Correction to: Cell Death and Disease (2014) 5, e1546; doi:10.1038/cddis.2014.484; published online 27 November 2014.

Since the publication of this article, it has been noted that Supplementary Figure 3 was identical to Supplementary Figure 4.

The corrected supplementary files appear online together with this erratum. The publishers would like to apologize for any inconvenience caused.