• Nature
  • Amino Acid Sequence
    • Species
    • Sequence
      A 16 amino acid (amino acids 55-70) synthetic peptide whose sequence is from the N-terminal end of the human estrogen receptor b (ERb). The sequence of this peptide is (amino to carboxy terminus): AEPQKSPWCEARSLEH
    • Amino acids
      55 to 70


Our Abpromise guarantee covers the use of ab3564 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications


  • Purity
    > 95 % SDS-PAGE.

  • Form
  • Additional notes

    This peptide may be used for neutralization and control experiments with the polyclonal antibody that reacts with this product and the ERb, catalog ab3577. Using a solution with equal weights per unit volume of peptide and corresponding antibody will yield a solution with a large molar excess of peptide that is able to competitively bind the antibody.

  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.

General Info

  • Alternative names
    • ER BETA
    • ER-beta
    • Erb
    • ESR B
    • ESR BETA
    • ESR2
    • ESR2_HUMAN
    • ESRB
    • ESTRB
    • estrogen nuclear receptor beta variant a
    • estrogen nuclear receptor beta variant b
    • Estrogen receptor 2
    • estrogen receptor 2 (ER beta)
    • Estrogen receptor beta
    • estrogen receptor beta 4
    • NR3A2
    • Nuclear receptor subfamily 3 group A member 2
    see all
  • Function
    Nuclear hormone receptor. Binds estrogens with an affinity similar to that of ESR1, and activates expression of reporter genes containing estrogen response elements (ERE) in an estrogen-dependent manner. Isoform beta-cx lacks ligand binding ability and has no or only very low ere binding activity resulting in the loss of ligand-dependent transactivation ability. DNA-binding by ESR1 and ESR2 is rapidly lost at 37 degrees Celsius in the absence of ligand while in the presence of 17 beta-estradiol and 4-hydroxy-tamoxifen loss in DNA-binding at elevated temperature is more gradual.
  • Tissue specificity
    Isoform beta-1 is 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. Also found in uterine bone, breast, and ovarian tumor cell lines, but not in colon and liver tumors. Isoform beta-2 is expressed in spleen, thymus, testis and ovary and at a lower level in skeletal muscle, prostate, colon, small intestine, leukocytes, bone marrow, mammary gland and uterus. Isoform beta-3 is found in testis. Isoform beta-4 is expressed in testis, and at a lower level in spleen, thymus, ovary, mammary gland and uterus. Isoform beta-5 is expressed in testis, placenta, skeletal muscle, spleen and leukocytes, and at a lower level in heart, lung, liver, kidney, pancreas, thymus, prostate, colon, small intestine, bone marrow, mammary gland and uterus. Not expressed in brain.
  • Sequence similarities
    Belongs to the nuclear hormone receptor family. NR3 subfamily.
    Contains 1 nuclear receptor DNA-binding domain.
  • Domain
    Composed of three domains: a modulating N-terminal domain, a DNA-binding domain and a C-terminal ligand-binding domain.
  • Cellular localization
  • Information by UniProt


This product has been referenced in:
See 1 Publication for this product

Customer reviews and Q&As


Thank you for your inquiry.

Please follow this link to find the instruction on how to use the blocking peptide:


I also attached the PDF to this email.

This protocol can also be adapted to use in IHC.

I wish you good luck with your experiments. Please feel free to contact me again with any further questions.

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