RNA polymerase II pausing in development: orchestrating transcription.

RNA polymerase II pausing in development: orchestrating transcription.
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DOI:
10.1098/rsob.210220
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发表时间:
2022-01
期刊:
影响因子:
5.8
通讯作者:
Hadjantonakis AK
Hadjantonakis AK
中科院分区:
生物学2区
文献类型:
--
作者:
Abuhashem A;Garg V;Hadjantonakis AK

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转录网络的协调调控是细胞特性和发育进程的基础。RNA聚合酶II启动子-近端停顿(POL II停顿)是细胞控制和同步转录的一种普遍机制。POL II停顿调节多种信号通路下游的关键基因转录的生产性延长步骤,如成纤维细胞生长因子和结节。在我们对POL II暂停机制及其在转录中的作用的理解方面的最新进展要求在发展的背景下对这些发现进行评估。在这篇综述中,我们讨论了我们目前对POL II暂停的分子基础及其在生物发育中的作用的理解。通过严格评估用于研究这一过程的工具,我们得出结论,将最近开发的基因组学方法与改进的微扰系统相结合,有可能扩大我们对POL II在发展和更远的背景下从机械和功能上暂停的理解。
The coordinated regulation of transcriptional networks underpins cellular identity and developmental progression. RNA polymerase II promoter-proximal pausing (Pol II pausing) is a prevalent mechanism by which cells can control and synchronize transcription. Pol II pausing regulates the productive elongation step of transcription at key genes downstream of a variety of signalling pathways, such as FGF and Nodal. Recent advances in our understanding of the Pol II pausing machinery and its role in transcription call for an assessment of these findings within the context of development. In this review, we discuss our current understanding of the molecular basis of Pol II pausing and its function during organismal development. By critically assessing the tools used to study this process we conclude that combining recently developed genomics approaches with refined perturbation systems has the potential to expand our understanding of Pol II pausing mechanistically and functionally in the context of development and beyond.
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