| Field | Specification |
|---|---|
| Target | |
| Alternative names | Ribosome biogenesis regulatory protein homolog; RRS1; KIAA0112; RRR |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human RRS1, which shares 95.5% and 100% amino acid (aa) sequence identity with mouse and rat RRS1, respectively. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody targets ribosome biogenesis regulatory protein homolog (gene RRS1) in human samples and is validated for Western blot, IHC, ICC/IF and flow cytometry. The predicted molecular weight is 41.2 kDa, and the supplier reports an observed band at about 41 kDa.
RRS1 is a nucleolar protein involved in assembly of the large 60S ribosomal subunit. It has been reported to help deliver the 5S ribonucleoprotein particle to the nucleolus and to play a role in chromosome congression during mitosis.
| Target | Ribosome biogenesis regulatory protein homolog (gene RRS1; UniProt Q15050, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 41.2 kDa |
| Observed MW | 41 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) |
|---|---|
| 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) |
Samples with a confirmed band (WB): human PC-3 cells, human HeLa cells, human MCF-7 cells, human K562 cells, human 293T cells, human U251 cells, human Daudi cells, human MOLT-4 cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 5–20% gradient 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 colorectal adenocarcinoma tissue, human cervical cancer tissue, human esophageal squamous carcinoma tissue, human liver cancer tissue, human ovarian 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): PC-3 cells.
Samples with confirmed staining (ICC/IF): human colon cancer tissue.
Samples with a confirmed signal (flow cytometry): HEL cells.
Immunogen
Synthetic peptide from the C-terminal region of human RRS1. Sequence identity with the mouse and rat orthologs: 95.5% and 100%, respectively.
Reactivity Notes
The supplier lists reactivity with human. UniProt places ribosome biogenesis regulatory protein homolog 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.
