Development of an ab initio MO-MD program based on fragment MO method - an attempt to analyze the fluctuation of protein

被引:22
作者
Ishimoto, T
Tokiwa, H
Teramae, H
Nagashima, U
机构
[1] Natl Inst Adv Ind Sci & Technol, Grid Technol Res Ctr, Tsukuba, Ibaraki 3058561, Japan
[2] Rikkyo Univ, Fac Sci, Dept Chem, Toshima Ku, Tokyo 1718501, Japan
[3] NTT Corp, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
关键词
D O I
10.1016/j.cplett.2004.01.105
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In order to analyze the fluctuation of proteins, which plays an important role for folding structure and stability, an ab initio MO-MD program (FMO-HA) based on the fragment MO method has been developed and examined its efficiency in comparison with conventional RHF MO-MD. FMO gives the same potential of dissociation energy between fragments as well as RHF. FMO-HA and RHF MO-MD calculations show similar trajectories and geometrical changes. Furthermore. FMO-HA simulation enables us to elucidate the interaction energy between fragments accompanying with the dynamics. FMO-HA method is an efficient tool to determine the driving force of fluctuation of proteins. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:460 / 465
页数:6
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