In Silico Screening of Natural Flavonoids against 3-Chymotrypsin-like Protease of SARS-CoV-2 Using Machine Learning and Molecular Modeling.
In Silico Screening of Natural Flavonoids against 3-Chymotrypsin-like Protease of SARS-CoV-2 Using Machine Learning and Molecular Modeling.
复制标题
DOI:
10.3390/molecules28248034
复制
发表时间:
2023-12-10
期刊:
影响因子:
--
通讯作者:
Wang J
中科院分区:
文献类型:
--
作者:
Cai L;Han F;Ji B;He X;Wang L;Niu T;Zhai J;Wang J
The “Long-COVID syndrome” has posed significant challenges due to a lack of validated therapeutic options. We developed a novel multi-step virtual screening strategy to reliably identify inhibitors against 3-chymotrypsin-like protease of SARS-CoV-2 from abundant flavonoids, which represents a promising source of antiviral and immune-boosting nutrients. We identified 57 interacting residues as contributors to the protein-ligand binding pocket. Their energy interaction profiles constituted the input features for Machine Learning (ML) models. The consensus of 25 classifiers trained using various ML algorithms attained 93.9% accuracy and a 6.4% false-positive-rate. The consensus of 10 regression models for binding energy prediction also achieved a low root-mean-square error of 1.18 kcal/mol. We screened out 120 flavonoid hits first and retained 50 drug-like hits after predefined ADMET filtering to ensure bioavailability and safety profiles. Furthermore, molecular dynamics simulations prioritized nine bioactive flavonoids as promising anti-SARS-CoV-2 agents exhibiting both high structural stability (root-mean-square deviation < 5 Å for 218 ns) and low MM/PBSA binding free energy (<−6 kcal/mol). Among them, KB-2 (PubChem-CID, 14630497) and 9-O-Methylglyceofuran (PubChem-CID, 44257401) displayed excellent binding affinity and desirable pharmacokinetic capabilities. These compounds have great potential to serve as oral nutraceuticals with therapeutic and prophylactic properties as care strategies for patients with long-COVID syndrome.
登录
查看更多内容
影响因子:
5.6
作者:
Guedes IA;Pereira FSS;Dardenne LE
通讯作者:
Dardenne LE
DOI:
10.1038/s41579-022-00846-2
发表时间:
2023-03
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
通讯作者:
--
影响因子:
56.9
作者:
Anand, K;Ziebuhr, J;Hilgenfeld, R
通讯作者:
Hilgenfeld, R
影响因子:
4.4
作者:
JORGENSEN, WL;CHANDRASEKHAR, J;KLEIN, ML
通讯作者:
KLEIN, ML
影响因子:
7.3
作者:
Halgren, TA;Murphy, RB;Banks, JL
通讯作者:
Banks, JL