About the Authors

Amanda K. Frank

Affiliation Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, California, United States of America

Duy C. Tran

Affiliation Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, California, United States of America

Roy W. Qu

Affiliation Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, California, United States of America

Bradley A. Stohr

Affiliation Department of Pathology, University of California, San Francisco, San Francisco, California, United States of America

David J. Segal

Affiliation Genome Center and Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, California, United States of America

Lifeng Xu

lfxu@ucdavis.edu

Affiliation Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AKF LX. Performed the experiments: AKF DCT RWQ LX. Analyzed the data: AKF DCT RWQ LX. Contributed reagents/materials/analysis tools: BAS DJS. Wrote the paper: AKF LX.