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Rasul HO, Sabir DK, Aziz BK, Guillermo Salgado M, Mendoza-Huizar LH, Belhassan A, Candia LG, Villada WC, Thomas NV, Ghafour DD. Identification of natural diterpenes isolated from Azorella species targeting dispersin B using in silico approaches. J Mol Model 2023; 29:182. [PMID: 37209272 DOI: 10.1007/s00894-023-05592-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/15/2023] [Indexed: 05/22/2023]
Abstract
CONTEXT A bacterial biofilm is a cluster of bacterial cells embedded in a self-produced matrix of extracellular polymeric substances such as DNA, proteins, and polysaccharides. Several diseases have been reported to cause by bacterial biofilms, and difficulties in treating these infections are of concern. This work aimed to identify the inhibitor with the highest binding affinity for the receptor protein by screening various inhibitors obtained from Azorella species for a potential target to inhibit dispersin B. This work shows that azorellolide has the highest binding affinity (- 8.2 kcal/mol) among the compounds tested, followed by dyhydroazorellolide, mulinone A, and 7-acetoxy-mulin-9,12-diene which all had a binding affinity of - 8.0 kcal/mol. To the best of our knowledge, this is the first study to evaluate and contrast several diterpene compounds as antibacterial biofilm chemicals. METHODS Here, molecular modelling techniques tested 49 diterpene compounds of Azorella and six FDA-approved antibiotics medicines for antibiofilm activity. Since protein-like interactions are crucial in drug discovery, AutoDock Vina was initially employed to carry out structure-based virtual screening. The drug-likeness and ADMET properties of the chosen compounds were examined to assess the antibiofilm activity further. Lipinski's rule of five was then applied to determine the antibiofilm activity. Then, molecular electrostatic potential was used to determine the relative polarity of a molecule using the Gaussian 09 package and GaussView 5.08. Following three replica molecular dynamic simulations (using the Schrodinger program, Desmond 2019-4 package) that each lasted 100 ns on the promising candidates, binding free energy was estimated using MM-GBSA. Structural visualisation was used to test the binding affinity of each compound to the crystal structure of dispersin B protein (PDB: 1YHT), a well-known antibiofilm compound.
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Affiliation(s)
- Hezha O Rasul
- Department of Pharmaceutical Chemistry, College of Science, Charmo University, Peshawa Street, Chamchamal, Sulaymaniyah, 46023, Iraq.
| | - Dana Khdr Sabir
- Department of Medical Laboratory Sciences, College of Science, Charmo University, 46023 Chamchamal, Sulaymaniyah, Iraq
| | - Bakhtyar K Aziz
- Department of Nanoscience and Applied Chemistry, College of Science, Charmo University, Peshawa Street, Chamchamal, Sulaymaniyah, 46023, Iraq
| | - M Guillermo Salgado
- Facultad de Ciencias Químicas, Investigador Extramural, Universidad de Concepcion, Concepcion, Chile
| | - L H Mendoza-Huizar
- Autonomous University of Hidalgo State, Academic Area of Chemistry, Mineral de la Reforma, Hidalgo, Mexico
| | - Assia Belhassan
- Molecular Chemistry and Natural Substances Laboratory, Faculty of Science, Moulay Ismail University of Meknes, Meknes, Morocco
| | - Lorena Gerli Candia
- Departamento de Química Ambiental, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Concepción, Chile
| | - Wilson Cardona Villada
- Facultad de Ciencias Exactas, Departamento de Quimica, Universidad Andres Bello, Concepcion, Chile
| | - Noel Vinay Thomas
- Department of BioMedical Science, College of Science, Komar University of Science and Technology, Sulaymaniyah, 46001, Iraq
| | - Dlzar D Ghafour
- Department of Medical Laboratory Science, College of Science, Komar University of Science and Technology, Sulaymaniyah, 46001, Iraq
- Department of Chemistry, College of Science, University of Sulaimani, Sulaymaniyah, 46001, Iraq
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