7SK methylation by METTL3 promotes transcriptional activity.

7SK methylation by METTL3 promotes transcriptional activity.
复制标题

DOI:
10.1126/sciadv.ade7500
复制
发表时间:
2023-05-10
期刊:
影响因子:
13.6
通讯作者:
--
中科院分区:
综合性期刊1区
文献类型:
--
作者:

文献摘要

参考文献

相似文献

细胞信号传导的一个基本特征是细胞外信号转化为适应性转录反应。RNA修饰在这一过程中的作用知之甚少。小核RNA 7SK通过隔离细胞周期蛋白依赖性激酶9/细胞周期蛋白T1(CDK 9/CCNT 1)正转录延伸因子(P-TEFb)复合物来防止转录延伸。我们发现表皮生长因子信号传导诱导甲基转移酶3(stomach L3)的磷酸化,导致stomach L3介导的7SK甲基化。7SK甲基化增强了其与异质核核糖核蛋白的结合,导致HEXIM 1 P-TEFb复合物亚基1(HEXIM 1)/P-TEFb复合物的释放并诱导转录延伸。我们的研究结果建立了7SK激活的机制,并揭示了m6 A修饰通过RNA甲基化依赖性开关将生长因子信号传导事件转化为调控转录反应的先前未知功能。非编码RNA 7SK的m6 A甲基化促进生长因子刺激后的转录活性。
A fundamental feature of cell signaling is the conversion of extracellular signals into adaptive transcriptional responses. The role of RNA modifications in this process is poorly understood. The small nuclear RNA 7SK prevents transcriptional elongation by sequestering the cyclin dependent kinase 9/cyclin T1 (CDK9/CCNT1) positive transcription elongation factor (P-TEFb) complex. We found that epidermal growth factor signaling induces phosphorylation of the enzyme methyltransferase 3 (METTL3), leading to METTL3-mediated methylation of 7SK. 7SK methylation enhanced its binding to heterogeneous nuclear ribonucleoproteins, causing the release of the HEXIM1 P-TEFb complex subunit1 (HEXIM1)/P-TEFb complex and inducing transcriptional elongation. Our findings establish the mechanism underlying 7SK activation and uncover a previously unknown function for the m6A modification in converting growth factor signaling events into a regulatory transcriptional response via an RNA methylation–dependent switch. m6A methylation of the non-coding RNA 7SK promotes transcriptional activity upon growth factor stimulation.
n(6) - 甲基腺苷依赖性RNA结构开关调节RNA蛋白质相互作用。
DOI: 10.1038/nature14234
发表时间: 2015-02-26
期刊: NATURE
影响因子: 64.8
作者:
Liu, Nian;Dai, Qing;Zheng, Guanqun;He, Chuan;Parisien, Marc;Pan, Tao
通讯作者: Pan, Tao
DOI: 10.1073/pnas.1721670115
发表时间: 2018-03-20
影响因子: 11.1
作者:
Briese M;Saal-Bauernschubert L;Ji C;Moradi M;Ghanawi H;Uhl M;Appenzeller S;Backofen R;Sendtner M
通讯作者: Sendtner M
DOI: 10.2144/000114262
发表时间: 2015-03
期刊: BioTechniques
影响因子: 2.7
作者:
LaCava J;Molloy KR;Taylor MS;Domanski M;Chait BT;Rout MP
通讯作者: Rout MP
DOI: 10.1007/s13361-019-02243-1
发表时间: 2019-08-01
影响因子: 3.2
作者:
Li, Wenxue;Chi, Hao;Liu, Yansheng
通讯作者: Liu, Yansheng
DOI: 10.1093/nar/gkx141
发表时间: 2017-06-02
影响因子: 14.9
作者:
Liu N;Zhou KI;Parisien M;Dai Q;Diatchenko L;Pan T
通讯作者: Pan T