| Literature DB >> 19903758 |
Xin-Jian He1, Yi-Feng Hsu, Shihua Zhu, Hai-Liang Liu, Olga Pontes, Jianhua Zhu, Xinping Cui, Co-Shine Wang, Jian-Kang Zhu.
Abstract
RNA-directed DNA methylation (RdDM) is a conserved mechanism for epigenetic silencing of transposons and other repetitive elements. We report that the rdm4 (RNA-directed DNA Methylation4) mutation not only impairs RdDM, but also causes pleiotropic developmental defects in Arabidopsis. Both RNA polymerase II (Pol II)- and Pol V-dependent transcripts are affected in the rdm4 mutant. RDM4 encodes a novel protein that is conserved from yeast to humans and interacts with Pol II and Pol V in plants. Our results suggest that RDM4 functions in epigenetic regulation and plant development by serving as a transcriptional regulator for RNA Pol V and Pol II, respectively.Entities:
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Year: 2009 PMID: 19903758 PMCID: PMC2788325 DOI: 10.1101/gad.1851809
Source DB: PubMed Journal: Genes Dev ISSN: 0890-9369 Impact factor: 11.361