Affiliation: | a Department of Biochemistry and Molecular Biology, College of Medicine, Hanyang University, # 17 Haengdang-dong, Sungdong-gu, Seoul 133-791, Republic of Korea b Department of Microbiology, College of Medicine, Hanyang University, Seoul 133-791, Republic of Korea c Department of Medical Research Center, College of Medicine, Hanyang University, Seoul 133-791, Republic of Korea |