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秋雨晗晨

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[求助] UBF activates RNA polymerase I transcription by stimulating promoter escape

UBF activates RNA polymerase I transcription by stimulating promoter escape.这里面的 stimulating promoter escape是什么意思
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至尊木虫 (知名作家)

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【答案】应助回帖

UBF通过刺激启动子解脱激活RNA聚合酶II转录。

promoter escape:启动子解脱,是指发生在真核生物基因转录起始过程后期的一个现象,即转录起始复合体形成后RNA聚合酶从启动子上脱离,此后RNA聚合酶不再依赖启动子就能继续完成转录,但是转录的速度也因此而受到限制。
2楼2015-03-09 03:18:35
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