Parameterization of aromatic azido groups: application as photoaffinity probes in molecular dynamics studies.
Parameterization of aromatic azido groups: application as photoaffinity probes in molecular dynamics studies.
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DOI:
10.1007/s00894-009-0488-z
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发表时间:
2009-11
影响因子:
2.2
通讯作者:
Petukhov, Pavel A.
中科院分区:
文献类型:
--
作者:
Pieffet, Gilles;Petukhov, Pavel A.
关键词:
The accuracy of molecular dynamics (MD) simulations is limited by the availability of parameters for the molecular system of interest. In most force fields parameters of common chemical groups are already present. With the development of novel small organic molecules as probes to study biological system more chemical groups require parameterization. An azide group is often used in studies of biological systems yet computational studies are impeded by the lack of parameters. In this paper we present a set of molecular mechanics (MM) parameters for aromatic and aliphatic azido groups and their application in MD simulations of a photoaffinity probe currently used in our laboratory for mapping the binding modes available in the active site of histone deacetylases. The parameters were developed for the Generalized Amber Force Field (GAFF) using density functional theory calculations (DFT) at B3LYP 6-311G(d) level. The parameters were validated by geometry optimization and MD simulations.
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影响因子:
4.4
作者:
JORGENSEN, WL;CHANDRASEKHAR, J;KLEIN, ML
通讯作者:
KLEIN, ML
影响因子:
15
作者:
Cross, JB;Duca, JS;Madison, VS
通讯作者:
Madison, VS
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6.3
作者:
BERENDSEN, HJC;VANDERSPOEL, D;VANDRUNEN, R
通讯作者:
VANDRUNEN, R
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3
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Wang, JM;Wolf, RM;Case, DA
通讯作者:
Case, DA
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3.8
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ANDERSON, DW;RANKIN, DWH;ROBERTSON, A
通讯作者:
ROBERTSON, A