About the Authors

Niu Huang

huangniu@nibs.ac.cn

Affiliations National Institute of Biological Sciences, Beijing, Beijing, China, Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, California, United States of America

Matthew P. Jacobson

Affiliation Department of Pharmaceutical Chemistry, 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: NH MPJ. Performed the experiments: NH. Analyzed the data: NH. Wrote the paper: NH MPJ.