Nature Cell Biol. 12, 330–340 (2010); published online 14 March 2010; corrected after print, 22 March 2010

In the version of this article initially published online and in print, 'LAMP-1' was incorrectly written as 'LAMP-2'. The definition of AP-1 has been corrected to 'adaptor protein 1' from 'activator protein'. The following sentence has been added to the acknowledgements 'T.Kirchhausen's research was supported by the NIH grant GM075252.'

These errors have been corrected in both the HTML and PDF versions of the article.