1. Suntory Institute for Bioorganic Research (M.A., T.K., T.Sa., T.Se., H.S.), Osaka 618-8503, Japan
2. Division of Innovative Research, Creative Research Initiative (M.F.), Hokkaido University, Sapporo 060-1113, Japan
3. Department of Bioscience and Informatics (K.H., K.O.), Faculty of Science and Technology, Keio University, Yokohama 232-8522, Japan
4. Department of Zoology (N.S.), Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan