1. Contribution from the Departments of Biochemistry and Microbiology, The University of British Columbia, Vancouver, BC, V6T 1Z3, Canada, Department of Chemistry, The University of British Columbia, Vancouver, BC, V6T 1Z1, Canada, Michael Smith Laboratories, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada, Department of Chemistry, Princeton University, Princeton, New Jersey, 08544, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis,...