| Field | Specification |
|---|---|
| Target | |
| Alternative names | Estrogen receptor beta;ER-beta;Nuclear receptor subfamily 3 group A member 2;ESR2;ESTRB, NR3A2; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the N-terminus of human Estrogen Receptor beta, different from the related rat and mouse sequences by four amino acids. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes estrogen receptor beta (gene ESR2) in human samples and is validated for Western blot. The predicted molecular weight is 59.2 kDa, and the supplier reports an observed band at about 65 kDa.
Estrogen receptor beta (ESR2, ERβ) is a nuclear hormone receptor that binds estrogens with an affinity similar to ERα and activates genes containing estrogen response elements. It has a distinct tissue distribution, including the ovary, prostate and brain, and often opposes ERα-driven proliferation. Several splice isoforms exist with different activities.
| Target | Estrogen receptor beta (gene ESR2; UniProt Q92731, 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; 0.05 mg NaN3 |
| Calculated MW | 59.2 kDa |
| Observed MW | 65 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) |
|---|
Samples with a confirmed band (WB): MCF-7 cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Immunogen
Synthetic peptide from the N-terminal region of human estrogen Receptor beta. It differs from the rat and mouse sequences at four residues.
Reactivity Notes
The supplier lists reactivity with human. UniProt places estrogen receptor beta in the nucleus. Tissue expression noted by UniProt (human): Expressed in testis and ovary, and at a lower level in heart, brain, placenta, liver, skeletal muscle, spleen, thymus, prostate, colon, bone marrow, mammary gland and uterus. 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.
