1. Department of Medicinal Chemistry, Faculty of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan and CREST, Japan Science and Technology Corporation, JST, Japan, Department of Biochemistry & Biomolecular Recognition and Central Laboratory for Biomedical Research and Education, Yamaguchi University School of Medicine, Ube 755-8505, Japan, and Single-molecule Bioanalysis Laboratory, National Institute of Advanced Industrial Science and Technology (AIST), Hayashi-cho 2217-14,...