Estrogen Receptor α (62A3) Mouse mAb #2512
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Supporting Data
| REACTIVITY | H |
| SENSITIVITY | Endogenous |
| MW (kDa) | 66 |
| Source/Isotype | Mouse IgG2a |
Application Key:
- WB-Western Blotting
Species Cross-Reactivity Key:
- H-Human
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
Storage
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.
Protocol
Specificity / Sensitivity
Estrogen Receptor α (62A3) Mouse mAb detects endogenous levels of estrogen receptor α. It does not cross-react with estrogen receptor beta or other family members.
Species Reactivity:
Human
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ser118 of human ER alpha.
Background
Estrogen receptor α (ERα), a member of the steroid receptor superfamily, contains highly conserved DNA binding and ligand binding domains (1). Through its estrogen-independent and estrogen-dependent activation domains (AF-1 and AF-2, respectively), ERα regulates transcription by recruiting coactivator proteins and interacting with general transcriptional machinery (2). Phosphorylation at multiple sites provides an important mechanism to regulate ERα activity (3-5). Ser104, 106, 118, and 167 are located in the amino-terminal transcription activation function domain AF-1, and phosphorylation of these serine residues plays an important role in regulating ERα activity. Ser118 may be the substrate of the transcription regulatory kinase CDK7 (5). Ser167 may be phosphorylated by p90RSK and Akt (4,6). According to the research literature, phosphorylation at Ser167 may confer tamoxifen resistance in breast cancer patients (4).
- Mangelsdorf, D.J. et al. (1995) Cell 83, 835-9.
- Glass, C.K. and Rosenfeld, M.G. (2000) Genes Dev 14, 121-41.
- Chen, D. et al. (1999) Mol Cell Biol 19, 1002-15.
- Campbell, R.A. et al. (2001) J Biol Chem 276, 9817-24.
- Chen, D. et al. (2000) Mol Cell 6, 127-37.
- Joel, P.B. et al. (1998) Mol Cell Biol 18, 1978-84.
限制使用
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For Research Use Only. Not For Use In Diagnostic Procedures.
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