About the Authors
- Nobuhiko Tokuriki, Dan S. Tawfik
- Department of Biological Chemistry, Weizmann Institute of Science, Rehovot, Israel
- Francois Stricher, Luis Serrano
- EMBL-CRG Systems Biology Partnership Unit, CRG-Centro de Regulacion Genomica, Barcelona, Spain
The authors have declared that no competing interests exist.
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.