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You are here:Home » Antibodies » Antibodies-Receptors, Estrogen » Anti -Estrogen Receptor, beta (ERb, ER-beta, Nuclear Receptor Subfamily 3 Group A Member 2, ESR2, ESTRB, NR3A2)

Anti -Estrogen Receptor, beta (ERb, ER-beta, Nuclear Receptor Subfamily 3 Group A Member
2, ESR2, ESTRB, NR3A2)


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Clone Host Grade Applications
Polyclonal Rabbit Affinity Purified B
Estrogen receptor-beta, referred to as ESR2, is a member of the superfamily of nuclear receptors, which can transduce extracellular signals into transcriptional responses. This gene is mapped to 14q and comprises 8 exons spanning approximately 40kb. ESR2 is expressed in multiple tissues, including developing spermatids of the testis and in ovarian granulosa cells. ESR-beta is homologous to the previously identified ESR-alpha and has an overlapping but nonidentical tissue distribution. The DNA-binding domain of ESR-beta is 96% conserved compared to ESR, and the ligand-binding domain shows 58% conserved residues. ESR-beta is expressed in human thymus, spleen, ovary, and testis. Rat ESR-beta is expressed in rat prostate and ovary and is homologous to rat ESR (95% conserved DNA-binding domain; 55% conserved ligand-binding domain). ESR2 mRNA was coexpressed with ESR1 and its splice variants in 60% of prolactinomas, 100% of mixed growth hormone /prolactin tumors, and 29% of gonadotroph tumors. ESR2 gene expression was not limited to ESR1-positive tumor subtypes, however, and was also found in 100% of null cell tumors, 80% of somatotroph tumors, and 60% of corticotroph tumors.
Catalog #E3558-40B
ApplicationsSuitable for use in Western Blot. Other applications not tested.
Recommended DilutionWestern Blot: 0.5-1ug/ml
Optimal dilutions to be determined by the researcher.
Storage and StabilityLyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile dH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Clone TypePolyclonal
ConcentrationAs reported
FormSupplied as a lyophilized powder from PBS, pH 7.4, 5% BSA, 0.05% thimerosal, 0.05% sodium azide. Reconstitute with sterile dH2O.
PurityPurified by immunoaffinity chromatography.
ImmunogenSynthetic peptide mapping at the N-terminal of human ER beta, different from the related mouse sequence by four amino acids.
SpecificityRecognizes human ERb. Species Cross-Reactivity: mouse, rat.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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