1. Department of Biotechnology, Division of Advance Science and BiotechnologyGraduate School of EngineeringOsaka University 2-1 Yamadaoka Suita, Osaka 565-0871 Japan
2. Department of Applied Environmental BiologyGraduate School of Pharmaceutical SciencesOsaka University, 1-6 Yamadaoka Suita Osaka 565-0871 Japan