1. Department of Chemistry, Graduate School of ScienceKyoto University Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606-8502 Japan
2. Institute for Biomolecular Design and Discovery (IBD), Department of ChemistryCarnegie Mellon University 4400 Fifth Avenue Pittsburgh Pennsylvania 15213 USA
3. Institute for Integrated Cell-Material Sciences (iCeMS)Kyoto University Kitashirakawa-Oiwakecho Sakyo-ku Kyoto 606-8502 Japan