Correction to: Cell Death and Differentiation (2012) 19, 378–386; doi:10.1038/cdd.2011.127; published online 7 October 2011

Since the publication of this article, the authors above have noticed that the column graphs of Figure 6e and f were incorrect in its online version.

This error has now been rectified, and the correct article appears in this issue. The html and online pdf versions have also been rectified, and now carry the correct paper.

The authors apologize for any inconvenience caused.