1. Faculty of Life Science, Hokkaido University, Sapporo 060-0810, Japan
2. RIKEN Systems and Structural Biology Center, Yokohama 230-0045, Japan
3. College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Ehime 790-8578, Japan
4. Graduate School of Pharmaceutical
Sciences, Toho University, Funabashi, Chiba
274-8510, Japan
5. Department
of Life Science and
Institute of Biological Interfaces, Sogang University, Seoul 121-742, Korea
6. Department
of Biophysics and Biochemistry,
Graduate School of Science, University of Tokyo, Tokyo 113-0033, Japan