1. Faculty of Advanced Life Science, Frontier Research Center for the Post-Genome Science and Technology, Hokkaido University, Kita 21, Nishi11, Sapporo 001-0021, Japan
2. Corporate Research & Development Division, Takasago International Corporation, 4-11, 1-Chome, Nishi-yawata, Hiratsuka city, Kanagawa 254-0073, Japan