About the Authors

Gerd Prehna

Affiliations Center for Structural Biology, Research Resources Center, University of Illinois at Chicago, Chicago, Illinois, United States of America, Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, Illinois, United States of America

Benjamin E. Ramirez

Affiliations Center for Structural Biology, Research Resources Center, University of Illinois at Chicago, Chicago, Illinois, United States of America, Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois, United States of America

Andrew L. Lovering

a.lovering@bham.ac.uk

Affiliation Institute of Microbiology & Infection, School of Biosciences, University of Birmingham, Birmingham, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GP. Performed the experiments: GP BER. Analyzed the data: GP ALL. Contributed reagents/materials/analysis tools: GP BER ALL. Contributed to the writing of the manuscript: GP ALL.