About the Authors
Sony Computer Science Laboratories, Shinagawa-ku, Tokyo, Japan
Sony Corporation, Shinagawa-ku, Tokyo, Japan
The Systems Biology Institute, Shinjuku-ku, Tokyo, Japan
Okinawa Institute of Science and Technology, Kunigami, Okinawa, Japan
The authors have declared that no competing interests exist.
Conceived and designed the experiments: TS SM HK. Performed the experiments: TS. Analyzed the data: TS SM. Contributed reagents/materials/analysis tools: TS SM. Wrote the paper: TS HK.