western blot analysis of extracts from Raw 264.7 cells, untreated (-) or transfected with poly(deoxyadenylic-deoxythymidylic) acid (dA:dT, 5 μg/ml, overnight; +), using Phospho-IRF-7 (Ser437/438) Antibody (Mouse Specific) (upper) and β-Actin (D6A8) Rabbit mAb #8457 (lower).


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, ISGF3γ/p48, 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-7, which is functionally similar to IRF-3, is preferentially expressed in lymphoid cells and induced by virus, LPS, and IFN-α (3-5). IRF-7 plays an essential role in the induction of type I interferon in response to viral infection (6-8). Like IRF-3, IRF-7 is regulated at multiple serine phosphorylation sites near its carboxyl terminus, which are required for nuclear translocation, DNA binding, and transcriptional activity (9-11).

  1. Taniguchi, T. et al. (2001) Annu Rev Immunol 19, 623-55.
  2. Honda, K. and Taniguchi, T. (2006) Nat Rev Immunol 6, 644-58.
  3. Au, W.C. et al. (1998) J Biol Chem 273, 29210-7.
  4. Wathelet, M.G. et al. (1998) Mol Cell 1, 507-18.
  5. Marié, I. et al. (1998) EMBO J 17, 6660-9.
  6. Sato, M. et al. (2000) Immunity 13, 539-48.
  7. Honda, K. et al. (2005) Nature 434, 772-7.
  8. Colina, R. et al. (2008) Nature 452, 323-8.
  9. Lin, R. et al. (2000) J Biol Chem 275, 34320-7.
  10. Yang, H. et al. (2003) J Biol Chem 278, 15495-504.
  11. Caillaud, A. et al. (2005) J Biol Chem 280, 17671-7.

Application References

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