About the Authors

Kenneth J. Finn

Affiliation Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, California, United States of America

Joachim J. Li

Joachim.Li@ucsf.edu

Affiliation Department of Microbiology and Immunology, University of California San Francisco, San Francisco, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KJF JJL. Performed the experiments: KJF. Analyzed the data: KJF. Wrote the paper: KJF JJL.