1. Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Aobayama 6-6-07, Sendai 980-8579, Japan
2. Center for Biological Resources and Informatics, Tokyo Institute of Technology, 4259-B65, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
3. Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland