Geminiviruses employ host DNA glycosylases to subvert DNA methylation-mediated defense.
Geminiviruses employ host DNA glycosylases to subvert DNA methylation-mediated defense.
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双生病毒利用宿主DNA糖基化酶来破坏DNA甲基化介导的防御。
DOI:
10.1038/s41467-022-28262-3
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发表时间:
2022-01-31
影响因子:
16.6
通讯作者:
Zhou X
中科院分区:
文献类型:
--
作者:
Gui X;Liu C;Qi Y;Zhou X
DNA methylation is an epigenetic mechanism that plays important roles in gene regulation and transposon silencing. Active DNA demethylation has evolved to counterbalance DNA methylation at many endogenous loci. Here, we report that active DNA demethylation also targets viral DNAs, tomato yellow leaf curl China virus (TYLCCNV) and its satellite tomato yellow leaf curl China betasatellite (TYLCCNB), to promote their virulence. We demonstrate that the βC1 protein, encoded by TYLCCNB, interacts with a ROS1-like DNA glycosylase in Nicotiana benthamiana and with the DEMETER (DME) DNA glycosylase in Arabidopsis thaliana. The interaction between βC1 and DME facilitates the DNA glycosylase activity to decrease viral DNA methylation and promote viral virulence. These findings reveal that active DNA demethylation can be regulated by a viral protein to subvert DNA methylation-mediated defense. Plants tightly regulate DNA methylation to regulate gene expression. Here, the authors show that the tomato yellow leaf curl China virus βC1 protein interacts with plant DNA glycosylases to promote demethylation of viral DNA and promote virulence.
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影响因子:
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作者:
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通讯作者:
Zhou, XP
影响因子:
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14.9
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ERMAK, G;PASZKOWSKI, U;PASZKOWSKI, J
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PASZKOWSKI, J
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