Affiliation: | 1. Departments of Medical Chemistry and Molecular Genetics, Kyoto University Faculty of Medicine, Kyoto 606, Japan;2. Department of Biochemistry, Hamamatsu University School of Medicine, Hamamatsu 431-31, Japan;3. Department of Biochemistry, Miyazaki Medical College, Miyazaki 889-16, Japan;4. Pharmaceutical Institute, Keio University School of Medicine, Tokyo 160, Japan |