Invitrogen

Estrogen Receptor alpha Monoclonal Antibody (tbykt), eBioscience™

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Datasheet
Protocols
Questions & Answers
Datasheet
Protocols
Questions & Answers

Product Details

14-9740-82

Applications
Tested Dilution
Publications

Western Blot (WB)

5 µg/mL
-

Immunohistochemistry (Paraffin) (IHC (P))

0.5 µg/mL
-

Immunocytochemistry (ICC/IF)

1 µg/mL
-
Product Specifications

Species Reactivity

Human

Host/Isotype

Mouse / IgG1, kappa

Class

Monoclonal

Type

Antibody

Clone

tbykt

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

0.5 mg/mL

Purification

Affinity chromatography

Storage buffer

PBS, pH 7.2

Contains

0.09% sodium azide

Storage conditions

4°C

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_2572968

Product Specific Information

Description: The tbykt monoclonal antibody reacts with the human Estrogen Receptor alpha (ERa) molecule. Estrogen receptor is a member of the superfamily of nuclear receptors, which are ligand-dependent transcription factors. The human estrogen receptor becomes activated following the binding of estrogen, causing a dissociation of the chaperone protein (Hsp90) and dimerization with either ERa or ERb. The alpha and beta receptors share some homology within their DNA- and ligand- binding domains, but signal in different ways and play different roles in gene regulation. Following activation, Era can directly bind to DNA through EREs (estrogen response elements) or through a more indirect pathway by binding to other transcription factors (Sp1, AP-1, NF-kB, FoxA1 and others). Era binding to DNA can either upregulate or repress gene expression. The alpha receptor has been implicated in the development and progression of breast cancer and its presence is indicative of improved survival and a better response to endocrine therapy (anti-estrogen therapy- tamoxifen).

Applications Reported: This tbykt antibody has been reported for use western blotting, immunohistochemical staining, immunocytochemistry, and immunohistochemical staining of formalin-fixed paraffin embedded tissue sections.

Applications Tested: This tbykt antibody has been tested by immunohistochemistry of formalin-fixed paraffin embedded human tissue using low pH or high pH antigen retrieval and can be used at less than or equal to 0.5 µg/mL. This tbykt antibody has been tested by immunocytochemistry of fixed and permeabilized human cells and can be used at less than or equal to 1.0 µg/mL. This tbykt antibody has been tested by western blot of reduced HeLa cell lysate and can be used at less than or equal to 5.0 µg/mL. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.

Purity: Greater than 90%, as determined by SDS-PAGE.

Aggregation: Less than 10%, as determined by HPLC.

Filtration: 0.2 µm post-manufacturing filtered.

Target Information

Estrogen Receptors (ER) are members of the steroid/thyroid hormone receptor superfamily of nuclear receptors. The estrogen receptor is a ligand-activated transcription factor, that when bound to estrogen hormone, induces a conformational change that allows dimerization and binding to estrogen response elements (ERE) in DNA. When bound to EREs, ER can positively or negatively regulate gene transcription through the recruitment of coactivator or corepressor proteins. There are two different forms of the estrogen receptor, alpha and beta, encoded by separate genes (ESR1 and ESR2, respectively). Due to alternative RNA splicing, at least 4 estrogen receptor-alpha isoforms are known to exist (Isoform 1 (66 kDa), Isoform 2 (53 kDa), Isoform 3 (47 kDa), Isoform 4 (35 kDa)). Estrogen receptors are widely expressed in different tissue types and are essential for sexual development and reproductive function. They also play a role in other tissues such as bone. Estrogen receptors are involved in pathological processes including breast cancer, endometrial cancer, and osteoporosis.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

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Bioinformatics

Protein Aliases: DKFZp686N23123; ER; ER-alpha; ER36; esr 1; esr-1; Estradiol receptor; estrogen nuclear receptor alpha; Estrogen receptor; estrogen receptor alpha E1-E2-1-2; estrogen receptor alpha E1-N2-E2-1-2; estrogen receptor alpha splice variant, CTERP-1; estrogen receptor alpha splice variant, ERalphaDup5; estrogen receptor alpha splice variant, ERalphai45a; estrogen receptor alpha splice variant, ERalphai45bL; estrogen receptor alpha splice variant, ERalphai45bS; estrogen receptor alpha splice variant, ERalphai45c; estrogen receptor alpha splice variant, ERalphai56; estrogen receptor alpha splice variant, ERalphai67; hER-alpha36; Nuclear receptor subfamily 3 group A member 1; RP1-130E4.1

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Gene Aliases: ER; Era; ESR; ESR1; ESRA; ESTRR; NR3A1

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UniProt ID: (Human) P03372

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Entrez Gene ID: (Human) 2099

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Function(s)
RNA polymerase II core promoter proximal region sequence-specific DNA binding core promoter sequence-specific DNA binding transcriptional activator activity, RNA polymerase II core promoter proximal region sequence-specific binding transcription coactivator binding chromatin binding transcription factor activity, sequence-specific DNA binding steroid hormone receptor activity steroid binding protein binding beta-catenin binding transcription factor binding zinc ion binding enzyme binding nitric-oxide synthase regulator activity estrogen receptor activity type 1 metabotropic glutamate receptor binding protein complex binding estrogen response element binding phosphatidylinositol 3-kinase regulatory subunit binding RNA polymerase II transcription factor activity, estrogen-activated sequence-specific DNA binding hormone binding identical protein binding ATPase binding
Process(es)
negative regulation of transcription from RNA polymerase II promoter antral ovarian follicle growth osteoblast development chromatin remodeling transcription, DNA-templated regulation of transcription, DNA-templated transcription from RNA polymerase II promoter transcription initiation from RNA polymerase II promoter signal transduction phospholipase C-activating G-protein coupled receptor signaling pathway positive regulation of cytosolic calcium ion concentration androgen metabolic process negative regulation of gene expression positive regulation of phospholipase C activity intracellular steroid hormone receptor signaling pathway intracellular estrogen receptor signaling pathway response to estradiol negative regulation of I-kappaB kinase/NF-kappaB signaling negative regulation of sequence-specific DNA binding transcription factor activity regulation of neuron apoptotic process response to estrogen positive regulation of epidermal growth factor receptor signaling pathway positive regulation of transcription, DNA-templated positive regulation of transcription from RNA polymerase II promoter negative regulation of glucose import decidualization positive regulation of fibroblast proliferation negative regulation of smooth muscle cell proliferation positive regulation of epithelial cell proliferation positive regulation of sequence-specific DNA binding transcription factor activity Sertoli cell development Sertoli cell proliferation uterus development vagina development prostate epithelial cord elongation prostate epithelial cord arborization involved in prostate glandular acinus morphogenesis regulation of branching involved in prostate gland morphogenesis mammary gland branching involved in pregnancy mammary gland alveolus development epithelial cell proliferation involved in mammary gland duct elongation positive regulation of ERK1 and ERK2 cascade protein localization to chromatin cellular response to estrogen stimulus cellular response to estradiol stimulus negative regulation of triglyceride metabolic process negative regulation of neuron death negative regulation of production of miRNAs involved in gene silencing by miRNA baculum development
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