1. RIKEN Structural Biology Laboratory, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
2. RIKEN Systems and Structural Biology Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
3. Division of Structural and Synthetic Biology, RIKEN Center for Life Science Technologies, 1-7-22
Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan