| Field | Specification |
|---|---|
| Target | |
| Alternative names | Serine/arginine-rich splicing factor 3;Pre-mRNA-splicing factor SRP20;Splicing factor, arginine/serine-rich 3;SRSF3;SFRS3, SRP20; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the N-terminus of human SFRS3, 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 targets serine/arginine-rich splicing factor 3 (gene SRSF3) in human samples and is validated for flow cytometry, ICC/IF and Western blot. The predicted molecular weight is 19.3 kDa, and the supplier reports an observed band at about 19 kDa.
Serine/arginine-rich splicing factor 3 (SRSF3, also called SRp20) is one of the smallest SR proteins. It binds exonic motifs to promote inclusion of specific exons, can be recruited near m6A-modified sites through YTHDC1, and also acts as an adapter for nuclear export of mRNA.
| Target | Serine/arginine-rich splicing factor 3 (gene SRSF3; UniProt P84103, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.01 mg NaN3; plus stabilizers |
| Calculated MW | 19.3 kDa |
| Observed MW | 19 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 (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 SH-SY5Y cells, human 293T cells, human HepG2 cells, human SiHa 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 (ICC/IF): A549 cells.
Samples with a confirmed signal (flow cytometry): SH-SY5Y cells.
Immunogen
Synthetic peptide from the N-terminal region of human SFRS3. The peptide sequence is conserved in mouse and rat.
Reactivity Notes
The supplier lists reactivity with human. UniProt places serine/arginine-rich splicing factor 3 in the nucleus, nucleus speckle and cytoplasm. 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.
