About the Authors

Nathalie Hoang

Affiliation Université Paris VI, UMR-CNRS 7632, Paris, France

Erik Schleicher

Affiliation Freie Universität Berlin, Fachbereich Physik, Berlin, Germany

Sylwia Kacprzak

Affiliation Freie Universität Berlin, Fachbereich Physik, Berlin, Germany

Jean-Pierre Bouly

Affiliation Université Paris VI, UMR-CNRS 7632, Paris, France

Marie Picot

Affiliation Institut de Neurobiologie Alfred Fessard, CNRS UPR 2216 (NGI), Gif-sur-Yvette, France

William Wu

Affiliation Université Paris VI, UMR-CNRS 7632, Paris, France

Albrecht Berndt

Address ¤ Current address: MRC, Laboratory of Molecular Biology, Cambridge, United Kingdom

Affiliation Department of Structural Biology, Max Planck Institute of Molecular Physiology, Dortmund, Germany

Eva Wolf

Affiliation Department of Structural Biology, Max Planck Institute of Molecular Physiology, Dortmund, Germany

Robert Bittl

Affiliation Freie Universität Berlin, Fachbereich Physik, Berlin, Germany

Margaret Ahmad

To whom correspondence should be addressed. E-mail: ahmad@ccr.jussieu.fr

Affiliations Université Paris VI, UMR-CNRS 7632, Paris, France , Penn State University, Media, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

NH, ES, SK, RB, and MA conceived and designed the experiments. NH, ES, SK, JPB, WW, and MA performed the experiments. NH, ES, SK, JPB, RB, and MA analyzed the data. MP, AB, and EW contributed reagents/materials/analysis tools. MA wrote the paper.