1. Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
2. Department of Microbiology and Immunology, UCSF School of Medicine, San Francisco, California, USA
3. Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
4. Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
5. Center for Structural Genomics of Infectious Diseases (CSGID), Chicago, Illinois, USA