| Field | Specification |
|---|---|
| Mfr No | |
| Clonality | |
| Host | |
| Immunogen | E.coli-derived human RPAP3 recombinant protein (Position: R84-E604) was used as the immunogen for the RPAP3 antibody. |
| Isotype | |
| Product Type | |
| Purity | |
| Reactivity | |
| Storage | |
| Target | |
| UniProt # |
Overview
RPAP3 Antibody / RNA polymerase II-associated protein 3 is a anti-RPAP3 Rabbit antibody Polyclonal (rabbit origin) supplied in Lyophilized format. Recommended for workflows such as Western blot (WB), ELISA with listed reactivity in Human, Mouse, Rat.
Key elements and design rationale
- Target: RPAP3
- Antibody details: Rabbit, Polyclonal (rabbit origin), isotype Rabbit IgG
- Format: Lyophilized
- Applications (as listed): WB, ELISA
Biological background
Structurally, RPAP3 is a ~75 kDa protein with multiple tetratricopeptide repeat (TPR) domains, which mediate protein-protein interactions. These domains allow RPAP3 to bridge HSP90 and PIH1D1, central elements of the R2TP complex. Its N-terminal domain anchors it to the cochaperone machinery, while its C-terminal region facilitates substrate recognition and client protein assembly.
Functionally, RPAP3 stabilizes RNA polymerase II subunits, enabling proper transcriptional initiation and elongation. It also regulates assembly of snoRNPs, which support ribosomal RNA modification, and PIKKs, which are central to DNA damage response, nutrient sensing, and stress signaling. Researchers use RPAP3 antibody to explore protein complex maturation, transcriptional regulation, and chaperone pathways.
Clinically, RPAP3 dysregulation has been linked to cancer progression. Because it stabilizes oncogenic PIKKs such as mTOR, ATR, and ATM, RPAP3 supports tumor growth and therapy resistance. Its expression patterns may serve as biomarkers for prognosis and treatment response.
Experimentally, RPAP3 antibody is applied in western blotting to detect the ~75 kDa protein, in immunoprecipitation to study R2TP complex partners, and in immunofluorescence microscopy to visualize nuclear and cytoplasmic distribution. Chromatin immunoprecipitation using RPAP3 antibody helps examine transcriptional regulation via RNA polymerase II stabilization.
Research relevance and current trends
- Connecting protein-level changes to phenotype using orthogonal readouts (genetic perturbation, transcriptomics, imaging).
- Considering isoforms and post-translational regulation when interpreting protein-level changes.
- Comparing results across species and model systems with matched controls.
Common research applications
- Western blotting: compare relative abundance and activation-state changes across conditions.
- ELISA: support antibody-based quantification in assay formats where applicable.
Interpret changes in signal alongside appropriate controls and, when relevant, in parallel with total-protein or pathway readouts.
Notes for experimental interpretation
- Signal can reflect expression level, isoform composition, and post-translational state; interpret results in the context of your model system and stimuli.
- Species differences and sample matrices can influence epitope recognition; prioritize matched controls and orthogonal confirmation when feasible.
Antibody notes: Polyclonal antibodies recognize multiple epitopes, which can broaden the epitope footprint and may increase sensitivity in some contexts.
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.
