| Field | Specification |
|---|---|
| Target | |
| Alternative names | Splicing factor 3A subunit 2; SF3a66; Spliceosome-associated protein 62; SAP 62; SF3A2; SAP62 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human SF3A2 recombinant protein (Position: R29-P256). |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects splicing factor 3A subunit 2 (gene SF3A2) in human, mouse and rat samples and is validated for Western blot, IHC, ICC/IF, flow cytometry, immunoprecipitation and ELISA. The predicted molecular weight is 49.3 kDa, and the supplier reports an observed band at about 66 kDa.
Splicing factor 3A subunit 2 (SF3A2, SF3a66) is a subunit of the SF3a complex, part of the U2 snRNP. SF3a helps tether U2 snRNP to pre-mRNA and supports recognition of the intron branch site during early spliceosome assembly, a central step in removing introns.
| Target | Splicing factor 3A subunit 2 (gene SF3A2; UniProt Q15428, 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 |
| Calculated MW | 49.3 kDa |
| Observed MW | 66 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 | 0.1–0.25 µg/mL (Human, Mouse, Rat) |
|---|---|
| IHC (paraffin sections) | 2–5 µg/mL (Human) |
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Human) |
| Immunoprecipitation | 0.5–2 µg/mL (Human) |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): human HeLa cells, human HepG2 cells, human A549 cells, human SH-SY5Y cells, rat thymus tissue, rat ovary tissue, mouse thymus tissue, mouse ovary tissue.
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 0.25 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:5000, ECL detection.
Samples with confirmed staining (IHC): human liver cancer tissue, human lung adenocarcinoma tissue, human placenta tissue, human rectum adenocarcinoma tissue, human testicular seminoma tissue, human tonsil tissue, human urothelial carcinoma 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): U2OS cells.
Samples with a confirmed result (IP): SH-SY5Y cells.
Samples with a confirmed signal (flow cytometry): SiHa cells.
Immunogen
Recombinant human SF3A2 fragment (Arg29–Pro256), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places splicing factor 3A subunit 2 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.
