Arginine methylation controls growth regulation by E2F-1

Er Chieh Cho, Shunsheng Zheng, Shonagh Munro, Geng Liu, Simon M. Carr, Jutta Moehlenbrink, Yi Chien Lu, Lindsay Stimson, Omar Khan, Rebecca Konietzny, Joanna McGouran, Amanda S. Coutts, Benedikt Kessler, David J. Kerr, Nicholas B.La Thangue

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153 引文 斯高帕斯(Scopus)


E2F transcription factors are implicated in diverse cellular functions. The founding member, E2F-1, is endowed with contradictory activities, being able to promote cell-cycle progression and induce apoptosis. However, the mechanisms that underlie the opposing outcomes of E2F-1 activation remain largely unknown. We show here that E2F-1 is directly methylated by PRMT5 (protein arginine methyltransferase 5), and that arginine methylation is responsible for regulating its biochemical and functional properties, which impacts on E2F-1-dependent growth control. Thus, depleting PRMT5 causes increased E2F-1 protein levels, which coincides with decreased growth rate and associated apoptosis. Arginine methylation influences E2F-1 protein stability, and the enhanced transcription of a variety of downstream target genes reflects increased E2F-1 DNA-binding activity. Importantly, E2F-1 is methylated in tumour cells, and a reduced level of methylation is evident under DNA damage conditions that allow E2F-1 stabilization and give rise to apoptosis. Significantly, in a subgroup of colorectal cancer, high levels of PRMT5 frequently coincide with low levels of E2F-1 and reflect a poor clinical outcome. Our results establish that arginine methylation regulates the biological activity of E2F-1 activity, and raise the possibility that arginine methylation contributes to tumourigenesis by influencing the E2F pathway.

頁(從 - 到)1785-1797
期刊EMBO Journal
出版狀態已發佈 - 4月 4 2012

ASJC Scopus subject areas

  • 神經科學 (全部)
  • 分子生物學
  • 生物化學、遺傳與分子生物學 (全部)
  • 免疫學與微生物學 (全部)


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