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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H, M | WB, ICC, IP | M | Purified | Monoclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | MABF268 |
| Replaces | MABF21 |
| Description | Anti-IRF3 Antibody, clone SL-12 |
| Alternate Names |
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| Background Information | Interferon regulatory factors (IRFs) comprise a family of transcription factors that function with the Jak/Stat pathway to regulate interferon (IFN) and IFN-inducible gene expression in response to viral infection. IRF-3 can inhibit cell growth and plays a critical role in controlling the expression of genes in the innate immune response. In unstimulated cells, IRF-3 is present in the cytoplasm. Viral infection results in phosphorylation of IRF-3 and leads to its translocation to the nucleus where it activates promoters containing IRF-3-binding sites. Phosphorylation of IRF-3 occurs at a cluster of C-terminal serine and threonine residues (between 385 and 405) leading to its association with the p300/CBP coactivator protein that promotes DNA binding and transcriptional activity. |
| Product Information | |
|---|---|
| Format | Purified |
| Presentation | Purified mouse monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | This Anti-IRF3 Antibody, clone SL-12 is validated for use in Western Blotting and Immunocytochemistry and Immunoprecipitation for the detection of IRF3. |
| Key Applications |
|
| Application Notes | Immunocytochemistry Analysis: A 1:50 dilution from a representative lot detected IRF3 in HeLa, A-431, HepG2, and NIH/3T3 cells. DyLight 488® is a registered trademark of Thermo Fisher Scientific. Immunoprecipitation Analysis: A representative lot immunoprecipitated IRF3 in HEC1B cells treated or untreated with virus and M059J DNA-PK - and M059J cells with DNA-PK+ (Karpova, A.Y., et al. (2002). PNAS. 99(5):2818-2823). Western Blotting Analysis: A representative lot detected IRF3 in HFK (human foreskin keratinocytes) cells expressing BPV ORFs (Ronco, L.V., et al. (1998) Genes Dev. 12:2061-2072). Western Blotting Analysis: A representative lot detected IRF3 in Transfected Mock and SeV infected 293 cells (Basler, C.F., et al. (2003) Journal of Virology. 77(14):7945-7956). Immunocytochemistry Analysis: A representative lot detected IRF3 in hec-1b cells infected with delNS1 or PR8 (Talon. J., et al. (2000). Journal of Virology. 74(17):7989-7996). Immunocytochemistry Analysis: A representative lot detected IRF3 in HEC1B cells treated or untreated with virus (Karpova, A.Y., et al. (2002). PNAS. 99(5):2818-2823). |
| Biological Information | |
|---|---|
| Immunogen | Recombinant protein corresponding to human IRF3. |
| Clone | SL-12 |
| Concentration | Please refer to lot specific datasheet. |
| Host | Mouse |
| Isotype | IgG1κ |
| Species Reactivity |
|
| Antibody Type | Monoclonal Antibody |
| Entrez Gene Number |
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| Gene Symbol |
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| Purification Method | Protein G Purified |
| UniProt Number |
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| Molecular Weight | ~49 kDa observed. IRF3 has isoforms at ~49 kDa, ~47 kDa, ~33 kDa, ~16 kDa, & ~12 kDa. |
| Product Usage Statements | |
|---|---|
| Quality Assurance | Evaluated by Western Blotting in HeLa cell lysate. Western Blotting Analysis: 1.0 µg/mL of this antibody detected IRF3 in 10 µg of HeLa cell lysate. |
| Usage Statement |
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| Storage and Shipping Information | |
|---|---|
| Storage Conditions | Stable for 1 year at 2-8°C from date of receipt. |
| Packaging Information | |
|---|---|
| Material Size | 100 µg |