Nat. Cell Biol. 15, 647–658 (2013); published online 21 April 2013; corrected online 25 April 2013

In the version of this Article originally published, in the Methods section, Supplementary Table S8 was incorrectly cited as listing lipid metabolism gene-specific primers under the heading 'RNA extraction, quantitative PCR and statistical analysis'. The list of gene-specific primers has now been uploaded as Supplementary Table S10 and the citation in the Methods has been amended. This has been corrected in the PDF and HTML versions of this Article.