• Product nameAnti-IRF7 antibody
    See all IRF7 primary antibodies
  • Description
    Rabbit polyclonal to IRF7
  • SpecificityThis antibody reacts with IRF7
  • Tested applicationsSuitable for: ICC/IF, WB, IP, IHC-Pmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    A synthetic peptide corresponding to 14 amino acids near the carboxy terminus of human IRF7

  • Positive control
    • 293 whole cell lysate and mouse spleen tissue HepG2 cells. Jurkat whole cells extract.



Our Abpromise guarantee covers the use of ab62505 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
ICC/IF Use a concentration of 5 µg/ml.
WB Use a concentration of 0.5 - 2 µg/ml. Detects a band of approximately 51 kDa (predicted molecular weight: 54 kDa).Can be blocked with Human IRF7 peptide (ab92594).
IP Use at an assay dependent concentration.
IHC-P Use a concentration of 5 µg/ml.


  • FunctionTranscriptional activator. Binds to the interferon-stimulated response element (ISRE) in IFN promoters and in the Q promoter (Qp) of EBV nuclear antigen 1 (EBNA1). Functions as a molecular switch for antiviral activity. Activated by phosphorylation in response to infection. Activation leads to nuclear retention, DNA binding, and derepression of transactivation ability.
  • Tissue specificityExpressed predominantly in spleen, thymus and peripheral blood leukocytes.
  • Sequence similaritiesBelongs to the IRF family.
    Contains 1 IRF tryptophan pentad repeat DNA-binding domain.
  • Post-translational
    In response to a viral infection, phosphorylated on the C-terminal serine cluster. Phosphorylation, and subsequent activation is inhibited by vaccinia virus protein E3.
    TRAF6-mediated ubiquitination is required for IRF7 activation.
  • Cellular localizationNucleus. Cytoplasm. The phosphorylated and active form accumulates selectively in the nucleus.
  • Information by UniProt
  • Database links
  • Alternative names
    • IMD39 antibody
    • Interferon regulatory factor 7 antibody
    • Interferon regulatory factor 7H antibody
    • IRF 7 antibody
    • IRF 7A antibody
    • IRF 7H antibody
    • IRF-7 antibody
    • IRF7 antibody
    • IRF7_HUMAN antibody
    • IRF7A antibody
    • IRF7B antibody
    • IRF7C antibody
    • IRF7H antibody
    see all

Anti-IRF7 antibody images

  • ICC/IF image of ab62505 stained HepG2 cells (ab7900). The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum (ab7481) / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab62505, 5µg/ml) overnight at +4°C. The secondary antibody (green) was ab96899, DyLight® 488 goat anti-rabbit IgG (H+L) used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

  • Immunofluorescence of IRF7 in Mouse Spleen cells using ab62505 at 20 ug/ml.

  • Lane 1 : Anti-IRF7 antibody (ab62505) at 0.5 µg/ml
    Lane 2 : Anti-IRF7 antibody (ab62505) at 1 µg/ml
    Lane 3 : Anti-IRF7 antibody (ab62505) at 2 µg/ml

    Lane 1 : 293 whole cell lysate
    Lane 2 : 293 whole cell lysate
    Lane 3 : 293 whole cell lysate

    Lysates/proteins at 15 µg per lane.

    Predicted band size : 54 kDa
    Observed band size : 51 kDa (why is the actual band size different from the predicted?)
  • Immunohistochemistry of IRF7 in paraffin embedded mouse spleen tissue section with ab62505 antibody at 5 µg/ml.
  • IRF7 was immunoprecipitated using 0.5mg Jurkat whole cell extract (ab7899), 5µg of Rabbit polyclonal to IRF7 and 50µl of protein G magnetic beads (+). No antibody was added to the control (-).
    The antibody was incubated under agitation with Protein G beads for 10min, Jurkat whole cell extract lysate diluted in RIPA buffer was added to each sample and incubated for a further 10min under agitation.
    Proteins were eluted by addition of 40µl SDS loading buffer and incubated for 10min at 70oC; 10µl of each sample was separated on a SDS PAGE gel, transferred to a nitrocellulose membrane, blocked with 5% BSA and probed with ab62505.
    Secondary: Mouse monoclonal [SB62a] Secondary Antibody to Rabbit IgG light chain (HRP) (ab99697).
    Band: 49kDa: IRF7; non specific - 40kDa: We are unsure as to the identity of this extra band.

References for Anti-IRF7 antibody (ab62505)

This product has been referenced in:
  • Kropp KA  et al. A temporal gate for viral enhancers to co-opt Toll-like-receptor transcriptional activation pathways upon acute infection. PLoS Pathog 11:e1004737 (2015). ChIP . Read more (PubMed: 25856589) »
  • Dupuis-Maurin V  et al. Overexpression of the transcription factor Sp1 activates the OAS-RNAse L-RIG-I pathway. PLoS One 10:e0118551 (2015). WB . Read more (PubMed: 25738304) »

See all 5 Publications for this product

Product Wall

Application Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Sample Mouse Tissue sections (Mammary gland tissue)
Antigen retrieval step Heat mediated - Buffer/Enzyme Used: Sodium Citrate
Permeabilization Yes - PBS with 3% Triton
Specification Mammary gland tissue
Blocking step Serum as blocking agent for 30 minute(s) · Concentration: 10% · Temperature: 25°C
Fixative Formaldehyde

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Submitted Aug 04 2015

Application Western blot
Sample Dog Cell lysate - whole cell (CPEK)
Gel Running Conditions Reduced Denaturing (4-20% polyacrylamide)
Loading amount 20 µg
Treatment stim-stimulated PolyADT
Specification CPEK
Blocking step Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5%

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Submitted Apr 16 2015

Application Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Blocking step BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C
Antigen retrieval step Heat mediated - Buffer/Enzyme Used: Na-citrate pH6
Sample Mouse Tissue sections (Liver, P5)
Specification Liver, P5
Permeabilization Yes - Triton 0,05%
Fixative Paraformaldehyde

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Verified customer

Submitted Oct 07 2014

Thank you for contacting us.

Regarding ab109255, the immunogen is within aa 200-250 and is able to detect isoforms A, B and D.

For ab62505:

The immunogen does not span a phosphorylated region (it is N-terminal of the pho...

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Thank you for your call today and for letting us know about the trouble with ab62505.

As we discussed, I'm sending a free of charge vial of ab109255 on the order ***, which should arrive tomorrow. Please keep me updated about the results with...

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Thank you for contacting us.

The IRF7 protein according to Uniprot (http://www.uniprot.org/uniprot/Q92985) have isoform molecular weight 54, 51, 18 and 55 kDa. Please note, the molecular weight for unprocessed protein (predicted) is based on...

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Many thanks for having patience!

Abcam guarantees this product to work in the species/application used in this Abreview.
Application Western blot
Sample Rat Cell lysate - whole cell (bone marrow derived-macrophages)
Loading amount 30 µg
Specification bone marrow derived-macrophages
Gel Running Conditions Reduced Denaturing (10% gel)
Blocking step Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 22°C

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Verified customer

Submitted Dec 01 2009