Notes

+Present address: Computational Structural Biology Research Unit, Research Division, RIKEN Advanced Institute for Computational Science, 7-1-26 Minatojima-minami-machi, Chuo-ku, Kobe, Hyogo 650-0047, Japan.

++Present address: NTT Software Innovation Center, 3-9-11 Midori-cho, Musashino-shi, Tokyo 180-8585, Japan.

+++Present address: Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.