Nature Reviews Cancer 14, 187–198 (2014)

In the original version of this article, several references were incorrect. References 13, 29, 34, 41, 88, 89, 90 and 91 were incorrect and have now been replaced with the correct citations. In addition, reference 59 was incorrectly cited in the first sentence of the “Speckle-type POZ protein (SPOP)” subsection at the top of page 195, and this has now been removed. All of these corrections have been made online.