A programmable system to methylate and demethylate N(6)-methyladenosine (m(6)A) on specific RNA transcripts in mammalian cells.
A programmable system to methylate and demethylate N(6)-methyladenosine (m(6)A) on specific RNA transcripts in mammalian cells.
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哺乳动物细胞中特定RNA转录物的甲基化和去甲基化N(6)-甲基腺苷(m(6)A)的可编程系统。
DOI:
10.1016/j.jbc.2022.102525
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发表时间:
2022-11
影响因子:
4.8
通讯作者:
Hutchins, Andrew P.
中科院分区:
文献类型:
--
作者:
Chang, Chen;Ma, Gang;Cheung, Edwin;Hutchins, Andrew P.
RNA N6-methyladenosine (m6A) is the most abundant internal mRNA modification and forms part of an epitranscriptomic system that modulates RNA function. m6A is reversibly catalyzed by specific enzymes, and those modifications can be recognized by RNA-binding proteins that in turn regulate biological processes. Although there are many reports demonstrating m6A participation in critical biological functions, this exploration has mainly been conducted through the global KO or knockdown of the writers, erasers, or readers of m6A. Consequently, there is a lack of information about the role of m6A on single transcripts in biological processes, posing a challenge in understanding the biological functions of m6A. Here, we demonstrate a CRISPR/dCas13a-based RNA m6A editors, which can target RNAs using a single or multiple CRISPR RNA array to methylate or demethylate m6A in human 293T cells and mouse embryonic stem cells. We systematically assay its capabilities to enable the targeted rewriting of m6A dynamics, including modulation of circular RNA translation and transcript half-life. Finally, we use the system to specifically modulate m6A levels on the noncoding XIST (X-inactive specific transcript) to modulate X chromosome silencing and activation. The editors described here can be used to explore the roles of m6A in biological processes.
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影响因子:
64.8
作者:
Han, Zhifu;Niu, Tianhui;Chai, Jijie
通讯作者:
Chai, Jijie
DOI:
10.1126/science.aaf5573
发表时间:
2016-08-05
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Abudayyeh OO;Gootenberg JS;Konermann S;Joung J;Slaymaker IM;Cox DB;Shmakov S;Makarova KS;Semenova E;Minakhin L;Severinov K;Regev A;Lander ES;Koonin EV;Zhang F
通讯作者:
Zhang F
影响因子:
64.8
作者:
East-Seletsky A;O'Connell MR;Knight SC;Burstein D;Cate JH;Tjian R;Doudna JA
通讯作者:
Doudna JA
影响因子:
4.8
作者:
Feng, Chong;Liu, Yang;Chen, Zhongzhou
通讯作者:
Chen, Zhongzhou
影响因子:
13.8
作者:
Huisman B;Manske G;Carney S;Kalantry S
通讯作者:
Kalantry S