About the Authors

D. Kesley Robertson

Affiliation Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri, United States of America

Ling Gu

Affiliation Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri, United States of America

Regina K. Rowe

Affiliation Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri, United States of America

Wandy L. Beatty

beatty@borcim.wustl.edu

Affiliation Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, Missouri, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DKR RKR WLB. Performed the experiments: DKR LG RKR WLB. Analyzed the data: DKR LG RKR WLB. Wrote the paper: WLB.