1. Department
of Biochemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
2. Department
of Pharmaceutical Chemistry, University of California—San Francisco, San Francisco, California 94158, United States
3. Department
of Chemistry, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
4. Department
of Pathobiological Sciences, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
5. Photon
Sciences Directorate, Brookhaven National Laboratories, Upton, New York 11973, United States
6. Ontario Institute
of Cancer Research and Faculty of Pharmacy, University of Toronto, Toronto, Canada
7. Department
of Bacteriology, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States