Arginine methylation-dependent reader-writer interplay governs growth control by E2F-1.

Arginine methylation-dependent reader-writer interplay governs growth control by E2F-1.
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DOI:
10.1016/j.molcel.2013.08.039
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发表时间:
2013-10-10
期刊:
影响因子:
16
通讯作者:
La Thangue, Nicholas B.
La Thangue, Nicholas B.
中科院分区:
生物学1区
文献类型:
--
作者:
Zheng, Shunsheng;Moehlenbrink, Jutta;Lu, Yi-Chien;Zalmas, Lykourgos-Panagiotis;Sagum, Carl A.;Carr, Simon;McGouran, Joanna F.;Alexander, Leila;Fedorov, Oleg;Munro, Shonagh;Kessler, Benedikt;Bedford, Mark T.;Yu, Qiang;La Thangue, Nicholas B.

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E2 F-1活性的不同生物学结果的基础和决定机制尚未阐明。我们描述了E2 F-1的不对称二甲基化蛋白精氨酸甲基转移酶(PRMT)1和对称二甲基化PRMT 5的残基特异性甲基化,并将标记与E2 F-1活性的不同功能后果联系起来。PRMT 1的甲基化阻碍了PRMT 5的甲基化,这增强了E2 F-1依赖性凋亡,而PRMT 5依赖性甲基化通过拮抗PRMT 1的甲基化而有利于增殖。E2 F-1促进DNA损伤细胞凋亡的能力与PRMT 1甲基化增强一致。相反,细胞周期蛋白A与E2 F-1的结合阻碍PRMT 1甲基化并增强PRMT 5甲基化,从而确保E2 F-1被锁定在其细胞周期进展模式中。Tudor结构域蛋白p100-TSN读取对称甲基化标记,并且p100-TSN的结合下调E2 F-1凋亡活性。我们的研究结果定义了一个精致的精度水平的读者-作者的相互作用,管理E2 F-1活动的生物学结果。
The mechanisms that underlie and dictate the different biological outcomes of E2F-1 activity have yet to be elucidated. We describe the residue-specific methylation of E2F-1 by the asymmetric dimethylating protein arginine methyltransferase (PRMT) 1 and symmetric dimethylating PRMT5, and relate the marks to different functional consequences of E2F-1 activity. Methylation by PRMT1 hinders methylation by PRMT5, which augments E2F-1-dependent apoptosis, whereas PRMT5-dependent methylation favours proliferation by antagonising methylation by PRMT1. The ability of E2F-1 to prompt apoptosis in DNA damaged cells coincides with enhanced PRMT1 methylation. In contrast, cyclin A binding to E2F-1 impedes PRMT1 methylation and augments PRMT5 methylation, thus ensuring that E2F-1 is locked into its cell cycle progression mode. The Tudor domain protein p100-TSN reads the symmetric methylation mark, and binding of p100-TSN down-regulates E2F-1 apoptotic activity. Our results define an exquisite level of precision in the reader-writer interplay that governs the biological outcome of E2F-1 activity.
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