1. Horizontal Medical Research Organization, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
2. Department of Molecular Genetics Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
3. RIKEN, Bioresource Center, Ibaraki 305-0074, Japan
4. Experimental Research Center for Infectious Diseases, Institute for Virus Research, Kyoto University, Kyoto 606-8507, Japan
5. Medical Research Institute, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
6. Department of Molecular and Cell Genetics, School of Life Sciences, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8503, Japan
7. Department of Pathology and Biology of Diseases, Graduate School of Medicine,Kyoto University, Kyoto 606-8501, Japan