ER alpha/NR3A1 Antibody (681104) [Alexa Fluor® 532]

• Reactivity: Hu
• Applications: IHC
• Clone: 681104
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Alexa Fluor 532

ER alpha/NR3A1 Antibody (681104) [Alexa Fluor® 532] Summary

• Immunogen: E. coli-derived recombinant human ERα/NR3A1
  Thr2-Gln116
  Accession # P03372
• Specificity: Detects human ER alpha /NR3A1 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human ER beta is observed.
• Isotype: IgG2b
• Clonality: Monoclonal
• Host: Mouse
• Gene: ESR1
• Purity Statement: Protein A or G purified

Applications/Dilutions

• Dilutions:
  • Immunohistochemistry

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

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

Alternate Names for ER alpha/NR3A1 Antibody (681104) [Alexa Fluor® 532]

• 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