About the Authors

Nobuhiko Tokuriki

Affiliation Department of Biological Chemistry, Weizmann Institute of Science, Rehovot, Israel

Francois Stricher

Affiliation EMBL-CRG Systems Biology Partnership Unit, CRG-Centro de Regulacion Genomica, Barcelona, Spain

Luis Serrano

Affiliation EMBL-CRG Systems Biology Partnership Unit, CRG-Centro de Regulacion Genomica, Barcelona, Spain

Dan S. Tawfik

tawfik@weizmann.ac.il

Affiliation Department of Biological Chemistry, Weizmann Institute of Science, Rehovot, Israel

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NT DT. Performed the experiments: NT. Analyzed the data: NT. Contributed reagents/materials/analysis tools: FS LS. Wrote the paper: NT DT.