- Tel: 858.663.9055
-
Email: info@nsjbio.com
- Tel: 858.663.9055
- Email: info@nsjbio.com
Related Products
|
Estrogen receptor alpha (ESR1) is a ligand-activated nuclear hormone receptor that regulates gene transcription in response to estrogen signaling. ESR1 plays a central role in the development and function of reproductive tissues and is a key driver of hormone-dependent gene expression in breast epithelial cells. Upon binding estrogen, ESR1 undergoes conformational changes that promote dimerization, nuclear localization, and interaction with estrogen response elements in target genes. This signaling pathway controls cellular proliferation, differentiation, and survival, particularly in hormone-responsive tissues.
Estrogen Receptor alpha antibody, also referred to as ESR1 antibody, ER alpha antibody, and ERa antibody in the literature, recognizes a nuclear receptor that is widely used as a biomarker in breast cancer research. ESR1 expression is a defining feature of many breast tumors, where it is used to classify hormone receptor status and guide therapeutic strategies. Detection of ESR1 is therefore critical for studying tumor biology, endocrine responsiveness, and mechanisms of resistance to hormone-based therapies.
This Estrogen Receptor alpha Antibody for FACS / Hormone Receptor and Breast Cancer Marker Antibody (clone ESR1/3559) is uniquely positioned for intracellular flow cytometry applications. Because ESR1 is a nuclear protein, detection by flow cytometry requires fixation and permeabilization to allow antibody access to intracellular compartments. In this context, ESR1 antibody enables analysis of receptor expression at the single-cell level, supporting studies of heterogeneous cell populations, tumor subpopulations, and hormone-responsive signaling dynamics. This approach is particularly useful in breast cancer models where ESR1 expression may vary across cell states or treatment conditions.
In addition to flow cytometry, ESR1 expression can be observed in tissue-based and protein analysis studies, where it typically shows nuclear localization in epithelial and tumor cells. These expression patterns align with the receptorâs role as a transcription factor and provide complementary validation across different experimental systems. The ability to detect ESR1 across multiple assay types supports integrated analysis of receptor expression and function.
Microarray validation of clone ESR1/3559 supports its specificity for the ESR1 protein, providing confidence in target recognition across a wide range of proteins. As a mouse monoclonal antibody, clone ESR1/3559 offers reproducible performance for detecting Estrogen receptor alpha in research applications. An Estrogen Receptor alpha antibody is suitable for detecting ESR1 expression in flow cytometry, cancer biology studies, and investigations of hormone receptor signaling.
For comprehensive detection of Estrogen receptor alpha across hormone signaling and breast cancer studies, see our Estrogen Receptor alpha antibody (clone ESR1/3557).
Optimal dilution of the Estrogen Receptor alpha Antibody FACS Intracellular Detection should be determined by the researcher.
A recombinant human partial protein (amino acids 129-312) was used as the immunogen for this Estrogen Receptor alpha antibody.
Store the Estrogen Receptor alpha antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).
Estrogen receptor alpha antibody, ESR1 antibody, ER alpha antibody, ERa antibody, ESR1 FACS antibody
Your bulk quote request has been submitted successfully!
Please contact us if you have any questions.