首页> 美国卫生研究院文献>Molecular and Cellular Biology >Role of the Mammalian RNA Polymerase II C-Terminal Domain (CTD) Nonconsensus Repeats in CTD Stability and Cell Proliferation
【2h】

Role of the Mammalian RNA Polymerase II C-Terminal Domain (CTD) Nonconsensus Repeats in CTD Stability and Cell Proliferation

机译:哺乳动物RNA聚合酶II C末端域(CTD)非共识重复在CTD稳定性和细胞增殖中的作用

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The C-terminal domain (CTD) of mammalian RNA polymerase II (Pol II) consists of 52 repeats of the consensus heptapeptide YSPTSPS and links transcription to the processing of pre-mRNA. The length of the CTD and the number of repeats diverging from the consensus sequence have increased through evolution, but their functional importance remains unknown. Here, we show that the deletion of repeats 1 to 3 or 52 leads to cleavage and degradation of the CTD from Pol II in vivo. Including these repeats, however, allowed the construction of stable, synthetic CTDs. To our surprise, polymerases consisting of just consensus repeats could support normal growth and viability of cells. We conclude that all other nonconsensus CTD repeats are dispensable for the transcription and pre-mRNA processing of genes essential for proliferation.
机译:哺乳动物RNA聚合酶II(Pol II)的C末端结构域(CTD)由共有七肽YSPTSPS的52个重复组成,并将转录与前mRNA的加工相关联。通过进化,CTD的长度和与共有序列不同的重复数已经增加,但是其功能重要性仍然未知。在这里,我们显示重复1至3或52的删除导致体内Pol II的CTD裂解和降解。但是,包括这些重复序列可以构建稳定的合成CTD。令我们惊讶的是,仅由共有重复组成的聚合酶可以支持细胞的正常生长和活力。我们得出结论,所有其他非共识性CTD重复对于转录和增殖所需的基因的mRNA加工都是必不可少的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号