Affiliation: | (1) Department of Experimental Chemotherapy, Research Institute for Microbial Diseases, Osaka University, 565 Suita, Osaka, Japan;(2) Central Research Laboratories, Takara Shuzo, Otsu, 520-21 Shiga, Japan;(3) 5th Department, Protein Engineering Research Institute, 6-2-3 Furuedai, Suita, 565 Osaka, Japan |