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.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG_2B

Scientific Data Images for Human/Mouse/Rat ER alpha/NR3A1 Antibody

Detection of Human, Mouse, and Rat ER alpha/NR3A1 by Western Blot.

Western blot shows lysates of MCF-7 human breast cancer cell line, HeLa human cervical epithelial carcinoma cell line, C2C12 mouse myoblast cell line, and L6 rat myoblast cell line. PVDF Membrane was probed with 0.05 µg/mL of Human ERa/NR3A1 Monoclonal Antibody (Catalog # MAB57151) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for ERa/NR3A1 at approximately 65 to 70 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Detection of Human ER alpha/NR3A1 by Simple Western^TM.

Simple Western lane view shows lysates of MCF‑7 human breast cancer cell line, loaded at 0.2 mg/mL. A specific band was detected for ER alpha/NR3A1 at approximately 75 kDa (as indicated) using 1 µg/mL of Mouse Anti-Human/Mouse/Rat ER alpha/NR3A1 Monoclonal Antibody (Catalog # MAB57151). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Applications for Human/Mouse/Rat ER alpha/NR3A1 Antibody

Application

Recommended Usage

Simple Western

1 µg/mL
Sample: MCF‑7 human breast cancer cell line

Western Blot

0.05 µg/mL
Sample: MCF‑7 human breast cancer cell line, HeLa human cervical epithelial carcinoma cell line, C2C12 mouse myoblast cell line, and L6 rat myoblast 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 PBS 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.

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/Mouse/Rat ER alpha/NR3A1 Antibody

Product Datasheets

Download Product Datasheets

COA

SDS

Download SDS

Product Specific Notices for Human/Mouse/Rat ER alpha/NR3A1 Antibody

For research use only

Citations
Reviews

Human/Mouse/Rat ER alpha/NR3A1 Antibody

R&D Systems, part of Bio-Techne | Catalog # MAB57151

Key Product Details

Species Reactivity

Validated:

Cited:

Applications