1. Department of Microbiology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
2. Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
3. Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
4. Department of Physics and Center for the Physics of Living Cells, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
5. Bacteriology Division, U.S. Army Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland 21702, United States
6. Department of Crop Sciences, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
7. Howard Hughes Medical Institute, Chevy Chase, Maryland 20815, United States