Evolution of the human-specific microRNA miR-941.
Evolution of the human-specific microRNA miR-941.
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人类特异性 microRNA miR-941 的进化
DOI:
10.1038/ncomms2146
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发表时间:
2012
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
MicroRNA-mediated gene regulation is important in many physiological processes. Here we explore the roles of a microRNA, miR-941, in human evolution. We find that miR-941 emergedde novoin the human lineage, between six and one million years ago, from an evolutionarily volatile tandem repeat sequence. Its copy-number remains polymorphic in humans and shows a trend for decreasing copy-number with migration out of Africa. Emergence of miR-941 was accompanied by accelerated loss of miR-941-binding sites, presumably to escape regulation. We further show that miR-941 is highly expressed in pluripotent cells, repressed upon differentiation and preferentially targets genes in hedgehog- and insulin-signalling pathways, thus suggesting roles in cellular differentiation. Human-specific effects of miR-941 regulation are detectable in the brain and affect genes involved in neurotransmitter signalling. Taken together, these results implicate miR-941 in human evolution, and provide an example of rapid regulatory evolution in the human linage.
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影响因子:
7
作者:
de Wit, Elzo;Linsen, Sam E. V.;Berezikov, Eugene
通讯作者:
Berezikov, Eugene
影响因子:
14.9
作者:
Griffiths-Jones S;Grocock RJ;van Dongen S;Bateman A;Enright AJ
通讯作者:
Enright AJ
影响因子:
4.5
作者:
Hu HY;Guo S;Xi J;Yan Z;Fu N;Zhang X;Menzel C;Liang H;Yang H;Zhao M;Zeng R;Chen W;Pääbo S;Khaitovich P
通讯作者:
Khaitovich P
影响因子:
16.2
作者:
Fernández-Chacón, R;Wölfel, M;Südhof, TC
通讯作者:
Südhof, TC
DOI:
10.1073/pnas.0800334105
发表时间:
2008-06-10
影响因子:
11.1
作者:
Azuma-Mukai, Asuka;Oguri, Hideo;Siomi, Mikiko C.
通讯作者:
Siomi, Mikiko C.