J. I. Sulkowska and M. Cieplak. 2008. Stretching to understand proteins—a survey of the Protein Data Bank. Biophys. J. 94:6–13.
The editors have noted that there is a substantial overlap of figures and text between this Biophysical Journal article and Sulkowska, J. I. and Cieplak, M. 2007. Mechanical stretching of proteins—a theoretical survey of the Protein Data Bank. Journal of Physics: Condensed Matter. 19:1–60. The Biophysical Journal article does not cite the Journal of Physics: Condensed Matter article, which was already in press when the Biophysical Journal article was submitted. These actions and omissions are inconsistent with the Biophysical Journal policy which states: “Manuscripts submitted to Biophysical Journal must be original and not already published or submitted elsewhere for publication. This includes material previously submitted, as well as submissions made while Biophysical Journal is considering the manuscript. If some material that has previously been published is included, the authors are responsible for obtaining the appropriate permissions from the publishers.” We are therefore retracting the publication of the Biophysical Journal article.