Abcam, ab68481, Anti-IRF3 antibody [EPR2418Y]

Size: 20µL / 100µL / 1mL
Anti-IRF3 antibody [EPR2418Y] (ab68481) is a rabbit monoclonal antibody detecting IRF3 in Western Blot, Flow Cytometry (Intra), Flow Cytometry, IHC-P, ICC/IF . Suitable for Human, Mouse . - KO validated for confirmed specificity - Biophysical QC for unrivalled batch-batch consistency - Over 70 publications - Trusted since 2008
Key facts
Host species:Rabbit,
Clonality:Monoclonal,
Clone number:EPR2418Y,
Isotype:IgG,
Carrier free:No,
Reacts with:Mouse, Human,
Applications:Flow Cyt (Intra), WB, IHC-P, ICC/IFSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:The exact immunogen used to generate this antibody is proprietary information.

Product details:
What is this antibody validated in?
Anti-IRF3 antibody [EPR2418Y] (ab68481) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Flow Cytometry (Intra), Flow Cytometry (Flow Cyt), Immunohistochemistry (IHC-P), Immunocytochemistry/immunofluorescence (ICC/IF) in Human, Mouse samples.
What is the molecular weight of IRF3?
Anti-IRF3 [EPR2418Y] (ab68481) specifically detects a band for IRF3 (UniProt: Q14653) at a molecular weight of 47kDa.
Trusted by the scientific community
Anti-IRF3 [EPR2418Y] (ab68481) was first used in a scientific publication in 2008 and has been cited over 70 times in peer-reviewed journals.
Trial sizes available!
Test your antibody or perform pre-screening before committing to a larger quantity. Sold in 10µl.
Discover our selection of trial-size antibodies
Specificity confirmed
The specificity of Anti-IRF3 antibody [EPR2418Y] (ab68481) has been confirmed by Western blot testing in IRF3 Knockout HAP1 cells.
Other related products
We have a range of other formats of antibody clone [EPR2418Y] also available for your convenience: ab68481, Carrier free -
ab201809
, HRP -
ab205443
, PE -
ab209919
, APC -
ab310875
, Alexa Fluor® 594 -
ab311704
, Alexa Fluor® 568 -
ab312979
, Alexa Fluor® 555 -
ab313187
, Alexa Fluor® 750 -
ab321692
Patented technology
Our RabMAb
technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to
RabMAb® patents
What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:
- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free batch production
For more information, read more on
recombinant antibodies
Species reactivity
Rat: We have preliminary internal testing data to indicate this antibody may not react with this species.
Please
contact us
for more information.

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Protein A, Storage buffer-pH: 7.2 - 7.4Preservative: 0.01% Sodium azideConstituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
IRF3 also known as Interferon Regulatory Factor 3 acts as an important transcription factor in the immune response. It has a molecular weight of approximately 47 kDa. The IRF3 protein is mainly expressed in the cytoplasm and nucleus of various cell types including immune cells such as macrophages and dendritic cells. The protein becomes activated through phosphorylation a process frequently identified in its phosphorylated form phospo-IRF3 or p-IRF3 which facilitates its role in immune function.
Biological function summary
IRF3 participates in the regulation of type I interferon (IFN) response a fundamental antiviral defense mechanism. IRF3 when phosphorylated forms a complex with CBP/p300 which then translocates to the nucleus to drive the expression of IFN-stimulated genes. This action strengthens the innate immune response and boosts the body's ability to counteract viral infections. Its activity and regulation are significant for maintaining a balanced immune response without excessive inflammation.
Pathways
IRF3 is involved in the Toll-like receptor (TLR) and RIG-I-like receptor (RLR) signaling pathways both essential in pathogen recognition and response. Within these pathways IRF3 interacts with proteins such as MAVS and TBK1 to propagate immune signaling. The activation of IRF3 in these pathways results in the production of type I interferons and other cytokines orchestrating an effective antiviral response. These interactions highlight the protein's central role in mediating immune signaling cascades.
IRF3's malfunction or deregulation can contribute to autoimmune diseases and antiviral deficiencies. Conditions such as systemic lupus erythematosus (SLE) and chronic hepatitis B infection are linked to IRF3 activity. During autoimmune responses or viral persistence the aberrant activation of IRF3 can lead to inappropriate immune responses. The connection with proteins like STAT1 in these conditions highlights the complex network IRF3 engages in facilitating its impact on disease progression and immune dysregulation.