Nature Communications 2, Article number: 160 (2011); Published: 18 January 2011; Updated: 7 February 2012

The authors wish to add Takayuki Katoh, who was originally included in the Acknowledgements, to the author list of this Article for contributing to the design of the protein-driven ON system and synthetic shRNAs and evaluating the experimental results. The complete author list and contact details for Takayuki Katoh are as follows:

Hirohide Saito, Yoshihiko Fujita, Shunnichi Kashida, Karin Hayashi, Takayuki Katoh1 & Tan Inoue

1Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan.