| Field | Specification |
|---|---|
| Target | |
| Alternative names | Polymeric immunoglobulin receptor;PIgR;Poly-Ig receptor;Hepatocellular carcinoma-associated protein TB6;Secretory component;PIGR; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human PIGR, different from the related rat sequence by eighteen amino acids. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects polymeric immunoglobulin receptor (gene PIGR) in human and mouse samples and is validated for flow cytometry and Western blot. The predicted molecular weight is 83.3 kDa, and the supplier reports an observed band at about 85 kDa.
The polymeric immunoglobulin receptor (pIgR) carries dimeric IgA and pentameric IgM across mucosal epithelial cells from the basolateral to the apical side. At the surface its extracellular part is cleaved to form secretory component, which stays bound to the antibody and protects it, so pIgR is central to research on mucosal immunity in the gut, airways and glands.
| Target | Polymeric immunoglobulin receptor (gene PIGR; UniProt P01833, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human, Mouse |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 83.3 kDa |
| Observed MW | 85 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) |
|---|---|
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
Samples with a confirmed band (WB): human A431 cells, human SH-SY5Y cells, human RT4 cells, human CT26WT 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.
Samples with a confirmed signal (flow cytometry): SH-SY5Y cells.
Immunogen
Synthetic peptide from the C-terminal region of human PIGR. It differs from the rat sequence at eighteen residues.
Reactivity Notes
The supplier lists reactivity with human and mouse. 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.
