Mechanism of estrogen receptor-dependent transcription in a cell-free system

Mechanism of estrogen receptor-dependent transcription in a cell-free system
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无细胞系统中雌激素受体依赖性转录机制

DOI:
10.1128/mcb.10.12.6607-6612.1990
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发表时间:
1990
影响因子:
5.3
通讯作者:
B. O’Malley
B. O’Malley
中科院分区:
生物学2区
文献类型:
--
作者:
J. F. Elliston;S. Fawell;L. Klein;S. Tsai;M. Tsai;M. Parker;B. O’Malley

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RNA合成刺激直接在无细胞表达系统的重组小鼠雌激素受体(ER)的粗制剂。受体刺激的转录需要在测试模板中存在雌激素反应元件(ERE),并可以通过添加含有ERE的竞争性寡核苷酸特异性抑制。此外,针对ER的DNA结合区的多克隆抗体抑制ER依赖性转录。在我们的无细胞表达系统中,不含雌激素受体的雌激素受体以不依赖雌激素受体的方式诱导转录。有证据表明,ER的行为,通过促进形成一个稳定的preinitiation复合物在靶基因启动子,从而增强启动RNA聚合酶II的转录。这些观察结果支持我们目前对类固醇受体调节基因表达机制的理解,并表明类固醇受体超家族成员之间的功能具有很强的保守性。
RNA synthesis was stimulated directly in a cell-free expression system by crude preparations of recombinant mouse estrogen receptor (ER). Receptor-stimulated transcription required the presence of estrogen response elements (EREs) in the test template and could be specifically inhibited by addition of competitor oligonucleotides containing EREs. Moreover, polyclonal antibodies directed against the DNA-binding region of ER inhibited ER-dependent transcription. In our cell-free expression system, hormone-free ER induced transcription in a hormone-independent manner. Evidence is presented suggesting that ER acts by facilitating the formation of a stable preinitiation complex at the target gene promoter and thus augments the initiation of transcription by RNA polymerase II. These observations lend support to our current understanding of the mechanism of steroid receptor-regulated gene expression and suggest strong conservation of function among members of the steroid receptor superfamily.
DOI: --
发表时间: 1990
期刊: The Journal of biological chemistry
影响因子: --
作者:
Bagchi,MK;Tsai,SY;Weigel,NL;Tsai,MJ;O'Malley,BW
通讯作者: O'Malley,BW
DOI: 10.1016/0022-4731(84)90188-2
发表时间: 1984-01-01
影响因子: 4.1
作者:
GREENE, GL;SOBEL, NB;JENSEN, EV
通讯作者: JENSEN, EV
DOI: 10.1016/s0021-9258(17)39577-7
发表时间: 1985-07
期刊: The Journal of biological chemistry
影响因子: --
作者:
D. K. Hawley;R. Roeder
通讯作者: D. K. Hawley;R. Roeder
激素诱导的鸡黄体酮受体体外 DNA 结合活性的变化。
DOI: 10.1210/mend-3-2-356
发表时间: 1989
期刊: Molecular endocrinology (Baltimore, Md.)
影响因子: --
作者:
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通讯作者: Schrader,WT