MicroRNA biogenesis: there's more than one way to skin a cat.

MicroRNA biogenesis: there's more than one way to skin a cat.
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DOI:
10.1016/j.bbagrm.2008.08.005
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发表时间:
2008-11
影响因子:
4.7
通讯作者:
Guo, Feng
Guo, Feng
中科院分区:
生物学2区
文献类型:
--
作者:
Faller, Michael;Guo, Feng

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microRNAs (miRNAs)广泛参与发育编程。一些mirna是高度保守的,而另一些则是谱系特异性的。所有的mirna都要经过一系列的加工步骤才能成熟。在这里,我们回顾了miRNA生物发生早期步骤的最新研究进展,重点是动物系统。miRNA成熟途径的多样性令人惊讶,包括RNA聚合酶II或III的转录,Drosha核酸酶或剪接体的切割,有时还包括腺苷脱氨酶ADAR的修饰。讨论了miRNA生物发生多样性与miRNA基因和功能明显快速进化之间的关系。
microRNAs (miRNAs) are extensively involved in developmental programming. Some miRNAs are highly conserved, while others are lineage specific. All miRNAs maturate through a series of processing steps. Here we review recent progresses in the studies of early steps in miRNA biogenesis, focusing on animal systems. The miRNA maturation pathways are surprisingly diverse, involving transcription by RNA polymerase II or III, cleavage by the Drosha nuclease or the spliceosome, and sometimes modifications by the adenosine deaminase ADAR. The relationship between the diversity in miRNA biogenesis and the apparently rapid evolution of miRNA genes and functions is discussed.
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