1. Department
of Chemistry, Graduate
School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0373,
Japan
2. Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Old
Addenbrookes Site, Cambridge, CB2 1GA, U.K.
3. Cellular and Molecular Biology
Unit, RIKEN Advanced Science Institute,
Wako-shi, Saitama 351-0198, Japan
4. Institute of Molecular, Cell
and Systems Biology and School of Life Sciences, College of Medical,
Veterinary and Life Sciences, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, U.K.
5. Department of Molecular Engineering,
Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan