Key Product Details

Species Reactivity

Human

Applications

Immunocytochemistry

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG3 Clone # 585112
View all ER alpha/NR3A1 Primary Antibodies »

Product Specifications

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.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG3

Scientific Data Images for Human ER alpha /NR3A1 Antibody

ERa/NR3A1 antibody in PC-3 Human Cell Line by Immunocytochemistry (ICC).

ER alpha /NR3A1 in PC‑3 Human Cell Line.

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

Applications for Human ER alpha /NR3A1 Antibody

Application
Recommended Usage

Immunocytochemistry

8-25 µg/mL
Sample: Immersion fixed PC-3 human prostate cancer cell line

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Sterile PBS to a final concentration of 0.5 mg/mL. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in TBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & 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.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: ER alpha/NR3A1

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.

Long Name

Estrogen Receptor alpha

Alternate Names

ESR1, NR3A1

Entrez Gene IDs

2099 (Human)

Gene Symbol

ESR1

UniProt

P03372

Additional ER alpha/NR3A1 Products

Product Documents for Human ER alpha /NR3A1 Antibody

Certificate of Analysis

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Product Specific Notices for Human ER alpha /NR3A1 Antibody

For research use only

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FAQs

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Associated Pathways

TGF-beta Signaling Pathways TGF-beta Signaling Pathway Thumbnail