1. Laboratory for Nano-Bio Probes; Quantitative Biology Center, Riken; Suita 565-0874 Osaka Japan
2. Laboratory for Cell Signaling Dynamics; Quantitative Biology Center, Riken; Suita 565-0874 Osaka Japan
3. Laboratory of Single Molecule Biology; Department of Biological Sciences; Graduate School of Science; Osaka University; Toyonaka 560-0043 Osaka Japan