| Field | Specification |
|---|---|
| Target | |
| Alternative names | Interferon regulatory factor 5; IRF-5; IRF5 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human IRF5 recombinant protein (Position: R98-A477). Human IRF5 shares 85.6% amino acid (aa) sequence identity with mouse IRF5. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody targets interferon regulatory factor 5 (gene IRF5) in human, mouse and rat samples and is validated for Western blot, ICC/IF, flow cytometry and ELISA. The predicted molecular weight is 56.0 kDa, and the supplier reports an observed band at about 60 kDa.
Interferon regulatory factor 5 (IRF5) is a transcription factor activated downstream of endosomal Toll-like receptors TLR7, TLR8 and TLR9 via MyD88. It induces type I interferons and inflammatory cytokines and promotes inflammatory macrophage polarization, and genetic variants of IRF5 are associated with systemic lupus erythematosus.
| Target | Interferon regulatory factor 5 (gene IRF5; UniProt Q13568, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 56.0 kDa |
| Observed MW | 60 kDa |
| Storage | As supplied: −20 °C for up to 12 months from receipt. After reconstitution: 4 °C for up to 1 month, or aliquot and keep at −20 °C for up to 6 months. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 0.25–0.5 µg/mL (Human, Mouse, Rat) |
|---|---|
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Human) |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): human HeLa cells, human A549 cells, human SH-SY5Y cells, rat PC-12 cells, rat C6 cells, mouse RAW264.7 cells, mouse NIH/3T3 cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 5–20% gradient SDS-PAGE under reducing conditions, 30 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 0.5 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:5000, ECL detection.
Samples with confirmed staining (ICC/IF): A549 cells.
Samples with a confirmed signal (flow cytometry): SH-SY5Y cells.
Immunogen
Recombinant human IRF5 fragment (Arg98–Ala477), expressed in E. coli. Sequence identity with the mouse ortholog: 85.6%.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places interferon regulatory factor 5 in the cytoplasm and nucleus. The samples tested by the supplier (listed above) are a practical starting point for positive controls.
Safety
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
