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- Table of Contents
IRF3 antibody (A00165-4) performs well in ELISA, Flow Cytometry, IHC, WB and shows reactivity with Human.
- Validated for inter-lot consistency, specificity, and reproducibility
- Committed to quality since 1993
- Over 1 Publication
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Flow Cytometry analysis of CACO-2 cells using anti-IRF3 antibody (A00165-4).
Overlay histogram showing CACO-2 cells stained with A00165-4 (Blue line).To facilitate intracellular staining, cells were fixed with 4% paraformaldehyde and permeabilized with permeabilization buffer. The cells were blocked with 10% normal goat serum. And then incubated with rabbit anti-IRF3 Antibody (A00165-4, 1μg/1x106 cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-rabbit IgG (BA1127, 5-10μg/1x106 cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was rabbit IgG (1μg/1x106) used under the same conditions. Unlabelled sample without incubation with primary antibody and secondary antibody (Red line) was used as a blank control.
Overlay histogram showing CACO-2 cells stained with A00165-4 (Blue line).To facilitate intracellular staining, cells were fixed with 4% paraformaldehyde and permeabilized with permeabilization buffer. The cells were blocked with 10% normal goat serum. And then incubated with rabbit anti-IRF3 Antibody (A00165-4, 1μg/1x106 cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-rabbit IgG (BA1127, 5-10μg/1x106 cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was rabbit IgG (1μg/1x106) used under the same conditions. Unlabelled sample without incubation with primary antibody and secondary antibody (Red line) was used as a blank control.
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Anti-IRF3 Antibody Picoband®
IRF3 antibody
| Reactive Species | Host | Application |
|---|---|---|
| Human | Rabbit | ELISA, Flow Cytometry, IHC, WB |
Tested Applications
IRF3 antibody was positively detected by WB in:
human PC-3 whole cell,
Suggested blocking solution with 5% non-fat milk or BSA; (*)Recommended protein loading: 20-40 ug per lane
IRF3 antibody was positively detected by IHC in:
human lung cancer tissue, human mammary cancer tissue, human rectal cancer tissue
Use TE buffer pH 9.0 for antigen retrieval; (*) citrate buffer pH 6.0 is an alternative.
IRF3 antibody was positively detected by FC in:
CACO-2 cell, K562 cell
Recommend Dilution
Application
Dilution
Species
Western blot
0.25-0.5μg/ml
Human
Immunohistochemistry (Paraffin-embedded Section)
2-5μg/ml
Human
Flow Cytometry (Fixed)
1-3μg/1x106 cells
Human
ELISA
0.1-0.5μg/ml
-
* It is recommended to optimize the amount of this reagent in each experimental system to achieve the best results.
Note: For flow cytometry (FCM), suitable for fixed cells only. Not suitable for FACS or surface flow cytometry using live cells.
Reactive Data
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WB
IHC
IF
ELISA
Human
Tested
Tested
Recommend
Recommend
Monkey
Predicted
Predicted
Predicted
Predicted
Product Information
Product Name
Anti-IRF3 Antibody Picoband®
View all IRF3 Antibodies
View all IRF3 Antibodies
Form
Lyophilized
Uniprot
Gene ID
Storage & Handling
Store at -20˚C for one year from date of receipt. After reconstitution, at 4˚C for one month. It can also be aliquotted and stored frozen at -20˚C for six months. Avoid repeated freeze-thaw cycles.
Host
Rabbit
Contents
Each vial contains 4mg Trehalose, 0.9mg NaCl, 0.2mg Na2HPO4, 0.01mg NaN3.
Clonality
Polyclonal
Isotype
Rabbit IgG
Immunogen
E.coli-derived human IRF3 recombinant protein (Position: K5-Q422).
Cross-Reactivity
No cross-reactivity with other proteins.
Reconstitution
Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
Observed Molecular Weight
55 kDa
Calculated Molecular Weight
47.2 kDa
Background of IRF3
IRF3 (interferon regulatory factor 3) is a member of the interferon regulatory transcription factor (IRF) family. The IRF3 gene is mapped on 19q13.33. IRF3 is found in an inactive cytoplasmic form that upon serine/threonine phosphorylation forms a complex with CREBBP. IRF3 plays an important role in the innate immune system's response to viral infection. Aggregated MAVS have been found to activate IRF3 dimerization. Although IRF3 increased transcriptional activity from an ISRE-containing promoter, expression of IRF3 as a Gal4 fusion protein did not activate expression of a chloramphenicol acetyltransferase (CAT) reporter gene containing repeats of the Gal4-binding sites. Translocation of IRF3 was accompanied by an increase in serine and threonine phosphorylation. The transcriptional activators CREBBP and EP300 coimmunoprecipitated with IRF3 only subsequent to viral infection, and the authors stated that these are also subunits of DRAF1.
Cite This Product
Anti-IRF3 Antibody Picoband® (Boster Biological Technology, Pleasanton CA, USA, Catalog # A00165-4)
Antibody Homology Across Species
The results generated by this homology analysis tool for commonly used animal species are shown below. For unlisted species, please refer to the homology analysis between the immunogen sequence and the corresponding species.
A homology of ≥90% is recommended. Generally, higher homology indicates a greater potential for cross-species reactivity. However, protein expression levels may vary among different species, tissues, and cell types. Therefore, the homology analysis results are for reference only and do not guarantee antibody cross-reactivity or experimental performance.
Human
100%
High Homology
Monkey
94%
High Homology
Dog
78%
Moderate Homology
Sheep
77%
Moderate Homology
Cow
76%
Moderate Homology
Rat
74%
Moderate Homology
Mouse
71%
Moderate Homology
Zebrafish
33%
Low homology
Homology ≥ 90%High Homology
70% ≤ Homology < 90%Moderate Homology
Homology < 70%Low homology
Protocols
Western Blot protocol for IRF3 antibody
Immunohistochemistry (IHC) protocol for IRF3 antibody
Flow Cytometry (FC) protocol for IRF3 antibody
Publications
Application:
Species:
Evolutionarily conserved Otub1 suppresses antiviral immune response by promoting Irf3 proteasomal degradation in miiuy croaker, Miichthys miiuy
Published: 2024-06-22
Journal: DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
Application: WB
Impact Factor: 2.70
Species: Fish
PMID: 38914152
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Product Promise
We promise Anti-IRF3 Antibody Picoband® performs excellently in relevant applications for ELISA, Flow Cytometry, IHC, WB. If it doesn't perform as promised, we will refund the product. Learn more
In stock
Order Product
A00165-4
Buy one primary antibody get one 0.5ml HRP or Biotin secondary antibody for free.
*Sample sizes are prepared on demand and will take extra lead time. (cannot be conjugated)
$370.00
Troubleshooting
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We promise all of our products perform as described in datasheets.
This product is for Research Use Only. Not for use in diagnostic procedures.
Update date:
Oct 6, 2026