Folding and thermodynamic studies of Trp-cage based on polarized force field
Folding and thermodynamic studies of Trp-cage based on polarized force field
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基于极化力场的Trp-cage折叠及热力学研究
DOI:
10.1007/s00214-012-1168-0
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发表时间:
2012-03
影响因子:
1.7
通讯作者:
Zhang, Dawei
中科院分区:
文献类型:
--
作者:
Yip, Yew Mun;Ho, Chun Ying;Zhang, John Z. H.;Zhang, Dawei
Two replica exchange molecular dynamics (REMD) simulations were carried out to study the thermodynamics of a 20-residue Trp-cage folding based on a newly developed polarized protein-specific charge (PPC). Starting from a fully extended conformation, Trp-cage native conformation was successfully sampled using REMD based on a 3-step PPC update. Next, the obtained Trp-cage folded conformation was then used to calculate the PPC in which another REMD was performed to explore the thermodynamic stability of Trp-cage. The theoretical melting temperatureTmof ≈325 K was found to be in close agreement with experimental melting temperature,Tmof 315 K. This indicates that the PPC was correctly predicting the temperature dependence. The current study provides a direct proof of how electrostatic polarization affects protein folding.
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影响因子:
3.3
作者:
Zheng, Weihua;Gallicchio, Emilio;Deng, Nanjie;Andrec, Michael;Levy, Ronald M.
通讯作者:
Levy, Ronald M.
影响因子:
2.8
作者:
Hansmann, UHE
通讯作者:
Hansmann, UHE
DOI:
10.1021/jp045109y
发表时间:
2005-01
期刊:
The journal of physical chemistry. A
影响因子:
--
作者:
Y. Mei;Da W. Zhang;J. Z. Zhang
通讯作者:
Y. Mei;Da W. Zhang;J. Z. Zhang
影响因子:
6.8
作者:
J. McCammon;P. Wolynes
通讯作者:
J. McCammon;P. Wolynes
DOI:
10.1073/pnas.1330954100
发表时间:
2003-06-24
影响因子:
11.1
作者:
Pitera, JW;Swope, W
通讯作者:
Swope, W