The methyltransferase PRMT1 regulates γ-globin translation.
The methyltransferase PRMT1 regulates γ-globin translation.
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甲基转移酶 PRMT1 调节 γ-珠蛋白翻译。
DOI:
10.1016/j.jbc.2021.100417
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发表时间:
2021-01
期刊:
影响因子:
--
通讯作者:
Zhao Q
中科院分区:
文献类型:
--
作者:
Wang Y;Li X;Ge J;Liu M;Pang X;Liu J;Luo C;Xu Y;Zhao Q
Induction of fetal hemoglobin to overcome adult β-globin gene deficiency is an effective therapeutic strategy to ameliorate human β-hemoglobinopathies. Previous work has revealed that fetal γ-globin can be translationally induced via integrated stress signaling, but other studies have indicated that activating stress may eventually suppress γ-globin expression transcriptionally. The mechanism by which γ-globin expression is regulated at the translational level remains largely unknown, limiting our ability to determine whether activating stress is a realistic therapeutic option for these disorders. In this study, we performed a functional CRISPR screen targeting protein arginine methyltransferases (PRMTs) to look for changes in γ-globin expression in K562 cells. We not only discovered that several specific PRMTs may block γ-globin transcription, but also revealed PRMT1 as a unique family member that is able to suppress γ-globin synthesis specifically at the translational level. We further identified that a non-AUG uORF within the 5’ untranslated region of γ-globin serves as a barrier for translation, which is bypassed upon PRMT1 deficiency. Finally, we found that this novel mechanism of γ-globin suppression could be pharmacologically targeted by the PRMT1 inhibitor, furamidine dihydrochloride. These data raise new questions regarding methyltransferase function and may offer a new therapeutic direction for β-hemoglobinopathies.
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影响因子:
20.3
作者:
Hahn, Cynthia K.;Lowrey, Christopher H.
通讯作者:
Lowrey, Christopher H.
DOI:
10.1073/pnas.1207846109
发表时间:
2012-09-11
影响因子:
11.1
作者:
Lee, Sooncheol;Liu, Botao;Qian, Shu-Bing
通讯作者:
Qian, Shu-Bing
DOI:
10.1126/science.aad3312
发表时间:
2016-01-15
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Masuda T;Wang X;Maeda M;Canver MC;Sher F;Funnell AP;Fisher C;Suciu M;Martyn GE;Norton LJ;Zhu C;Kurita R;Nakamura Y;Xu J;Higgs DR;Crossley M;Bauer DE;Orkin SH;Kharchenko PV;Maeda T
通讯作者:
Maeda T
影响因子:
64.5
作者:
Hussain T;Llácer JL;Fernández IS;Munoz A;Martin-Marcos P;Savva CG;Lorsch JR;Hinnebusch AG;Ramakrishnan V
通讯作者:
Ramakrishnan V
影响因子:
14.9
作者:
Gao G;Dhar S;Bedford MT
通讯作者:
Bedford MT