General description
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. Essential for MTA1-mediated transcriptional regulation of BRCA1 and BCAS3. Isoform 3 can bind to ERE and inhibit isoform 1.
Immunogen
A synthesized peptide derived from human Phospho-ESR1 (S118)
Physical form
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Preparation Note
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Other Notes
103-135aa
| recombinant | expressed in HEK 293 F cells |
| Quality Segment | 100 |
| conjugate | unconjugated |
| antibody product type | primary antibodies |
| clone | 4H1, recombinant monoclonal |
| form | liquid |
| mol wt | 150 kDa |
| purified by | affinity chromatography |
| species reactivity | human |
| concentration | 2mg/ml |
| technique(s) | ELISA: 2000:10000,flow cytometry: 1:50-1:200,immunofluorescence: 1:50-1:200,immunohistochemistry: 1:50-1:200 |
| isotype | IgG |
| UniProt accession no. | P03372 |
| shipped in | wet ice |
| storage temp. | -10 to -25°C |
| target post-translational modification | phosphorylation (pSer118) |
