CARM1 mediates modulation of Sox2.

CARM1 mediates modulation of Sox2.
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CARM1 介导 Sox2 的调节

DOI:
10.1371/journal.pone.0027026
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Shen YF
Shen YF
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Zhao HY;Zhang YJ;Dai H;Zhang Y;Shen YF

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Sox 2是维持胚胎干细胞(ESC)多能状态的转录因子网络的关键组成部分。Sox 2受多种翻译后修饰的调控,包括泛素化、类泛素化、乙酰化和磷酸化。在这里,我们报告说,Sox 2是在协会和甲基化的辅激活相关精氨酸甲基转移酶1(CARM1),蛋白质精氨酸甲基转移酶,在胚胎干细胞中起着关键作用。我们发现,CARM1促进Sox 2介导的反式激活,并直接甲基化Sox 2的精氨酸113。这种甲基化事件增强了Sox 2的自我缔合。此外,Sox 2在染色质上的生理保留限制了Sox 2甲基化水平。我们的研究揭示了CARM1对Sox 2的直接调节,揭示了精氨酸甲基化信号如何整合到多能转录因子网络中。
Sox2 is a key component of the transcription factor network that maintains the pluripotent state of embryonic stem cells (ESCs). Sox2 is regulated by multiple post-translational modifications, including ubiquitination, sumoylation, acetylation and phosphorylation. Here we report that Sox2 is in association with and methylated by coactivator-associated arginine methyltransferase 1 (CARM1), a protein arginine methyltransferase that plays a pivotal role in ESCs. We found that CARM1 facilitates Sox2-mediated transactivation and directly methylates Sox2 at arginine 113. This methylation event enhances Sox2 self-association. Furthermore, the physiological retention of Sox2 on chromatin restricts the Sox2 methylation level. Our study reveals the direct regulation of Sox2 by CARM1 that sheds lights on how arginine methylation signals are integrated into the pluripotent transcription factor network.
组蛋白精氨酸甲基化调节早期小鼠胚胎中的多能性。
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