1. Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
2. Hamachi Innovative Molecular Technology for Neuroscience, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Kyoto 615-8530, Japan
3. Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
4. Department of Biochemistry and Systems Biomedicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
5. Laboratory for Synthetic Biology, RIKEN Center for Biosystems Dynamics Research, Osaka 565-5241, Japan
6. Department of Systems Pharmacology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
7. Department of Neurophysiology, Keio University School of Medicine, Tokyo 160-8582, Japan