1. CJ Foods R & D, CJ Cheiljedang Corporation, Seoul 100-749, Korea
2. Systems and Synthetic
Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806,
Korea
3. Department of
Biotechnology, Yonsei University, Seoul 120-749, Korea
4. Department of Cellular
and Molecular Medicine, School of Medicine, Chosun University, Gwangju 501-759, Korea