About the Authors

Lucy J. Colwell

ljc37@cam.ac.uk

Affiliation University Chemical Laboratory, Cambridge University, Cambridge, United Kingdom

Michael P. Brenner

Affiliation School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, United States of America

Andrew W. Murray

Affiliation FAS Center for Systems Biology, Harvard University, Cambridge, Massachusetts, United States of America

Competing Interests

This research was funded in part by Roche Pharmaceuticals. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: LJC MPB AWM. Performed the experiments: LJC MPB AWM. Analyzed the data: LJC MPB AWM. Contributed reagents/materials/analysis tools: LJC MPB AWM. Wrote the paper: LJC MPB AWM.