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    A Pumilio-induced RNA structure switch in p27-3′ UTR controls miR-221 and miR-222 accessibility

    Quiescent cells contain high levels of both the cell cycle inhibitor p27, and the miRNAs that should negatively regulate it. In response to growth factor, the RNA-binding protein PUM1 interacts with the 3′UTR ...

    Martijn Kedde, Marieke van Kouwenhove, Wilbert Zwart in Nature Cell Biology (2010)