About the Authors
CAS-MPG Partner Institute for Computational Biology (PICB), Shanghai, People's Republic of China
Institut de Biologia Molecular de Barcelona (IBMB-CSIC) and Institute for Research in Biomedicine (IRB), Barcelona, Spain
EMBL-Hamburg Unit, Hamburg, Gemany
Bioquant BQ0031, Universität Heidelberg, Heidelberg, Germany
Max-Planck Institute for Metals Research, Stuttgart, Germany
The authors have declared that no competing interests exist.
Conceived and designed the experiments: WS MCV MW FG. Performed the experiments: WS MCV. Analyzed the data: WS MCV FG. Contributed reagents/materials/analysis tools: WS MCV. Wrote the paper: WS MCV FG. Force distribution and evolutionary coupling: WS. Protein production, crystallization, and structure determination: MCV.