| Field | Specification |
|---|---|
| Target | |
| Alternative names | DNA-directed RNA polymerases I, II, and III subunit RPABC3; RNA polymerases I, II, and III subunit ABC3; DNA-directed RNA polymerase II subunit H; DNA-directed RNA polymerases I, II, and III 17.1 kDa polypeptide; RPB17; RPB8 homolog; hRPB8; POLR2H |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human POLR2H recombinant protein (Position: D38-F150). |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects DNA-directed RNA polymerases I, II, and III subunit RPABC3 (gene POLR2H) in human, mouse and rat samples and is validated for Western blot, IHC, ICC/IF, immunoprecipitation and ELISA. The predicted molecular weight is 17.1 kDa, and the supplier reports an observed band at about 17 kDa.
POLR2H (RPABC3) is a small subunit shared by RNA polymerases I, II and III, which together produce ribosomal RNA, messenger RNA precursors and small RNAs such as tRNAs. It contributes to the structure of the polymerase core and is studied in general transcription.
| Target | DNA-directed RNA polymerases I, II, and III subunit RPABC3 (gene POLR2H; UniProt P52434, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 17.1 kDa |
| Observed MW | 17 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) |
|---|---|
| IHC (paraffin sections) | 2–5 µg/mL (Human) |
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Human) |
| Immunoprecipitation | 0.5–2 µg/mL (Human) |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): human 293T cells, human HeLa cells, human MCF-7 cells, rat liver tissue, rat RH35 cells, mouse liver tissue, mouse HEPA1–6 cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 12% 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 (IHC): human lung cancer tissue.
Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.
Conditions in the example images (IHC): heat-mediated antigen retrieval in EDTA buffer (pH 8.0).
Samples with confirmed staining (ICC/IF): HeLa cells.
Samples with confirmed staining (ICC/IF): human lung cancer tissue.
Samples with a confirmed result (IP): MCF-7 cells.
Immunogen
Recombinant human POLR2H fragment (Asp38–Phe150), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places DNA-directed RNA polymerases I, II, and III subunit RPABC3 in the 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.
