1. Department of Molecular Biology
and Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La
Jolla, California 92037, United States
2. Institute for Biological Resources
and Functions, AIST, 1-1-1 Higashi, Tsukuba,
Ibaraki 305-8566, Japan
3. Department
of Life Sciences, Graduate
School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba,
Meguro, Tokyo 153-8902, Japan
4. PRESTO, JST, 4-1-8 Honcho, Kawaguchi,
Saitama 332-0012, Japan