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• W4352977350 startingPage "933" @default.
• W4352977350 abstract "The human bacterial pathogen Helicobacter pylori causes a range of gastric diseases. The killing rate of Helicobacter pylori is declining year by year because of high antibiotics resistance. It is urgent to develop new target and novel anti- Helicobacter pylori drugs. As an energy pump for bacterial cells, SecA is essential for bacterial growth and drives bacterial protein transmembrane transport, moreover SecA is absent in mammals, all of which nominate SecA as an attractive antimicrobial target. Here, we provided a structure-based virtual screening method to screen the 3D-diversity natural-product-like screening library against SecA for novel anti- Helicobacter pylori inhibitors with novel scaffolds. In this study, homology modeling was used to construct the three-dimensional structure of Helicobacter pylori SecA. Two rounds of molecular docking were then used to find new small-molecule inhibitors of SecA, identifying six lead candidates that maintained key interactions with the binding pocket. After that, molecular dynamics simulations were used to explore more accurate ligand-receptor binding modes in states close to natural conditions. Encouragingly, all six compounds were relatively stable during the simulation. Apart from that the binding free energy calculation based on MM/PBSA demonstrated favorable results of < -13.642 kcal/mol. Finally, ADME-T analysis indicated that these compounds were also sufficiently druggable. All six compounds can be well combined with the crystal structure, which further facilitate the development of SecA inhibitors and lead compounds against Helicobacter pylori." @default.
• W4352977350 created "2023-03-23" @default.
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• W4352977350 date "2023-10-01" @default.
• W4352977350 modified "2023-10-06" @default.
• W4352977350 title "Structure-Based Virtual Screening of <i>Helicobacter pylori</i> SecA Inhibitors" @default.
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• W4352977350 doi "https://doi.org/10.1109/tnb.2023.3259946" @default.
• W4352977350 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37030876" @default.
• W4352977350 hasPublicationYear "2023" @default.
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