About the Authors

Edan Foley

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

Patrick H O'Farrell

To whom correspondence should be addressed. E-mail: ofarrell@cgl.ucsf.edu

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

Competing Interests

The authors have declared that no conflicts of interest exist.

Author Contributions

EF and PHO'F conceived and designed the experiments. EF performed the experiments. EF and PHO'F analyzed the data and wrote the paper.