Product Datasheet  
Estrogen Receptor-α (Ab-537) Antibody  
Catalog Number: 33133  
Technical:tech@swbio.com  
Information:info@swbio.com  
Description  
  • host_species：  
  • Rabbit
  • Amount：  
  • 100μgμg
  • Swiss-Prot No.：  
  • Swiss-Prot: P03372
    NCBI Gene ID: 2099
  • Form of Antibody：  
  • Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
  • Storage：  
  • Store at -20˚C
  • Immunogen：  
  • Synthesized non-phosphopeptide derived from human Estrogen Receptor-α around the phosphorylation site of tyrosine 537 (P-L-Y(p)-D-L).
  • reactivity：  
  • Hu Ms
  • appl_detail：  
  • Western blotting: 1:500~1:3000
    Immunohistochemistry: 1:50~1:100
  • other_names：  
  • ER; ESR; ESR1; ESTR; ESTRA
  • Purification：  
  • The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
  • Specificity：  
  • The antibody detects endogenous levels of total Estrogen Receptor-α protein.
  • Applications：  
  • WB IHC
  • Background：  
  • 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. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full length receptor. Isoform 3 can bind to ERE and inhibit isoform 1.

    Sehime Temel, Endocrinology, Oct 2002; 143: 3974.
    Xin-Tian Zhang, AACR Meeting Abstracts, Apr 2005; 2005: 302.
    Suwit J. Somponpun, Am J Physiol Regulatory Integrative Comp Physiol, Sep 2004; 287: R661 - R669.



 
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