The following sentence should be added to the Acknowledgments:
We acknowledge the European Synchrotron Radiation Facility for provision of synchrotron radiation facilities and we would like to thank Dr. Stephanie Hutin for assistance in using beamline.
The updated Acknowledgments are as shown below.
Acknowledgments
The authors thank Dr. Loquet for providing access to his lab to prepare sample and perform experiments. The authors thank Dr. Riback for discussion about his approach and the Web server. Y.F. would like to thank the European Research Council (Grant 101040138) and the Federation of European Biochemical societies (FEBS) for their financial support. We acknowledge the European Synchrotron Radiation Facility for provision of synchrotron radiation facilities and we would like to thank Dr. Stephanie Hutin for assistance in using beamline.