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TRIM28 as a novel transcriptional elongation factor

机译:TRIM28作为一种新型的转录延伸因子

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TRIM28 is a multidomain protein with versatile functions in transcription and DNA repair. Recently it was shown that this factor plays unanticipated roles in transcriptional elongation. TRIM28 was shown to stabilize the pausing of RNA polymerase II (Pol II) close to the transcriptional start site in many unactivated genes, permitting Pol II accumulation and readying genes for induction. In addition, the factor was shown to respond rapidly to signals accompanying transcriptional activation permitting the productive elongation of RNA by previously paused Pol II. We discuss here critical regulatory mechanisms of TRIM28 in transcriptional control and DNA repair that may illuminate the novel roles of this factor in pausing and elongation of Pol II.
机译:TRIM28是一种多域蛋白,在转录和DNA修复中具有多种功能。最近显示,该因子在转录延伸中起着不可预期的作用。已显示TRIM28可稳定许多未激活基因中靠近转录起始位点的RNA聚合酶II(Pol II)的暂停,从而允许Pol II积累并为诱导基因做好准备。此外,该因子显示出对伴随转录激活的信号快速响应,从而允许先前暂停的Pol II产生RNA的有效延长。我们在这里讨论TRIM28在转录控制和DNA修复中的关键调控机制,这可能阐明该因子在Pol II暂停和延长中的新作用。

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