About the Authors

Van M. Savage

Contributed equally to this work with: Van M. Savage, Eric J. Deeds

Affiliation Department of Systems Biology, Harvard Medical School, Boston, Massachusetts, United States of America

Eric J. Deeds

Contributed equally to this work with: Van M. Savage, Eric J. Deeds

Affiliation Department of Systems Biology, Harvard Medical School, Boston, Massachusetts, United States of America

Walter Fontana

walter@hms.harvard.edu

Affiliation Department of Systems Biology, Harvard Medical School, Boston, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: VMS. Analyzed the data: VMS EJD. Contributed reagents/materials/analysis tools: VMS EJD. Wrote the paper: VMS EJD WF.