1. The Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
2. Department of Medical Management and Informatics, Hokkaido Information University, 59-2, Nishi Nopporo, Ebetsu, Hokkaido 069-8585, Japan
3. Genaris, Inc., 75-1 Ono-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0046, Japan
4. Department of Biochemistry and Molecular Biology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo 113-8602, Japan