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Phospho-Estrogen Receptor α (Ser167) (D1A3) Rabbit mAb #5587

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  • WB

Inquiry Info. # 5587

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    Product Specifications

    REACTIVITY H
    SENSITIVITY Endogenous
    MW (kDa) 66
    Source/Isotype Rabbit IgG
    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

    Phospho-Estrogen Receptor α (Ser167) (D1A3) Rabbit mAb detects endogeneous levels of ERα protein only when phosphorylated at Ser167. This antibody cross reacts with a nonspecific band at around 77 kDa.

    Species Reactivity:

    Human

    The antigen sequence used to produce this antibody shares 100% sequence homology with the species listed here, but reactivity has not been tested or confirmed to work by CST. Use of this product with these species is not covered under our Product Performance Guarantee.

    Species predicted to react based on 100% sequence homology:

    Monkey

    Source / Purification

    Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser167 of human estrogen receptor α protein.

    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).

    Alternate Names

    DKFZp686N23123; E2 receptor alpha; ER; ER-alpha; Era; ESR; ESR1; ESRA; Estradiol receptor; estrogen nuclear receptor alpha; Estrogen receptor; estrogen receptor 1; estrogen receptor alpha delta 3; estrogen receptor alpha delta 4; estrogen receptor alpha delta 4 +49 isoform; estrogen receptor alpha E1-E2-1-2; estrogen receptor alpha E1-N2-E2-1-2; ESTRR; NR3A1; Nuclear receptor subfamily 3 group A member 1; oestrogen receptor alpha

    For Research Use Only. Not for Use in Diagnostic Procedures.
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