About the Authors

Karen S. Kim Guisbert, Hao Li, Christine Guthrie
Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, California, United States of America

Corresponding Author

guthrie@biochem.ucsf.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

KSKG conceived and designed the experiments. KSKG performed the experiments. KSKG and CG analyzed the data. HL contributed reagents/materials/analysis tools. CG supervised all research. KSKG wrote the paper.