Retraction to: Nature Communications https://doi.org/10.1038/ncomms11996, published online 29 June 2016

The Editors have retracted this article. Concerns were raised regarding Figures 3, 4, 5 and Supplementary Figures 1 and 6. Concerns include but are not limited to overlapping or duplicated figures as well as splices in western blots. The Editors therefore no longer have confidence in the results and conclusions of this article.

Author Rong Xiang agrees with this retraction. Author Hongxin Deng disagrees with this retraction. The other authors have not responded to correspondence regarding this retraction.