About the Authors

Pedro Beltrao

To whom correspondence should be addressed. E-mail: beltrao@embl.de

Affiliation European Molecular Biology Laboratory, Structures and Computational Biology Program, Heidelberg, Germany

Luis Serrano

Affiliation European Molecular Biology Laboratory, Structures and Computational Biology Program, Heidelberg, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

PB and LS analyzed the data and wrote the paper. PB contributed reagents/materials/analysis tools.