About the Authors

Gilles Charvin

To whom correspondence should be addressed. E-mail: gilles.charvin@gmail.com

Affiliation Center For Studies in Physics and Biology, The Rockefeller University, New York, New York, United States of America

Frederick R. Cross

Affiliation The Rockefeller University, New York, New York, United States of America

Eric D. Siggia

Affiliation Center For Studies in Physics and Biology, The Rockefeller University, New York, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ES GC FC. Performed the experiments: GC. Analyzed the data: ES GC FC. Wrote the paper: ES GC FC.