About the Authors

Emmanuel D Levy

To whom correspondence should be addressed. E-mail: elevy@mrc-lmb.cam.ac.uk

Affiliation Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom

Jose B Pereira-Leal

¤ Current address: Instituto Gulbenkian de Ciencia, Oeiras, Portugal

Affiliation Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom

Cyrus Chothia

Affiliation Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom

Sarah A Teichmann

Affiliation Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

EDL, JBPL, CC, and SAT conceived and designed the experiments. EDL performed the experiments. EDL, JBPL, CC, and SAT analyzed the data. EDL and SAT wrote the paper.