| Field | Specification |
|---|---|
| Target | |
| Alternative names | NF-kappa-B inhibitor alpha;I-kappa-B-alpha;IkB-alpha;IkappaBalpha;Major histocompatibility complex enhancer-binding protein MAD3;NFKBIA;IKBA, MAD3, NFKBI; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human IKB alpha recombinant protein (Position: Q3-Q112). Human IKB alpha shares 87% and 86% amino acid (aa) sequence identity with mouse and rat IKB alpha, respectively. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody targets NF-kappa-B inhibitor alpha (gene NFKBIA) in human samples and is validated for Western blot. The predicted molecular weight is 35.6 kDa, and the supplier reports an observed band at about 39 kDa.
IκBα (NFKBIA) holds NF-κB dimers such as p65/p50 in the cytoplasm by hiding the signals they need for nuclear import. When inflammatory stimuli activate the IKK complex, IκBα is phosphorylated and degraded, releasing NF-κB into the nucleus, so its phosphorylation and loss are standard readouts of NF-κB activation.
| Target | NF-kappa-B inhibitor alpha (gene NFKBIA; UniProt P25963, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 35.6 kDa |
| Observed MW | 39 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 | 0.1–0.5 µg/mL (Human) |
|---|
Samples with a confirmed band (WB): human HeLa cells, human Raji cells, human PC-3 cells, human Jurkat cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 10% 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.
Immunogen
Recombinant human IKB alpha fragment (Gln3–Gln112), expressed in E. coli. Sequence identity with the mouse and rat orthologs: 87% and 86%, respectively.
Reactivity Notes
The supplier lists reactivity with human. UniProt places NF-kappa-B inhibitor alpha 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.
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