| Field | Specification |
|---|---|
| Target | |
| Alternative names | Serpin B8; Cytoplasmic antiproteinase 2; CAP-2; CAP2; Peptidase inhibitor 8; PI-8; SERPINB8; PI8 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human SERPINB8 recombinant protein (Position: E173-K316). Human SERPINB8 shares 80.4% amino acid (aa) sequence identity with mouse SERPINB8. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes serpin B8 (gene SERPINB8) in human samples and is validated for Western blot, ICC/IF, flow cytometry and ELISA. The predicted molecular weight is 42.8 kDa, and the supplier reports an observed band at about 48 kDa.
Serpin B8 (SERPINB8, also called PI-8) is an intracellular clade B serpin. It supports desmosome-based adhesion between epithelial cells, and its loss causes peeling skin in humans, linking it to epidermal integrity.
| Target | Serpin B8 (gene SERPINB8; UniProt P50452, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 42.8 kDa |
| Observed MW | 48 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) |
|---|---|
| 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 Jurkat 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): Jurkat cells.
Immunogen
Recombinant human SERPINB8 fragment (Glu173–Lys316), expressed in E. coli. Sequence identity with the mouse ortholog: 80.4%.
Reactivity Notes
The supplier lists reactivity with human. UniProt places serpin B8 in the cytoplasm. 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.
