Power transformations improve interpolation of grids for molecular mechanics interaction energies.
Power transformations improve interpolation of grids for molecular mechanics interaction energies.
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功率转化改善了分子力学相互作用能量的网格插值。
DOI:
10.1002/jcc.25180
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发表时间:
2018-07-15
影响因子:
3
通讯作者:
Minh DDL
中科院分区:
文献类型:
--
作者:
Minh DDL
A common strategy for speeding up molecular docking calculations is to precompute nonbonded interaction energies between a receptor molecule and a set of three-dimensional grids. The grids are then interpolated to compute energies for ligand atoms in many different binding poses. Here I evaluate a smoothing strategy of taking a power transformation of grid point energies and inverse transformation of the result from trilinear interpolation. For molecular docking poses from 85 protein-ligand complexes, this smoothing procedure leads to significant accuracy improvements, including an approximately twofold reduction in the root mean square error at a grid spacing of 0.4 Å and retaining the ability to rank docking poses even at a grid spacing of 0.7 Å.
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