There is a potential issue in Fig. 1 in J. Cell Sci. (2009) 122, 1495-1498 (doi:10.1242/jcs.047894).
It is possible that lanes 1, 2 and 3 in Fig. 1Db may have been duplicated and flipped to create lanes 3, 2 and 1, respectively, in Fig. 1Eb. This issue was highlighted to us via the PubPeer website.
Owing to the period of time that has passed since the experiments were conducted, the original data for this study could not be found. However, the authors state that the main finding in the paper has been reproduced and widely quoted in the Hsp90 community and by many independent laboratories, so this issue does not affect the results of the study.
Without the original data, it is difficult to determine how the issues arose, so the journal is publishing this note to make readers aware of the potential duplication.
