ER alpha/NR3A1 Antibody


Immunohistochemistry-Paraffin: Estrogen Receptor alpha Antibody [NBP1-20063] - Paraffin-embedded human breast carcinoma tissue.

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ER alpha/NR3A1 Antibody Summary

Synthetic peptide corresponding to the residues surrounding Methionine 110 of human ER-a
Immunogen affinity purified
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  • Immunohistochemistry 1:10-1:500
  • Immunohistochemistry-Paraffin 1:50-1:200
Application Notes
Immunohistochemistry (IHC) analyzes of ER-a (M110) pAb in paraffin-embedded human breast carcinoma tissue.

Reactivity Notes

Cross reacts with Human, Mouse and Rat.

Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
PBS (approx. pH 7.2)
0.05% Sodium Azide
1.0 mg/ml
Immunogen affinity purified

Alternate Names for ER alpha/NR3A1 Antibody

  • ER alpha
  • ER
  • Era
  • ER-alpha
  • ESR1
  • 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


The estrogen receptor-alpha (ER) is a broadly expressed transcription factor which controls a number of genes involved in cellular differentiation and proliferation. ER contains two transcriptionally active domains: the N-terminal domain (AF1) is constitutively active, while the C-terminal domain (AF-2) is hormone-dependent. ER is subject to post-translational modification, including phosphorylation of serine residues 104, 106, 118, and 167. This antibody specifically recognizes human estrogen receptor-alpha when phosphorylated at serine 167, a site which influences AF-1 dependent transcriptional activity. This phosphorylation is catalyzed by the MAPK pathway, potentially through the 90 kDa ribosomal S6 kinase (pp90rsk1). Serine 167 is also a consensus Akt substrate.


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.

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Gene Symbol ESR1