| Field | Specification |
|---|---|
| Target | |
| Alternative names | RNA polymerase I-specific transcription initiation factor RRN3; Transcription initiation factor IA; TIF-IA; RRN3; TIFIA |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human RRN3 recombinant protein (Position: D184-L651). Human RRN3 shares 87.4% amino acid (aa) sequence identity with mouse RRN3. |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes RNA polymerase I-specific transcription initiation factor RRN3 in human samples and is validated for Western blot, flow cytometry and ELISA.
RRN3 (also called TIF-IA) is an RNA polymerase I–associated factor needed for transcription initiation of ribosomal RNA genes. It links Pol I to the promoter-bound SL1 complex, and its activity is regulated by growth and stress signals, making it a control point for ribosome production.
| Target | RNA polymerase I-specific transcription initiation factor RRN3 (gene RRN3; UniProt Q9NYV6, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / IgG |
| Reactivity | Human |
| 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 | 0.25–0.5 µg/mL (Human) |
|---|---|
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
| ELISA | 0.1–0.5 µg/mL |
Immunogen
Recombinant human RRN3 fragment (Asp184–Leu651), expressed in E. coli. Sequence identity with the mouse ortholog: 87.4%.
Reactivity Notes
The supplier lists reactivity with human. UniProt places RNA polymerase I-specific transcription initiation factor RRN3 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.
