Roles of mRNA poly(A) tails in regulation of eukaryotic gene expression.

Roles of mRNA poly(A) tails in regulation of eukaryotic gene expression.
复制标题

DOI:
10.1038/s41580-021-00417-y
复制
发表时间:
2022-03
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
通讯作者:
Coller J
Coller J
中科院分区:
其他
文献类型:
--
作者:
Passmore LA;Coller J

文献摘要

参考文献

被引文献

相似文献

Poly(A)尾,存在于几乎所有真核生物的mRNA上,是在50多年前发现的。早期的实验提出了poly(A)尾和胞质poly(A)结合蛋白促进翻译并阻止mRNA降解的假设,但细节仍不清楚。最近的数据表明,poly(A)尾的作用要复杂得多:poly(A)结合蛋白可以刺激poly(A)尾的去除(去腺苷酸化),并且稳定的、高度翻译的mRNA在稳态时的poly(A)尾比预期的要短得多。此外,翻译延伸的速率影响去腺苷化。总之,poly(A)尾、poly(A)结合蛋白、翻译和mRNA衰变之间的相互作用在调节基因表达中起主要作用。在这篇综述中,我们总结了最近的工作,是革命性的领域和改变我们的观点聚(A)尾在细胞质中的作用。具体而言,我们讨论了poly(A)尾在翻译和mRNA稳定性中的作用,以及poly(A)尾如何被核酸外切酶(deadenylases)(包括Ccr 4-Not和Pan 2-Pan 3)去除。我们还涵盖了当前研究的主要主题,包括如何确定去腺苷化率,整合去腺苷化与其他细胞过程,以及细胞质poly(A)结合蛋白的功能。最后,我们对这一领域的未来研究进行了展望。
Poly(A) tails, present on almost every eukaryotic mRNA, were discovered over 50 years ago. Early experiments led to the hypothesis that poly(A) tails and the cytoplasmic poly(A)-binding protein promote translation and prevent mRNA degradation, but the details remained unclear. More recent data suggest that the role of poly(A) tails is much more complex: poly(A)-binding protein can stimulate poly(A) tail removal (deadenylation), and the poly(A) tails of stable, highly-translated mRNAs at steady state are much shorter than expected. Moreover, the rate of translation elongation impacts deadenylation. Together, the interplay between poly(A) tails, poly(A)-binding protein, translation, and mRNA decay plays a major role in regulating gene expression. In this review, we summarize recent work that is revolutionizing the field and changing our perspective on the roles of poly(A) tails in the cytoplasm. Specifically, we discuss the roles of poly(A) tails in translation and mRNA stability, and how poly(A) tails are removed by exonucleases (deadenylases) including Ccr4-Not and Pan2-Pan3. We also cover major topics of current research, including how deadenylation rate is determined, the integration of deadenylation with other cellular processes, and the function of the cytoplasmic poly(A)-binding protein. Finally, we provide an outlook for the future of research in this area.
DOI: 10.1016/j.celrep.2018.07.039
发表时间: 2018-08-14
期刊: Cell reports
影响因子: 8.8
作者:
Burow DA;Martin S;Quail JF;Alhusaini N;Coller J;Cleary MD
通讯作者: Cleary MD
DOI: 10.1016/j.bbagrm.2013.02.003
发表时间: 2013-06
影响因子: 4.7
作者:
Brooks, Seth A.;Blackshear, Perry J.
通讯作者: Blackshear, Perry J.
DOI: 10.1073/pnas.77.4.1890
发表时间: 1980-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
BAER, BW;KORNBERG, RD
通讯作者: KORNBERG, RD
DOI: 10.1093/nar/gkz1187
发表时间: 2020-02-28
影响因子: 14.9
作者:
Arvola, Rene M.;Chang, Chung-Te;Goldstrohm, Aaron C.
通讯作者: Goldstrohm, Aaron C.
DOI: 10.1038/newbio233041a0
发表时间: 1971-01-01
期刊: NATURE-NEW BIOLOGY
影响因子: --
作者:
BURR, H;LINGREL, JB
通讯作者: LINGREL, JB