1. Department of Medicine, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, United States
2. Department of Pathology and Immunology, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, Missouri 63110, United States
3. Department of Chemistry, Washington University in St. Louis, 1 Brookings Drive, St. Louis, Missouri 63130, United States
4. Donnelly Centre for Cellular and Biomolecular Research, Banting and Best Department of Medical Research, University of Toronto, 816-160 College Street, Toronto, Ontario M5S 3E1, Canada
5. Center for Microbial Pathogenesis, Institute for Biomedical Sciences, Georgia State University, 100 Piedmont Avenue, Atlanta, Georgia 30303, United States
6. Department of Biophysics, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390, United States