About the Authors

Petra L. Kohler

Affiliation Department of Microbiology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America

Seth D. Greenwood

Affiliation Department of Microbiology, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America

Suba Nookala

Affiliation Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati Medical School, Cincinnati, Ohio, United States of America

Malak Kotb

Affiliation Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati Medical School, Cincinnati, Ohio, United States of America

David M. Kranz

Affiliation Department of Biochemistry, School of Molecular and Cellular Biology, University of Illinois, Urbana, Illinois, United States of America

Patrick M. Schlievert

patrick-schlievert@uiowa.edu

Affiliation Department of Microbiology, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PLK SDG SN MK DMK PMS. Performed the experiments: PLK SDG SN PMS. Analyzed the data: PLK SDG SN MK DMK PMS. Contributed reagents/materials/analysis tools: MK DMK PMS. Wrote the paper: PLK SDG SN MK DMK PMS.