Rules for functional microRNA targeting.

Rules for functional microRNA targeting.
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DOI:
10.5483/bmbrep.2017.50.11.179
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发表时间:
2017-11
期刊:
影响因子:
3.8
通讯作者:
Baek D
Baek D
中科院分区:
生物学3区
文献类型:
--
作者:
Kim D;Chang HR;Baek D

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microRNA(miRNAs)是一种长度约为22 nt的单链RNA分子,与Argonaute(AGO)蛋白形成RNA诱导沉默复合物,在转录后下调其靶信使RNA(mRNA)。为了了解miRNA的调控机制,发现miRNA如何识别和抑制其靶mRNA的潜在功能规则至关重要。为了确定功能性miRNA的靶向规则,以前的研究广泛使用了各种方法,包括高通量生化分析和生物信息学分析。然而,在一项研究中报道的靶向规则往往不能在其他研究中重现,因此功能性miRNA靶向的一般规则仍然难以捉摸。本文对已有的miRNA靶向机制进行了综述,并探讨了功能性miRNA对基因调控网络的生物学影响以及未来miRNA靶向研究的方向。
MicroRNAs (miRNAs) are ~22nt-long single-stranded RNA molecules that form a RNA-induced silencing complex with Argonaute (AGO) protein to post-transcriptionally downregulate their target messenger RNAs (mRNAs). To understand the regulatory mechanisms of miRNA, discovering the underlying functional rules for how miRNAs recognize and repress their target mRNAs is of utmost importance. To determine functional miRNA targeting rules, previous studies extensively utilized various methods including high-throughput biochemical assays and bioinformatics analyses. However, targeting rules reported in one study often fail to be reproduced in other studies and therefore the general rules for functional miRNA targeting remain elusive. In this review, we evaluate previously-reported miRNA targeting rules and discuss the biological impact of the functional miRNAs on gene-regulatory networks as well as the future direction of miRNA targeting research.
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