1. Astex Pharmaceuticals, Inc. (formerly known as SuperGen, Inc.), 4140 Dublin Boulevard, Suite 200, Dublin, California 94568, United States
2. Laboratory
of Bacterial Pathogenesis and Immunology, The Rockefeller University, New
York, New York 10065, United States
3. Laboratory of Structural Microbiology, The Rockefeller University, New York, New York 10065, United States