[1] Hokkaido Univ, Struct Biol Lab, Grad Sch Pharmaceut Sci, Kita Ku, Sapporo, Hokkaido 0600812, Japan
[2] Tokyo Inst Technol, Integrated Res Inst, Yokohama, Kanagawa 2268503, Japan
[3] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan