DRB proteins can impair dsRNA processing.
[No authors listed]
摘要
mutant plants, suggesting that DRB7.1 can antagonize the function of DRB4 in siRNA accumulation in vivo as well as in vitro. Specifically, enhanced accumulation of siRNAs from an endogenous inverted repeat correlated with enhanced DNA methylation, suggesting a biological impact for DRB7.1 in regulating epigenetic marks. We further demonstrate that RNase three-like (RTL) proteins RTL1 and RTL2 cleave dsRNA when expressed in BYL, and that this activity is impaired by DRB7.1/DRB4. Investigating the DRB7.1-DRB4 interaction thus revealed that a complex of DRB proteins can antagonize, rather than promote, RNase III activity and production of siRNAs in plants.
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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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