1. Institute for Protein Research, Osaka University, Suita 565-0871, Japan
2. Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
3. NTT Space Environment and Energy Laboratories, Nippon Telegraph and Telephone Corporation, Tokyo 180-8585, Japan
4. Faculty of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki 569-8686, Japan