About the Authors

Yun E. Wang

Affiliation Division of Biology, California Institute of Technology, Pasadena, California, United States of America

Georgi K. Marinov

Affiliation Division of Biology, California Institute of Technology, Pasadena, California, United States of America

Barbara J. Wold

Affiliation Division of Biology, California Institute of Technology, Pasadena, California, United States of America

David C. Chan

dchan@caltech.edu

Affiliations Division of Biology, California Institute of Technology, Pasadena, California, United States of America, Howard Hughes Medical Institute, California Institute of Technology, Pasadena, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YEW DCC. Performed the experiments: YEW. Analyzed the data: YEW GKM. Wrote the manuscript: YEW GKM BJW DCC.