1. Pharmaceutical Research Laboratories, Kirin Brewery Company Ltd., 3 Miyahara-cho, Takasaki 370-1295, Japan, Central Laboratories for Key Technology, Kirin Brewery Company Ltd., 1-13-5 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan, Division of Biological Sciences, Graduate School of Science, Hokkaido University, Kita-ku, Sapporo 060-0810, Japan, Laboratory of Applied Microbiology, Faculty of Agriculture, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan, and Institute for Protein Research...