| Field | Specification |
|---|---|
| Target | |
| Alternative names | RNA-binding protein FXR1; FMR1 autosomal homolog 1; hFXR1p; FXR1 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human FXR1 recombinant protein (Position: D149-A614). |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects RNA-binding protein FXR1 in human, mouse, rat and monkey samples and is validated for Western blot, IHC, ICC/IF, flow cytometry and ELISA. The predicted molecular weight is 69.7 kDa, and the supplier reports an observed band at about 80 kDa.
FXR1 is an RNA-binding protein of the fragile X protein family, related to FMRP and FXR2. It binds target mRNAs, including AU-rich elements in 3′-UTRs, to regulate their translation and stability. FXR1 is highly expressed in muscle and testis and is studied in muscle development, spermatogenesis, neural function and cancer.
| Target | RNA-binding protein FXR1 (gene FXR1; UniProt P51114, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human, Mouse, Rat, Monkey |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 69.7 kDa |
| Observed MW | 80 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, Mouse, Rat, Monkey) |
|---|---|
| IHC (paraffin sections) | 2–5 µg/mL (Human, Mouse, Rat) |
| Immunocytochemistry / Immunofluorescence | 5 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 HEK293 cells, monkey skeletal muscle tissue, monkey heart tissue, rat heart tissue, mouse heart 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 0.5 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:5000, ECL detection.
Samples with confirmed staining (IHC): human breast cancer tissue, human lung cancer tissue, mouse brain 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 EDTA buffer (pH 8.0).
Samples with confirmed staining (ICC/IF): T47D cells.
Samples with a confirmed signal (flow cytometry): A431 cells.
Immunogen
Recombinant human FXR1 fragment (Asp149–Ala614), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human, mouse, rat and monkey. UniProt places RNA-binding protein FXR1 in the cytoplasm, cell projection, nucleus envelope and postsynapse. Tissue expression noted by UniProt (human): Expressed in all tissues examined including heart, brain, kidney and testis. 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.
Xiao-cong Liu et al. (2015) Interleukin-18 Down-Regulates Multidrug Resistance-Associated Protein 2 Expression through Farnesoid X Receptor Associated with Nuclear Factor Kappa B and Yin Yang 1 in Human Hepatoma HepG2 Cells. PLoS One. 10.1371/journal.pone.0136215
