Rabbit Polyclonal IRF3 antibody. Suitable for IHC-P and reacts with Mouse, Human samples. Immunogen corresponding to Synthetic Peptide within Human IRF3 aa 50-100 conjugated to Keyhole Limpet Haemocyanin.
Images
Key facts
- Isotype
IgG
- Host species
Rabbit
- Storage buffer
pH: 7.4
Preservative: 0.02% Proclin 300
Constituents: 50% Glycerol (glycerin, glycerine), 48.98% TBS, 1X, 1% BSA- Form
Liquid
- Clonality
Polyclonal
Immunogen
- Synthetic Peptide within Human IRF3 aa 50-100 conjugated to Keyhole Limpet Haemocyanin. The exact immunogen used to generate this antibody is proprietary information. Database link Q14653
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Reactivity data
Select an application| IHC-P | |
|---|---|
| Human | Tested |
| Mouse | Tested |
| Rat | Predicted |
IHC-P
TestedTested
| Species | Dilution info | Notes |
|---|---|---|
Species Mouse | Dilution info 1/100 - 1/500 | Notes - |
Species Human | Dilution info 1/100 - 1/500 | Notes - |
PredictedPredicted
| Species | Dilution info | Notes |
|---|---|---|
Species Rat | Dilution info - | Notes - |
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Target data
Function
Key transcriptional regulator of type I interferon (IFN)-dependent immune responses which plays a critical role in the innate immune response against DNA and RNA viruses (PubMed:22394562, PubMed:25636800, PubMed:27302953). Regulates the transcription of type I IFN genes (IFN-alpha and IFN-beta) and IFN-stimulated genes (ISG) by binding to an interferon-stimulated response element (ISRE) in their promoters (PubMed:11846977, PubMed:16846591, PubMed:16979567, PubMed:20049431, PubMed:32972995). Acts as a more potent activator of the IFN-beta (IFNB) gene than the IFN-alpha (IFNA) gene and plays a critical role in both the early and late phases of the IFNA/B gene induction (PubMed:16846591, PubMed:16979567, PubMed:20049431). Found in an inactive form in the cytoplasm of uninfected cells and following viral infection, double-stranded RNA (dsRNA), or toll-like receptor (TLR) signaling, is phosphorylated by IKBKE and TBK1 kinases (PubMed:22394562, PubMed:25636800, PubMed:27302953). This induces a conformational change, leading to its dimerization and nuclear localization and association with CREB binding protein (CREBBP) to form dsRNA-activated factor 1 (DRAF1), a complex which activates the transcription of the type I IFN and ISG genes (PubMed:16154084, PubMed:27302953, PubMed:33440148). Can activate distinct gene expression programs in macrophages and can induce significant apoptosis in primary macrophages (PubMed:16846591). In response to Sendai virus infection, is recruited by TOMM70:HSP90AA1 to mitochondrion and forms an apoptosis complex TOMM70:HSP90AA1:IRF3:BAX inducing apoptosis (PubMed:25609812). Key transcription factor regulating the IFN response during SARS-CoV-2 infection (PubMed:33440148).
Alternative names
Interferon regulatory factor 3, IRF-3, IRF3
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Rabbit Polyclonal IRF3 antibody. Suitable for IHC-P and reacts with Mouse, Human samples. Immunogen corresponding to Synthetic Peptide within Human IRF3 aa 50-100 conjugated to Keyhole Limpet Haemocyanin.
Key facts
- Isotype
IgG
- Host species
Rabbit
- Storage buffer
pH: 7.4
Preservative: 0.02% Proclin 300
Constituents: 50% Glycerol (glycerin, glycerine), 48.98% TBS, 1X, 1% BSA- Form
Liquid
- Clonality
Polyclonal
- Immunogen
- Synthetic Peptide within Human IRF3 aa 50-100 conjugated to Keyhole Limpet Haemocyanin. The exact immunogen used to generate this antibody is proprietary information. Database link Q14653
- Purification technique
Affinity purification Protein A
- Concentration
Storage
- 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
Notes
Abcam is leading the way to address reproducibility in scientific research with our highly validated recombinant monoclonal and recombinant multiclonal antibodies. Search & select one of Abcam's thousands of recombinant alternatives to eliminate batch-variability and unnecessary animal use.
If you do not find a host species to meet your needs, our catalogue and custom Chimeric range provides scientists the specificity of Abcam's RabMAbs in the species backbone of your choice. Remember to also review our range of edited cell lines, proteins and biochemicals relevant to your target that may help you further your research goals.
Abcam antibodies are extensively validated in a wide range of species and applications, so please check the reagent specifications meet your scientific needs before purchasing. If you have any questions or bespoke requirements, simply visit the Contact Us page to send us an inquiry or contact our Support Team ahead of purchase.
Supplementary info
This supplementary information is collated from multiple sources and compiled automatically.
- Activity summary
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.
- Associated diseases and disorders
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.
Product promise
Tested
We have tested this species and application combination and it works. It is covered by our product promise.
Expected
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
Predicted
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
Not recommended
We do not recommend this combination. It is not covered by our product promise.
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3 product images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-IRF3 antibody (ab218160)
Immunohistochemical analysis of formalin-fixed, paraffin-embedded mouse stomach tissue labeling IRF3 with ab218160 at 1/200 dilution, followed by conjugation to the secondary antibody and DAB staining.
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-IRF3 antibody (ab218160)
Immunohistochemical analysis of formalin-fixed, paraffin-embedded Human kidney tissue labeling IRF3 with ab218160 at 1/200 dilution, followed by conjugation to the secondary antibody and DAB staining.
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-IRF3 antibody (ab218160)
Immunohistochemical analysis of formalin-fixed, paraffin-embedded Human colon carcinoma tissue labeling IRF3 with ab218160 at 1/200 dilution, followed by conjugation to the secondary antibody and DAB staining.
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