1. Laboratory of Biopharmacy, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
2. Department of Bioregulation and Pharmacological Medicine, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan
3. Department of Chemical and Biological Engineering, A301 EQUAD, Princeton University, Princeton, NJ 80544, USA