Cell Signaling Technology

Product Pathways - Innate Immunity

IRF-5 (E1N9G) Rabbit mAb (PE Conjugate) #52478

No. Size Price
52478S 100 µl ( 50 tests ) ¥3,876.00 现货查询 购买询价
52478 carrier free & custom formulation / quantityemail request
Applications Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
F 1:50 Human, Endogenous Rabbit IgG

Species cross-reactivity is determined by western blot.

Applications Key: F=Flow Cytometry,

Specificity / Sensitivity

IRF-5 (E1N9G) Rabbit mAb (PE Conjugate) recognizes endogenous levels of total IRF-5 protein.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Leu169 of human IRF-5 protein.


This Cell Signaling Technology antibody is conjugated to phycoerythrin (PE) and tested in-house for direct flow cytometry analysis in human cells. This antibody is expected to exhibit the same species cross-reactivity as the unconjugated IRF-5 (E1N9G) Rabbit mAb #13496.

Flow Cytometry

Flow Cytometry

Flow cytometric analysis of K-562 cells (blue) and THP-1 cells (green) using IRF-5 (E1N9G) Rabbit mAb (PE Conjugate).


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-5 is expressed in lymphoid tissues and peripheral blood lymphocytes and participates in the induction of type I interferon genes following viral infection (3). Activation of IRF-5 signaling is triggered by components of the toll-like receptor (TLR) pathway, including TLR7 and MyD88 (4,5). Research studies show that genetic variants of IRF5 have been associated with disorders where the IFN pathway is abnormally activated, such as systemic lupus erythematosus (6,7).

  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. Barnes, B.J. et al. (2001) J Biol Chem 276, 23382-90.
  4. Takaoka, A. et al. (2005) Nature 434, 243-9.
  5. Schoenemeyer, A. et al. (2005) J Biol Chem 280, 17005-12.
  6. Sigurdsson, S. et al. (2005) Am J Hum Genet 76, 528-37.
  7. Graham, R.R. et al. (2006) Nat Genet 38, 550-5.

Application References

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Companion Products

For Research Use Only. Not For Use In Diagnostic Procedures.

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.

Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.

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