About the Authors

David L Bostick

Affiliations Department of Molecular Biology, The Scripps Research Institute, La Jolla, California, United States of America , Center for Theoretical Biological Physics, University of California San Diego, La Jolla, California, United States of America

Charles L. Brooks III

To whom correspondence should be addressed. E-mail brooks@scripps.edu

Affiliations Department of Molecular Biology, The Scripps Research Institute, La Jolla, California, United States of America , Center for Theoretical Biological Physics, University of California San Diego, La Jolla, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

DLB and CLB conceived and designed the experiments. DLB performed the experiments, analyzed the data, and wrote the paper.