1. Department of Molecular Physiology and Biophysics, Faculty of Medical Sciences, University of Fukui, Matsuoka, Yoshida, Fukui, 910-1193, Japan, Institute of Advanced Energy, Kyoto University, Gokasho, Uji, 611-0011, Japan, and Department of Applied Biology, Faculty of Textile Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan