1. Biometal Science Laboratory, RIKEN SPring-8 Center; Kouto, Sayo, Hyogo 679-5148 Japan
2. Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University; Kyoto 606-8502 Japan
3. Department of Life Science, Graduate School of Life Science, University of Hyogo; Hyogo 678-1297 Japan
4. Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University; Tottori 680-8552 Japan
5. Division of Life Science, Graduate School of Natural Science and Technology, Kanazawa University; Ishikawa 920-1192 Japan