1. RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan,
2. Research Institute of Genome-based Biofactory, National Institute of Advanced Industrial Science and Technology, 2-17-2-1 Tsukisamu-Higashi, Toyohira, Sapporo 062-8517, Japan, and
3. ERATO Glycotrilory Project, Japan Science and Technology Agency (JST), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan