About the Authors

José N. Onuchic
Center for Theoretical Biological Physics and Department of Physics, Rice University, Houston, Texas, United States of America

Corresponding Author

jonuchic@rice.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HL JKN JNO. Performed the experiments: HL JKN. Analyzed the data: HL. Wrote the paper: HL JKN JNO. Wrote the software: JKN HL.