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mRNA前体的可变聚腺苷酸化

Alternative polyadenylation of mRNA precursors.

作者信息

Tian Bin, Manley James L

机构信息

Department of Microbiology, Biochemistry and Molecular Genetics, New Jersey Medical School, Rutgers University, Newark, New Jersey 07103, USA.

Department of Biological Sciences, Columbia University, New York, New York 10027, USA.

出版信息

Nat Rev Mol Cell Biol. 2017 Jan;18(1):18-30. doi: 10.1038/nrm.2016.116. Epub 2016 Sep 28.

Abstract

Alternative polyadenylation (APA) is an RNA-processing mechanism that generates distinct 3' termini on mRNAs and other RNA polymerase II transcripts. It is widespread across all eukaryotic species and is recognized as a major mechanism of gene regulation. APA exhibits tissue specificity and is important for cell proliferation and differentiation. In this Review, we discuss the roles of APA in diverse cellular processes, including mRNA metabolism, protein diversification and protein localization, and more generally in gene regulation. We also discuss the molecular mechanisms underlying APA, such as variation in the concentration of core processing factors and RNA-binding proteins, as well as transcription-based regulation.

摘要

可变聚腺苷酸化(APA)是一种RNA加工机制,可在mRNA和其他RNA聚合酶II转录本上产生不同的3'末端。它在所有真核生物物种中广泛存在,被认为是基因调控的主要机制。APA具有组织特异性,对细胞增殖和分化很重要。在本综述中,我们讨论了APA在多种细胞过程中的作用,包括mRNA代谢、蛋白质多样化和蛋白质定位,以及更广泛的基因调控。我们还讨论了APA背后的分子机制,如核心加工因子和RNA结合蛋白浓度的变化,以及基于转录的调控。

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