1. Division of Biological Science, Graduate School of Science, Nagoya University; Nagoya Japan
2. CREST, Japan Science and Technology Agency; Saitama Japan
3. Structural Biology Research Center, Graduate School of Science, Nagoya University; Nagoya Japan
4. RIKEN SPring-8 Center, Harima Institute; Hyogo Japan
5. PRESTO, Japan Science and Technology Agency; Saitama Japan