1. Department
of Computational Biology and Medical Sciences, Graduate School of
Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8562, Japan
2. Institute
of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
3. Center
for Emerging Infectious Diseases, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1194, Japan
4. School
of Life Science and Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan