About the Authors
- Wendy R. Hansen, Daniel A. Fletcher
- Biophysics Graduate Group, University of California, Berkeley, California, United States of America
- Daniel A. Fletcher
- Department of Bioengineering, University of California, Berkeley, California, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: DF WH. Performed the experiments: WH. Analyzed the data: WH. Contributed reagents/materials/analysis tools: DF. Wrote the paper: DF WH.