1. Division of Biomodeling (N.N., S.Y., A.N., T.Ya., T.W., T.A., S.E., T.Yo.), Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan
2. Department of Biophysics and Biochemistry (T.O., Y.F.), Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
3. Roslin Institute (P.J.S.), Roslin, Midlothian EH25 9PS, United Kingdom
4. Institute for Advanced Research (T.Yo.), Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan