1. Protein Structure Section, Macromolecular
Crystallography Laboratory, National Cancer Institute, Frederick, Maryland 21702, United States
2. Department of Food Science, University of Guelph, Guelph, Ontario, Canada N1G 2W1
3. Department of Medicinal Chemistry
and Center for Frontier Research in Medicinal Science, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto
607-8412, Japan
4. Laboratory
of Medicinal Chemistry, Kobe Gakuin University, 1-1-3 minatojima, Chuo-ku,
Kobe 650-8586, Japan
5. Laboratory
of Peptide Science, Nagahama Institute of Bio-Science and Technology, Nagahama,
Shiga 526-0829, Japan