1. Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan;
2. Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX, USA;
3. National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan;
4. Division of Neurology, Respirology and Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Kiyotake, Miyazaki, Japan
5. Center for Research and Education on Drug Discovery, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan;