Erratum: TFIIH: when transcription met DNA repair

Nature Reviews Molecular Cell Biology 13, 343–354 (2012) There was an error in table 1 on page 345 of this article: XPD is a 5' to 3' ATP-dependent helicase and not a 3' to 5' ATP-dependent helicase. This has been corrected online. We apologize for any confusion caused to readers.