Binding affinity estimation from restrained umbrella sampling simulations.
Binding affinity estimation from restrained umbrella sampling simulations.
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DOI:
10.1038/s43588-022-00389-9
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发表时间:
2023-01
期刊:
影响因子:
--
通讯作者:
Moradi, Mahmoud
中科院分区:
文献类型:
--
作者:
Kumar, Vivek Govind;Polasa, Adithya;Agrawal, Shilpi;Kumar, Thallapuranam Krishnaswamy Suresh;Moradi, Mahmoud
The protein–ligand binding affinity quantifies the binding strength between a protein and its ligand. Computer modeling and simulations can be used to estimate the binding affinity or binding free energy using data- or physics-driven methods or a combination thereof. Here we discuss a purely physics-based sampling approach based on biased molecular dynamics simulations. Our proposed method generalizes and simplifies previously suggested stratification strategies that use umbrella sampling or other enhanced sampling simulations with additional collective-variable-based restraints. The approach presented here uses a flexible scheme that can be easily tailored for any system of interest. We estimate the binding affinity of human fibroblast growth factor 1 to heparin hexasaccharide based on the available crystal structure of the complex as the initial model and four different variations of the proposed method to compare against the experimentally determined binding affinity obtained from isothermal titration calorimetry experiments. This work provides a physics-based theoretical framework for accurate protein–ligand binding affinity estimation based on molecular dynamics simulations, enhanced sampling, non-parametric reweighting and the orientation quaternion formalism.
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影响因子:
14.8
作者:
Fu, Haohao;Chen, Haochuan;Chipot, Christophe
通讯作者:
Chipot, Christophe
影响因子:
2.9
作者:
Bernett, MJ;Somasundaram, T;Blaber, M
通讯作者:
Blaber, M
DOI:
10.1021/jp807701h
发表时间:
2009-02-26
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
Deng Y;Roux B
通讯作者:
Roux B
影响因子:
3.3
作者:
Boresch, S;Tettinger, F;Karplus, M
通讯作者:
Karplus, M
影响因子:
5.5
作者:
de Lacam, Emma Goulard Coderc;Blazhynska, Marharyta;Chipot, Christophe
通讯作者:
Chipot, Christophe