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estrogen receptor
(redirected from Oestrogen receptor)

   Also found in: Wikipedia 0.06 sec.
estrogen receptor
A protein of a superfamily of nuclear receptors for small hydrophilic ligands–eg, steroid hormones, thyroid hormone, vitamin D, retinoids; the presence of ERs in breast CA generally is associated with a better prognosis, as they respond to hormonal manipulation. See Tamoxifen. ERs are transcription factors that are regulated allosterically by binding a ligand; extracellular estradiol diffuses across the cell membrane, binds to the ER, leading to its dimerization and binding of ER to the estrogen responsive element, the ER's specific DNA target


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