One hundred million adenosine-to-inosine RNA editing sites: hearing through the noise.
One hundred million adenosine-to-inosine RNA editing sites: hearing through the noise.
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DOI:
10.1002/bies.201400055
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发表时间:
2014-08
期刊:
影响因子:
4
通讯作者:
Emeson, Ronald B.
中科院分区:
文献类型:
--
作者:
Ulbricht, Randi J.;Emeson, Ronald B.
The most recent work toward compiling a comprehensive database of adenosine-to-inosine RNA editing events suggests that the potential for RNA editing is much more pervasive than previously thought; indeed, it is manifest in more than 100 million potential editing events located primarily within Alu repeat elements of the human transcriptome. Pairs of inverted Alu repeats are found in a substantial number of human genes, and when transcribed, they form long double-stranded RNA structures that serve as optimal substrates for RNA editing enzymes. A small subset of edited Alu elements has been shown to exhibit diverse functional roles in the regulation of alternative splicing, miRNA repression and cis-regulation of distant RNA editing sites. The low level of editing for the remaining majority may be non-functional, yet their persistence in the primate genome provides enhanced genomic flexibility that may be required for adaptive evolution.
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