1. Department of Molecular Biology and Genetics; Bilkent University; 06533 Ankara Turkey
2. Department of Biochemistry; University of Shizuoka School of Pharmaceutical Sciences, Core Research for Evolutional Sciences and Technology (CREST), Japan Science and Technology Corporation, and COE Program in the 21st Century; Shizuoka Shizuoka 422-8526 Japan
3. Research Center of Advanced Bionics; National Institute of Advanced Industrial Science and Technology; Tsukuba Ibaraki 305-8565 Japan
4. Department of Molecular Design and Engineering, Graduate School of Engineering; Nagoya University, Core Research for Evolutional Sciences and Technology (CREST), Japan Science and Technology Corporation; Nagoya Aichi 464-8603 Japan
5. Department of Internal Medicine, Institute of Tropical Medicine; Nagasaki University; Nagasaki Nagasaki 852-8523 Japan
6. Division of Infectious Diseases, Institute of Scientific Research; Oita University; Yufu Oita 879-5593 Japan