1. Graduate
School of Engineering
Science, Osaka University, Toyonaka, Osaka
560-8531, Japan
2. Department
of Integrative Structural
and Computational Biology and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California
92037, United States
3. Section
of Laboratory Equipment, National Institute of Biomedical Innovation, 7-6-8,
Saito-Asagi, Ibaraki, Osaka 567-0085, Japan