MicroRNAs: Biogenesis and molecular functions

MicroRNAs: Biogenesis and molecular functions
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DOI:
10.1111/j.1750-3639.2007.00121.x
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发表时间:
2008-01-01
期刊:
影响因子:
6.4
通讯作者:
Mourelatos, Zissimos
Mourelatos, Zissimos
中科院分区:
医学2区
文献类型:
--
作者:
Liu, Xuhang;Fortin, Kristine;Mourelatos, Zissimos

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小分子调控RNA(Small regulatory RNA,siRNA)是RNA干扰(RNA interference,RNAi)的关键介质,是一种重要的、普遍存在的核糖核酸调节因子。它们包括microRNA(miRNAs)和短干扰RNA(siRNAs),类似于22个核苷酸的RNA。miRNA和siRNA与Argonaute蛋白结合并形成调节基因表达的效应复合物;在动物中,这种调节主要发生在转录后水平。在这篇综述中,我们将讨论我们目前对miRNA和siRNA是如何产生的,以及它们如何沉默基因表达的理解,重点是动物,特别是哺乳动物的miRNA。
Small regulatory RNAs are essential and ubiquitous riboregulators that are the key mediators of RNA interference (RNAi). They include microRNAs (miRNAs) and short-interfering RNAs (siRNAs), classes of similar to 22 nucleotide RNAs. miRNAs and siRNAs bind to Argonaute proteins and form effector complexes that regulate gene expression; in animals, this regulation occurs primarily at the post-transcriptional level. In this review, we will discuss our current understanding of how miRNA and siRNAs are generated and how they function to silence gene expression, focusing on animal and, in particular, mammalian miRNAs.