Energy landscapes of model polyalanines
Energy landscapes of model polyalanines
复制标题
模型聚丙氨酸的能量景观
DOI:
--
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
D. Wales
中科院分区:
文献类型:
--
作者:
Paul N. Mortenson;David A. Evans;D. Wales
A parallel searching algorithm based on eigenvector-following is used to generate databases of minima and transition states for all-atom models of Ac(ala)12NHMe and Ac(ala)16NHMe. The AMBER95 force field of Cornell et al. [J. Am. Chem. Soc. 117, 5179 (1995)] is employed both with and without a simple implicit solvent. We use a master equation approach to analyze the dynamics of both systems, and relate the results to the potential energy landscapes using disconnectivity graphs. The low-lying regions of both energy landscapes are compared and found to be remarkably similar. α-helix formation occurs via an ensemble of pathways involving both the N- and C-termini. The global minima of the two systems are also located using the CHARMM22 force field of Mackerell et al. [J. Phys. Chem. B 102, 3586 (1998)], for comparison with AMBER95.
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影响因子:
2.9
作者:
Blondelle, SE;Forood, B;PerezPaya, E
通讯作者:
PerezPaya, E
DOI:
10.1073/pnas.240455797
发表时间:
2000
影响因子:
11.1
作者:
Vila,JA;Ripoll,DR;Scheraga,HA
通讯作者:
Scheraga,HA
影响因子:
2.9
作者:
Williams, S;Causgrove, TP;Dyer, RB
通讯作者:
Dyer, RB
影响因子:
5.6
作者:
Young,WS;Brooks3rd,CL
通讯作者:
Brooks3rd,CL
DOI:
10.1073/pnas.96.7.3682
发表时间:
1999-03-30
影响因子:
11.1
作者:
Rohl, CA;Fiori, W;Baldwin, RL
通讯作者:
Baldwin, RL