ROS3 is an RNA-binding protein required for DNA demethylation in Arabidopsis

Xianwu Zheng, Olga Pontes, Jianhua Zhu, Daisuke Miki, Fei Zhang, Wen-Xue Li, Kei Iida, Avnish Kapoor, Craig S. Pikaard and Jian-Kang Zhu ()
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Xianwu Zheng: University of California, Riverside, California 92521, USA
Olga Pontes: Washington University, Campus Box 1137, One Brookings Drive, St Louis, Missouri 63130, USA
Jianhua Zhu: University of Maryland, College Park, Maryland 20742, USA
Daisuke Miki: University of California, Riverside, California 92521, USA
Fei Zhang: University of California, Riverside, California 92521, USA
Wen-Xue Li: University of California, Riverside, California 92521, USA
Kei Iida: University of California, Riverside, California 92521, USA
Avnish Kapoor: University of California, Riverside, California 92521, USA
Craig S. Pikaard: Washington University, Campus Box 1137, One Brookings Drive, St Louis, Missouri 63130, USA
Jian-Kang Zhu: University of California, Riverside, California 92521, USA

Nature, 2008, vol. 455, issue 7217, 1259-1262

Abstract: Epigenetics: ROS3's role in plants In Arabidopsis, active DNA demethylation is mediated by the ROS1 subfamily of DNA glycosylases. Here, ROS3 is identified as a regulator of DNA demethylation and is proposed to act in the same pathway as ROS1. ROS3 contains an RNA recognition motif and binds small RNAs, suggesting that DNA demethylation by ROS1 might be guided by RNAs bound to ROS3.

Date: 2008
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DOI: 10.1038/nature07305

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