EBS is a bivalent histone reader that regulates floral phase transition in Arabidopsis.
EBS is a bivalent histone reader that regulates floral phase transition in Arabidopsis.
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DOI:
10.1038/s41588-018-0187-8
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发表时间:
2018-09
期刊:
影响因子:
30.8
通讯作者:
Zhong X
中科院分区:
文献类型:
--
作者:
Yang Z;Qian S;Scheid RN;Lu L;Chen X;Liu R;Du X;Lv X;Boersma MD;Scalf M;Smith LM;Denu JM;Du J;Zhong X
The ability of cells to perceive and translate versatile cues into differential chromatin and transcriptional states is critical for many biological processes. In plants, timely transition to a flowering state is crucial for successful reproduction. EARLY BOLTING IN SHORT DAY (EBS) is a negative transcriptional regulator that prevents premature flowering in Arabidopsis thaliana. We found that EBS contains bivalent bromo-adjacent homology (BAH)-plant homeodomain (PHD) reader modules that bind H3K27me3 and H3K4me3, respectively. We observed co-enrichment of a subset of EBS-associated genes with H3K4me3, H3K27me3, and Polycomb repressor complex 2 (PRC2). Notably, EBS adopted an autoinhibition mode to mediate its switch in binding preference between H3K27me3 and H3K4me3. This binding balance was critical because disruption of either EBS-H3K27me3 or EBS-H3K4me3 interaction induced early floral transition. Our results identify a bivalent chromatin reader capable of recognizing two antagonistic histone marks, and we propose a distinct mechanism of interaction between active and repressive chromatin states.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1016/j.bbagrm.2014.04.001
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Biochimica et biophysica acta
影响因子:
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