Transactivator: A New Face of Arabidopsis AGO1.
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abstract
Argonaute (AGO) proteins execute RNA-induced transcriptional and post-transcriptional gene silencing. Inthis issue of Developmental Cell, Liu etal. (2018) uncover a nuclear function for Arabidopsis AGO1 in positively regulating gene expression. AGO1, guided by small RNAs, binds to chromatin to induce target gene transcription in response to environmental stimuli.