ALKBH1-Mediated tRNA Demethylation Regulates Translation.
ALKBH1-Mediated tRNA Demethylation Regulates Translation.
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DOI:
10.1016/j.cell.2016.09.038
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发表时间:
2016-10-20
期刊:
影响因子:
64.5
通讯作者:
He, Chuan
中科院分区:
文献类型:
--
作者:
Liu, Fange;Clark, Wesley;Luo, Guanzheng;Wang, Xiaoyun;Fu, Ye;Wei, Jiangbo;Wang, Xiao;Hao, Ziyang;Dai, Qing;Zheng, Guanqun;Ma, Honghui;Han, Dali;Evans, Molly;Klungland, Arne;Pan, Tao;He, Chuan
Transfer RNA (tRNA) is a central component of protein synthesis and cell signaling network. One salient feature of tRNA is its heavily modified status, which can critically impact its function. Here we show that mammalian ALKBH1 is a tRNA demethylase. It mediates the demethylation of N1-methyladenosine (m1A) in tRNAs. The ALKBH1-catalyzed demethylation of the target tRNAs results in attenuated translation initiation and their decreased usage in protein synthesis. This process is dynamic and responds to glucose availability to affect translation. Our results uncover reversible methylation of tRNA as a new regulatory mechanism of post-transcriptional gene expression. Reversible tRNA methylation helps translation respond to nutrient availability.
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影响因子:
16
作者:
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通讯作者:
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影响因子:
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DOI:
10.1126/science.1151710
发表时间:
2007-11-30
期刊:
Science (New York, N.Y.)
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通讯作者:
Schofield CJ
影响因子:
48
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Lowe TM
DOI:
10.1073/pnas.0704459104
发表时间:
2007-10-02
影响因子:
11.1
作者:
Ghosh, Amit;Vishveshwara, Saraswathi
通讯作者:
Vishveshwara, Saraswathi