1. College of Science and Technology, Nihon University, 1-8 Kanda Surugadai, Chiyoda-ku, Tokyo 101-8308, Japan, College of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi-shi, Chiba 274-8555, Japan, and Department of Biochemistry and Molecular Biology, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-0841, Japan