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ESR1 Antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application 
| WB, IHC-P, IF, E |
|---|---|
| Primary Accession | P03372 |
| Other Accession | NP_001116214, 170295804 |
| Reactivity | Human, Mouse, Rat |
| Host | Rabbit |
| Clonality | Polyclonal |
| Isotype | IgG |
| Calculated MW | Predicted: 65 kDa Observed: 62 kDa |
| Application Notes | ESR1 antibody can be used for detection of ESR1 by Western blot at 1 - 2 µg/mL. |
| Gene ID | 2099 |
|---|---|
| Target/Specificity | ESR1; ESR1 antibody is human, mouse and rat reactive. |
| Reconstitution & Storage | ESR1 antibody can be stored at 4℃ for three months and -20℃, stable for up to one year. |
| Precautions | ESR1 Antibody is for research use only and not for use in diagnostic or therapeutic procedures. |
| Name | ESR1 |
|---|---|
| Synonyms | ESR, NR3A1 |
| Function | Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA-binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE- independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF-kappa-B in a cell-type specific manner. Decreases NF-kappa- B DNA-binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Essential for MTA1-mediated transcriptional regulation of BRCA1 and BCAS3 (PubMed:17922032). Maintains neuronal survival in response to ischemic reperfusion injury when in the presence of circulating estradiol (17-beta-estradiol/E2) (By similarity). |
| Cellular Location | [Isoform 1]: Nucleus {ECO:0000255|PROSITE- ProRule:PRU00407, ECO:0000269|PubMed:12682286, ECO:0000269|PubMed:20074560}. Cytoplasm. Cell membrane; Peripheral membrane protein; Cytoplasmic side. Note=A minor fraction is associated with the inner membrane Nucleus. Golgi apparatus. Cell membrane. Note=Colocalizes with ZDHHC7 and ZDHHC21 in the Golgi apparatus where most probably palmitoylation occurs. Associated with the plasma membrane when palmitoylated |
| Tissue Location | Widely expressed (PubMed:10970861). Not expressed in the pituitary gland (PubMed:10970861) |
Thousands of laboratories across the world have published research that depended on the performance of antibodies from Abcepta to advance their research. Check out links to articles that cite our products in major peer-reviewed journals, organized by research category.
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Provided below are standard protocols that you may find useful for product applications.
Background
ESR1 Antibody: Estrogen receptors (ER) are members of the steroid/thyroid hormone receptor superfamily of ligand-activated transcription factors (1). Estrogen receptors, including ESR1, also known as ER-alpha and ESR2 (ER-beta), contain DNA binding and ligand binding domains and are critically involved in regulating the normal function of reproductive tissues. ESR1 is a widely expressed nuclear protein and serves as a strong activator of estrogen responsive genes (1,2). Phosphorylation of serines 104 and 106, located in the N-terminal transcription activation function-1 domain (AF-1), plays a large role in regulating ER alpha activity (3).
References
Pakdel F, Reese JC, and Katzenellenbogen BS. Identification of charged residues in an N- terminal portion of the hormone-binding domain of the human estrogen receptor important in transcriptional activity of the receptor. Mol. Endocrinol. 1993; 7:1408-17.
Sheeler CQ, Singleton DW, and Khan SA. Mutation of serines 104, 106, and 118 inhibits dimerization of the human estrogen receptor in yeast. Endocr. Res. 2003; 29:237-55.
Rogatsky I, Trowbridge JM, and Garabedian MJ. Potentiation of human estrogen receptor alpha transcriptional activation through phosphorylation of serines 104 and 106 by the cyclin A-CDK2 complex. J. Biol. Chem. 1999; 274:22296-302.
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