Correction to: Oncogene (2007) 26, 2272–2282. doi:10.1038/sj.onc.1210016; published online 9 October 2006

Since publication of the above manuscript, the authors found that Dr K Zarbalis had not been included in the list of authors. The list is correctly shown on this page.

Dr Zarbalis is affiliated with Department of Neurology, University of California, San Francisco, CA, USA.