Affiliation: | a Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, Ont., Canada N9B3P4 b Departments of Pharmacology, Cellular and Molecular Medicine, and Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093-0721, United States c Department of Microbiology and Molecular Genetics, Harvard University Medical School, Boston, MA 02115, United States d Department of Chemistry, Purdue University, West Lafayette, IN 47907, United States e University of California, San Francisco, 513 Parnassus Avenue, Medical Sciences Building, S-1245, S-1255, S-1269, San Francisco, CA 94143, United States |