| Field | Specification |
|---|---|
| Target | |
| Alternative names | Prostasin; Channel-activating protease 1; CAP1; Serine protease 8; PRSS8 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human PRSS8 recombinant protein (Position: Q59-R322). |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody targets prostasin (gene PRSS8) in human samples and is validated for Western blot, flow cytometry and ELISA. The predicted molecular weight is 36.4 kDa, and the supplier reports an observed band at about 38 kDa.
Prostasin (PRSS8) is a GPI-anchored, trypsin-like serine protease expressed in epithelia of the kidney, lung, colon and skin. It activates the epithelial sodium channel ENaC by cleaving its γ subunit and takes part in a protease network that maintains epidermal barrier function, so it is studied in sodium balance and epithelial biology.
| Target | Prostasin (gene PRSS8; UniProt Q16651, 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 | 36.4 kDa |
| Observed MW | 38 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) |
|---|---|
| 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 Caco-2 cells, human MCF-7 cells, human placenta tissue.
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 a confirmed signal (flow cytometry): MCF-7 cells.
Immunogen
Recombinant human PRSS8 fragment (Gln59–Arg322), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human. UniProt places prostasin in the [Prostasin]: Cell membrane. Tissue expression noted by UniProt (human): Found in prostate, liver, salivary gland, kidney, lung, pancreas, colon, bronchus and renal proximal tubular cells. 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.
