ER alpha/NR3A1 Antibody (585112)

ER alpha /NR3A1 was detected in immersion fixed PC‑3 human prostate cancer cell line using Mouse Anti-Human ER alpha /NR3A1 Monoclonal Antibody (Catalog # MAB5715) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the Northern­Lights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red, upper panel; Catalog # NL007) and counter­stained with DAPI (blue, lower panel). Specific staining was localized to nuclei. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

• Reactivity: Hu
• Applications: ICC/IF
• Clone: 585112
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Unconjugated
• Concentration: LYOPH

ER alpha/NR3A1 Antibody (585112) Summary

• Immunogen: E. coli-derived recombinant human ER alpha /NR3A1
  Met1-Ser116 (predicted)
  Accession # P03372
• Specificity: Detects human ER alpha /NR3A1 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant ER beta /NR3A2 is observed.
• Source: N/A
• Isotype: IgG3
• Clonality: Monoclonal
• Host: Mouse
• Gene: ESR1
• Purity: Protein A or G purified from hybridoma culture supernatant

Applications/Dilutions

• Dilutions:
  • Immunocytochemistry 8-25 ug/mL

Packaging, Storage & Formulations

• Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
• Buffer: Lyophilized from a 0.2 μm filtered solution in TBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
• Preservative: No Preservative
• Concentration: LYOPH
• Purity: Protein A or G purified from hybridoma culture supernatant
• Reconstitution Instructions: Sterile PBS to a final concentration of 0.5 mg/mL.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for ER alpha/NR3A1 Antibody (585112)

• ER alpha
• ER
• Era
• ER-alpha
• ESR1
• ESRESRA
• Estradiol receptor
• estrogen receptor 1
• estrogen receptor alpha delta 3*4,56,7*/819-2 isoform
• estrogen receptor alpha delta 4 +49 isoform
• estrogen receptor alpha delta 4*5,6,7*/654 isoform
• estrogen receptor alpha
• estrogen receptor
• NR3A1
• NR3A1DKFZp686N23123
• Nuclear receptor subfamily 3 group A member 1

Background

ER alpha (Estrogen receptor alpha; also Estradiol receptor and NR3A1) is a 65-70 kDa member of the NR3 subfamily, nuclear hormone receptor family of proteins. It is widely expressed, and serves as a strong activator of estrogen-responsive genes. ER alpha is normally quiescent and bound to heat-shock proteins and immunophilins. Following beta -estradiol binding, it becomes activated, either homodimerizes or heterodimerizes with ER beta, and binds to DNA with multiple coactivators. Human ER alpha is 595 amino acids (aa) in length.  It contains a DNA binding region (aa 185-250), three NLSs (aa 256-260; 266-271; 299-303), a steroid-binding site (aa 351-543), a dimerization motif (aa 497-518), and an O-GlcNAc attachment around Thr575. Major phosphorylation sites exist at Tyr537, Ser167 and Ser118. Multiple splice forms exist. There is an 80 kDa isoform that shows a substitution (duplication) of aa 412-517 for Asp411, a second isoform with a deletion of aa 255-366, a third isoform with a deletion of aa 152-412, and a fourth isoform that shows a Thr substitution for aa 152-595. Human ER alpha is only 46% aa identical to human ER beta. Over aa 1-116, human ER alpha shares 85% aa identity with mouse ER alpha.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: ESR1
• Uniprot:
  • P03372()