About the Authors

Liang Chen

liang.chen@usc.edu

Affiliation Molecular and Computational Biology, Department of Biological Sciences, University of Southern California, Los Angeles, California, United States of America

Sika Zheng

Affiliation Department of Microbiology, Immunology, and Molecular Genetics, Howard Hughes Medical Institute, University of California Los Angeles, Los Angeles, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LC. Performed the experiments: LC SZ. Analyzed the data: LC. Contributed reagents/materials/analysis tools: SZ. Wrote the paper: LC SZ.