| Field | Specification |
|---|---|
| Target | |
| Alternative names | DNA-directed RNA polymerase III subunit RPC4; RNA polymerase III subunit C4; DNA-directed RNA polymerase III subunit D; Protein BN51; RNA polymerase III 47 kDa subunit; RPC53 homolog; POLR3D; BN51; BN51T |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human POLR3D recombinant protein (Position: K231-L360). Human POLR3D shares 92.3% amino acid (aa) sequence identity with mouse POLR3D. |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes DNA-directed RNA polymerase III subunit RPC4 (gene POLR3D) in human and rat samples and is validated for Western blot, IHC, ICC/IF, flow cytometry and ELISA.
POLR3D (RPC4) is a subunit specific to RNA polymerase III, which makes tRNAs, 5S rRNA and other small non-coding RNAs. With POLR3E it helps recruit Pol III to promoters and supports transcription termination and reinitiation. Pol III can also sense foreign cytosolic DNA and trigger type I interferon responses via RIG-I.
| Target | DNA-directed RNA polymerase III subunit RPC4 (gene POLR3D; UniProt P05423, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / IgG |
| Reactivity | Human, Rat |
| Purification | Immunogen affinity purified |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Reconstitution | 500 µg/mL after adding 0.2 mL distilled water |
| 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 | 0.1–0.25 µg/mL (Human, Rat) |
|---|---|
| IHC (paraffin sections) | 2–5 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 |
Conditions in the example images (IHC): heat-mediated antigen retrieval in EDTA buffer (pH 8.0).
Immunogen
Recombinant human POLR3D fragment (Lys231–Leu360), expressed in E. coli. Sequence identity with the mouse ortholog: 92.3%.
Reactivity Notes
The supplier lists reactivity with human and rat. UniProt places DNA-directed RNA polymerase III subunit RPC4 in the nucleus.
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.
