1. Graduate School of Life Science, University of Hyogo, Hyogo 678-1297, Japan
2. RIKEN SPring-8 Center, Hyogo 679-5148, Japan
3. Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
4. Department of Applied Biochemistry & Food Science, Saga University, Saga 840-8502, Japan