○Ayako Imai¹, Hironori Izumi¹, Shuhei Kawase¹, Yuki Kitajima¹, Shuya Fukai², Keizo Takao³, Hisashi Mori¹, Tomoyuki Yoshida¹ (1. Department of Molecular Neuroscience, Faculty of Medicine, University of Toyama, 2. Graduate School of Science, Division of Chemistry, Kyoto University , 3. Life Science Research Center, University of Toyama)