1. Departments of Pharmacology, Cellular and Molecular Medicine, and Chemistry and Biochemistry
2. Department of Medicine, Section of Digestive Diseases and Nutrition, University of Illinois at Chicago, Chicago, IL 60612
3. Department of Cell Biology, The Scripps Research Institute, La Jolla, CA 92037
4. Banting and Best Department of Medical Research and Department of Medical Genetics and Microbiology, University of Toronto, Toronto, Ontario M5S 3E1, Canada
5. The Howard Hughes Medical Institute, University of California, San Diego, La Jolla, CA 92093
6. Department of Protein Engineering, Genentech Inc., South San Francisco, CA 94080