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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Steroid receptor induction of gene transcription: A two-step model
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Steroid receptor induction of gene transcription: A two-step model

机译:类固醇受体诱导基因转录:两步模型

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摘要

Coactivators, such as steroid receptor coac- tivator 1 (SRC-1A) and CREB (cAMP response element binding protein)-binding protein (CBP), are required for efficient steroid receptor transactivation. Using an in vitro transcription assay, we found that progesterone receptor (PR)-driven transcription is inhibited by a dominant negative PR ligand-binding domain-interacting region of SRC-1A, in- dicating that SRC-1A is required for actual transcriptional processes. In addition, these coactivators also possess intrin- sic histone acetyltransferase (HAT) activity and bind to each other and another HAT, p300/CBP-associated factor.
机译:有效的类固醇受体反式激活需要共激活剂,例如类固醇受体协同剂1(SRC-1A)和CREB(cAMP反应元件结合蛋白)结合蛋白(CBP)。通过体外转录测定,我们发现孕酮受体(PR)驱动的转录受SRC-1A的显性负PR配体结合域相互作用区域的抑制,表明实际的转录过程需要SRC-1A 。此外,这些共激活因子还具有固有的组蛋白乙酰转移酶(HAT)活性,并与另一个HAT(与p300 / CBP相关的因子)结合。

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