Nat. Biotechnol. 24, 841–847 (2006); published online 25 June 2006; corrected after print 25 July 2006

In the print version of this article and the version initially published online, the last sentence of the URLs section in Methods, p.846, reads, “Sequence information regarding the entry clones constructed in this study is also available on our website.” The sentence should read, “Sequence information and localizome data regarding the entry clones constructed in this study are available in Supplementary Table 6 online and on the RIKEN website.” The sequence information and localizome data for the entry clones has been posted on the Nature Biotechnology website. The error have been corrected in the HTML and PDF versions of the article.