| Field | Specification |
|---|---|
| Target | |
| Alternative names | 40S ribosomal protein S3 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the N-terminus of human RPS3, identical to the related mouse and rat sequences. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects small ribosomal subunit protein uS3 (gene RPS3) in human, mouse and rat samples and is validated for flow cytometry, ICC/IF, IHC and Western blot. The predicted molecular weight is 26.7 kDa, and the supplier reports an observed band at about 31 kDa.
RPS3 (uS3) is a small-subunit ribosomal protein that also has functions outside the ribosome. It shows DNA repair–related endonuclease activity and binds 8-oxoguanine lesions, and it can join NF-κB complexes to help select target genes, so it is studied in translation, DNA repair and immune signaling.
| Target | Small ribosomal subunit protein uS3 (gene RPS3; UniProt P23396, 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; 0.05 mg NaN3 |
| Calculated MW | 26.7 kDa |
| Observed MW | 31 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 | 0.1–0.5 µg/mL |
|---|---|
| IHC (paraffin sections) | 0.5–1 µg/mL |
| Immunocytochemistry / Immunofluorescence | 2 µg/mL |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells |
Samples with a confirmed band (WB): human Caco-2 cells, human U2OS cells, human MCF-7 cells, rat brain tissue, rat liver tissue, mouse brain tissue, mouse liver tissue.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 10% 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 tonsil tissue, human placenta tissue, mouse brain tissue, mouse intestine tissue, rat brain 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 citrate buffer (pH 6).
Immunogen
Synthetic peptide from the N-terminal region of human RPS3. The peptide sequence is conserved in mouse and rat.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places small ribosomal subunit protein uS3 in the cytoplasm, nucleus and mitochondrion inner membrane. 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.
