EAR domain-containing transcription factors trigger PRC2-mediated chromatin marking in Arabidopsis.
EAR domain-containing transcription factors trigger PRC2-mediated chromatin marking in Arabidopsis.
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DOI:
10.1093/plcell/koab139
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发表时间:
2021-08-31
期刊:
影响因子:
--
通讯作者:
Calonje M
中科院分区:
文献类型:
--
作者:
Baile F;Merini W;Hidalgo I;Calonje M
Polycomb group (PcG) complexes ensure that every cell in an organism expresses the genes needed at a particular stage, time, or condition. However, it is still not fully understood how PcG complexes PcG-repressive complex 1 (PRC1) and PRC2 are recruited to target genes in plants. Recent findings in Arabidopsis thaliana support the notion that PRC2 recruitment is mediated by different transcription factors (TFs). However, it is unclear how all these TFs interact with PRC2 and whether they also recruit PRC1 activity. Here, by using a system to bind selected TFs to a synthetic promoter lacking the complexity of PcG target promoters in vivo, we show that while binding of the TF VIVIPAROUS1/ABSCISIC ACID-INSENSITIVE3-LIKE1 recapitulates PRC1 and PRC2 marking, the binding of other TFs only renders PRC2 marking. Interestingly, all these TFs contain an Ethylene-responsive element binding factor-associated Amphiphilic Repression (EAR) domain that triggers both HISTONE DEACETYLASE COMPLEX and PRC2 activities, connecting two different repressive mechanisms. Furthermore, we show that different TFs can have an additive effect on PRC2 activity, which may be required to maintain long-term repression of gene expression. The polycomb group complex PRC2 can be directed to target genes independently of PRC1 by EAR domain-containing transcription factors to mediate gene repression in Arabidopsis.
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影响因子:
9.2
作者:
Deka B;Singh KK
通讯作者:
Singh KK
DOI:
10.1073/pnas.1118678109
发表时间:
2012-05-01
影响因子:
11.1
作者:
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通讯作者:
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作者:
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通讯作者:
Mueller, Juerg
影响因子:
7.4
作者:
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通讯作者:
Rozwadowski, Kevin