Theoretical study of the geometric and electronic characterization of carbendazim-based drug (Nocodazole)

Scarcity in studies defining the precise three-dimensional structure of approved drugs has led to an abandoning of their use for other therapeutic indications. In this manuscript, we solely focus on studying computationally the anticancer drug “Nocodazole” as a model compound for anthelmintic drugs...

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Main Author: Muhammad Khattab
Format: Article
Language:English
Published: Elsevier 2020-06-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844020308999
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author Muhammad Khattab
author_facet Muhammad Khattab
author_sort Muhammad Khattab
collection DOAJ
description Scarcity in studies defining the precise three-dimensional structure of approved drugs has led to an abandoning of their use for other therapeutic indications. In this manuscript, we solely focus on studying computationally the anticancer drug “Nocodazole” as a model compound for anthelmintic drugs –due to structural similarity– proven to exert anticancer activity such as Mebendazole and Albendazole. Computations on Nocodazole structures deposited in the Protein Data Bank (PDB) revealed possible existence of at least 6 conformers of Nocodazole. By combining the reported experimental UV-Vis data with our calculations, two conformers were assigned as the predominant structures of Nocodazole. In addition, td-DFT calculations revealed that the conformational flexibility of Nocodazole results in significant changes in atomic and molecular charge densities. The results have ramifications in identification of possible conformers of carbendazim-based drugs for repurposing in oncology through giving deep insights in understanding the spatial and electronic changes upon drug binding to anticancer targets.
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spelling doaj.art-8c46c7d485b540c3956a448e696e86532022-12-21T19:26:55ZengElsevierHeliyon2405-84402020-06-0166e04055Theoretical study of the geometric and electronic characterization of carbendazim-based drug (Nocodazole)Muhammad Khattab0Department of Chemistry of Natural and Microbial Products, Division of Pharmaceutical and Drug Industries, National Research Centre, Cairo, 12622, Egypt; Department of Chemistry and Biotechnology, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Melbourne, Victoria, 3122, Australia; Corresponding author.Scarcity in studies defining the precise three-dimensional structure of approved drugs has led to an abandoning of their use for other therapeutic indications. In this manuscript, we solely focus on studying computationally the anticancer drug “Nocodazole” as a model compound for anthelmintic drugs –due to structural similarity– proven to exert anticancer activity such as Mebendazole and Albendazole. Computations on Nocodazole structures deposited in the Protein Data Bank (PDB) revealed possible existence of at least 6 conformers of Nocodazole. By combining the reported experimental UV-Vis data with our calculations, two conformers were assigned as the predominant structures of Nocodazole. In addition, td-DFT calculations revealed that the conformational flexibility of Nocodazole results in significant changes in atomic and molecular charge densities. The results have ramifications in identification of possible conformers of carbendazim-based drugs for repurposing in oncology through giving deep insights in understanding the spatial and electronic changes upon drug binding to anticancer targets.http://www.sciencedirect.com/science/article/pii/S2405844020308999Physical chemistryTheoretical chemistryPharmaceutical chemistryDrug repurposingDFT calculationBenzimidazole carbamates
spellingShingle Muhammad Khattab
Theoretical study of the geometric and electronic characterization of carbendazim-based drug (Nocodazole)
Heliyon
Physical chemistry
Theoretical chemistry
Pharmaceutical chemistry
Drug repurposing
DFT calculation
Benzimidazole carbamates
title Theoretical study of the geometric and electronic characterization of carbendazim-based drug (Nocodazole)
title_full Theoretical study of the geometric and electronic characterization of carbendazim-based drug (Nocodazole)
title_fullStr Theoretical study of the geometric and electronic characterization of carbendazim-based drug (Nocodazole)
title_full_unstemmed Theoretical study of the geometric and electronic characterization of carbendazim-based drug (Nocodazole)
title_short Theoretical study of the geometric and electronic characterization of carbendazim-based drug (Nocodazole)
title_sort theoretical study of the geometric and electronic characterization of carbendazim based drug nocodazole
topic Physical chemistry
Theoretical chemistry
Pharmaceutical chemistry
Drug repurposing
DFT calculation
Benzimidazole carbamates
url http://www.sciencedirect.com/science/article/pii/S2405844020308999
work_keys_str_mv AT muhammadkhattab theoreticalstudyofthegeometricandelectroniccharacterizationofcarbendazimbaseddrugnocodazole