1. Japan Science and Technology Agency (JST), ERATO Ito Glycotrilogy Project; 2-1 Hirosawa Wako Saitama 351-0198 Japan
2. SUNTORY Bioorganic Research Institute; 8-1-1 Seikadai Seika-cho Soraku-gun Kyoto 619-0284 Japan
3. Department of Biotechnology, College of Life Sciences; Ritsumeikan University; 1-1-1 Noji-higashi Kusatsu Shiga 525-8577 Japan
4. Synthetic Cellular Chemistry Laboratory; RIKEN; 2-1 Hirosawa Wako Saitama 351-0198 Japan