1. Structural
Biology Program, Sloan-Kettering Institute, New York, New York 10065, United States
2. Genomics
Research Center, Academia Sinica, Taipei 115, Taiwan
3. Eli Lilly Inc., Indianapolis, Indiana 46285, United States
4. Howard Hughes
Medical
Institute, Structural Biology Program, Sloan-Kettering Institute, New
York, New York 10065, United States
5. Program
in Immunology and Microbial Pathogenesis, Weill Graduate School of Medical Sciences of Cornell University, New York, New York 10065, United States