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Discovery of Histone Deacetylase Inhibitor Using Molecular Modeling and Free Energy Calculations

[Image: see text] The histone acetylation–deacetylation at lysine regulates the functions of many cellular proteins. An increased expression of HDAC6 can cause an increased amount of deacetylated histones, which leads to an inhibition of gene expression and has been associated with cancer cell proli...

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Autores principales: Mishra, Abha, Singh, Amit
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9178742/
https://www.ncbi.nlm.nih.gov/pubmed/35694501
http://dx.doi.org/10.1021/acsomega.2c01572
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author Mishra, Abha
Singh, Amit
author_facet Mishra, Abha
Singh, Amit
author_sort Mishra, Abha
collection PubMed
description [Image: see text] The histone acetylation–deacetylation at lysine regulates the functions of many cellular proteins. An increased expression of HDAC6 can cause an increased amount of deacetylated histones, which leads to an inhibition of gene expression and has been associated with cancer cell proliferation. The present study screened the ZINC database to find novel HDAC6 inhibitors using virtual high-throughput screening techniques. The docking score, free energy, and binding pattern of the complexes were used to select a best ligand for further study. Molecular dynamic simulations, binding interactions, and the stability of docked conformations were investigated. Several parameters that determine protein–ligand interactions, such as root-mean-square deviation (RMSD), root-mean-square fluctuation (RMSF), radius of gyration (Rg), and binding pattern, were observed. Hydrogen bonds were observed at His 573 and Gly 582 after a 150 ns simulation with identified compound ZINC000002845205, and they were similar to known inhibitor Panobinostat. The molecular mechanics with generalised Born and surface area solvation (MM/GBSA) free energy was comparable to known inhibitor Panobinostat. ZINC000002845205 qualifies drug-likeness according to Lipinski’s rule-of-five, rule-of-three, and the World Drug Index (WDI)-like rule, but there is one violation in the lead-like rule.
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spelling pubmed-91787422022-06-10 Discovery of Histone Deacetylase Inhibitor Using Molecular Modeling and Free Energy Calculations Mishra, Abha Singh, Amit ACS Omega [Image: see text] The histone acetylation–deacetylation at lysine regulates the functions of many cellular proteins. An increased expression of HDAC6 can cause an increased amount of deacetylated histones, which leads to an inhibition of gene expression and has been associated with cancer cell proliferation. The present study screened the ZINC database to find novel HDAC6 inhibitors using virtual high-throughput screening techniques. The docking score, free energy, and binding pattern of the complexes were used to select a best ligand for further study. Molecular dynamic simulations, binding interactions, and the stability of docked conformations were investigated. Several parameters that determine protein–ligand interactions, such as root-mean-square deviation (RMSD), root-mean-square fluctuation (RMSF), radius of gyration (Rg), and binding pattern, were observed. Hydrogen bonds were observed at His 573 and Gly 582 after a 150 ns simulation with identified compound ZINC000002845205, and they were similar to known inhibitor Panobinostat. The molecular mechanics with generalised Born and surface area solvation (MM/GBSA) free energy was comparable to known inhibitor Panobinostat. ZINC000002845205 qualifies drug-likeness according to Lipinski’s rule-of-five, rule-of-three, and the World Drug Index (WDI)-like rule, but there is one violation in the lead-like rule. American Chemical Society 2022-05-24 /pmc/articles/PMC9178742/ /pubmed/35694501 http://dx.doi.org/10.1021/acsomega.2c01572 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Mishra, Abha
Singh, Amit
Discovery of Histone Deacetylase Inhibitor Using Molecular Modeling and Free Energy Calculations
title Discovery of Histone Deacetylase Inhibitor Using Molecular Modeling and Free Energy Calculations
title_full Discovery of Histone Deacetylase Inhibitor Using Molecular Modeling and Free Energy Calculations
title_fullStr Discovery of Histone Deacetylase Inhibitor Using Molecular Modeling and Free Energy Calculations
title_full_unstemmed Discovery of Histone Deacetylase Inhibitor Using Molecular Modeling and Free Energy Calculations
title_short Discovery of Histone Deacetylase Inhibitor Using Molecular Modeling and Free Energy Calculations
title_sort discovery of histone deacetylase inhibitor using molecular modeling and free energy calculations
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9178742/
https://www.ncbi.nlm.nih.gov/pubmed/35694501
http://dx.doi.org/10.1021/acsomega.2c01572
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