Adaptor proteins GIR1 and GIR2. II. Interaction with the co-repressor TOPLESS and promotion of histone deacetylation of target chromatin.
[No authors listed]
摘要
Understanding how root hair development is controlled is important for understanding of many fundamental aspects of plant biology. Previously, we identified two plant-specific adaptor proteins GIR1 and GIR2 that interact with the major regulator of root hair development GL2 and suppress formation of root hair. Here, we show that GIR1 and GIR2 also interact with the co-repressor TOPLESS (TPL). This interaction required the GIR1 protein EAR motif, and was essential for the transcriptional repressor activity of GIR1. Both GIR1 and GIR2 promoted histone hypoacetylation of their target chromatin. Potentially, GIR1 and GIR2 might may link TPL to and participate in epigenetic regulation of root hair development.
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基因功能
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原始数据
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文献解读
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