DegrAAAded into silence

被引:7
作者
Bayne, Elizabeth H. [1 ]
White, Sharon A. [1 ]
Allshire, Robin C. [1 ]
机构
[1] Univ Edinburgh, Wellcome Trust Ctr Cell Biol, Edinburgh EH9 3JR, Midlothian, Scotland
关键词
D O I
10.1016/j.cell.2007.05.004
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In fission yeast, RNA interference (RNAi)-dependent heterochromatin formation silences transgenes inserted at centromeres. In this issue, Buhler et al. (2007) demonstrate that the RNAi machinery directly targets transgene transcripts. Furthermore, they link transgene silencing to a protein complex resembling the TRAMP complex of budding yeast, which promotes transcript degradation via the exosome. Thus, RNAi-independent transcript degradation may also contribute to heterochromatin gene silencing.
引用
收藏
页码:651 / 653
页数:3
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