In the letter by Miyanari et al. (Nature Cell Biol. 9, 1089–1097), Kunitada Shimotohno's affiliations were incorrectly listed.

His affiliations should have been listed as 1, 2 and 6.

1Department of Viral Oncology, Institute for Virus Research, Kyoto University, Kyoto 606-8507, Japan.

2Graduate School of Biostudies, Kyoto University, Kyoto 606-8507, Japan.

6Correspondence should be addressed to K.S. (e-mail:shimkuni@z8.keio.jp).