1
|
Benselama W, Benchouk W. In silico design based on quantum chemical, molecular docking studies and ADMET predictions of ciprofloxacin derivatives as novel potential antibacterial and antimycrobacterium agents. J Biomol Struct Dyn 2024; 42:7650-7666. [PMID: 37551116 DOI: 10.1080/07391102.2023.2240906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 07/20/2023] [Indexed: 08/09/2023]
Abstract
Drug designing and development is an important area of research for pharmaceutical companies and chemical scientists. In this paper, we report the prediction of new ciprofloxacin derivatives by quantum chemical, molecular docking studies and pharmacokinetic properties. Theoretical studies were performed by geometry optimization computation using B3LYP level at 6-311 G (d,p) basis set. The absorption, distribution, metabolism, excretion and toxicity (ADMET) parameters were predicted and the result show that all compounds have a great ADMET profile. To study the antibacterial, anti-Mycobacterium tuberculosis activities, ciprofloxacin and its derivatives were interacted with the proteins: Thymidylate Kinase (PDB: 4QGG), Biotin carboxylase (PDB: 3JZF) and β-lactamase BlaC (PDB: 3N7W). The results of the docking studies indicate that one pharmacophore designed presents a great inhibition behavior against gram-positive organism (4QGG) and significant interactions observed between the compound and ARG48, GLN101, ARG105 and GLU37 residues of 4QGG. Also, another derivative designed present the best inhibition against gram-negative organism (3JZF) several interactions were noticed between the compound and GLY165, ILE287, LEU278, HIS236, HIS209, MET169 and LYS159 residues of (3JZF). As well as, one designed candidate is good inhibitors for β-lactamase (3N7W) multiple no bonded interactions were observed between the compound and SER84, ILE117, ASN186, LYS87, ARG187, ASN186 and THR251 residues of(3N7W). Molecular dynamics (MD) simulation study was also performed for 100 ns to confirm the stability behaviour of the main protein and inhibitor complexes. The MD simulation study validated the stability of three compounds in the protein binding pocket as potent binders. Natural bonding orbital analysis, reactivity indices and molecular electrostatic potential were carried out. The research finding of this study can be helpful to design a new potent antibacterial, antimycrobacterium candidate's drugs that will serve as the basis for future in vitro and in vivo research.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Wafa Benselama
- Laboratory of Applied Thermodynamics and Molecular Modeling, Department of Chemistry, Faculty of Science, University of Tlemcen, Tlemcen, Algeria
| | - Wafaa Benchouk
- Laboratory of Applied Thermodynamics and Molecular Modeling, Department of Chemistry, Faculty of Science, University of Tlemcen, Tlemcen, Algeria
| |
Collapse
|
2
|
Carrascal-Hernandez DC, Mendez-Lopez M, Insuasty D, García-Freites S, Sanjuan M, Márquez E. Molecular Recognition between Carbon Dioxide and Biodegradable Hydrogel Models: A Density Functional Theory (DFT) Investigation. Gels 2024; 10:386. [PMID: 38920932 PMCID: PMC11202771 DOI: 10.3390/gels10060386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 05/25/2024] [Accepted: 05/28/2024] [Indexed: 06/27/2024] Open
Abstract
In this research, we explore the potential of employing density functional theory (DFT) for the design of biodegradable hydrogels aimed at capturing carbon dioxide (CO2) and mitigating greenhouse gas emissions. We employed biodegradable hydrogel models, including polyethylene glycol, polyvinylpyrrolidone, chitosan, and poly-2-hydroxymethacrylate. The complexation process between the hydrogel and CO2 was thoroughly investigated at the ωB97X-D/6-311G(2d,p) theoretical level. Our findings reveal a strong affinity between the hydrogel models and CO2, with binding energies ranging from -4.5 to -6.5 kcal/mol, indicative of physisorption processes. The absorption order observed was as follows: chitosan > PVP > HEAC > PEG. Additionally, thermodynamic parameters substantiated this sequence and even suggested that these complexes remain stable up to 160 °C. Consequently, these polymers present a promising avenue for crafting novel materials for CO2 capture applications. Nonetheless, further research is warranted to optimize the design of these materials and assess their performance across various environmental conditions.
Collapse
Affiliation(s)
- Domingo Cesar Carrascal-Hernandez
- Departamento de Química y Biología, Facultad de Ciencias Básicas, Universidad del Norte, Barranquilla 080020, Colombia; (D.C.C.-H.); (M.M.-L.); (D.I.)
| | - Maximiliano Mendez-Lopez
- Departamento de Química y Biología, Facultad de Ciencias Básicas, Universidad del Norte, Barranquilla 080020, Colombia; (D.C.C.-H.); (M.M.-L.); (D.I.)
| | - Daniel Insuasty
- Departamento de Química y Biología, Facultad de Ciencias Básicas, Universidad del Norte, Barranquilla 080020, Colombia; (D.C.C.-H.); (M.M.-L.); (D.I.)
| | - Samira García-Freites
- Centro de Investigación e Innovación en Energía y Gas—CIIEG, Promigas S.A. E.S.P., Barranquilla 11001, Colombia; (S.G.-F.); (M.S.)
| | - Marco Sanjuan
- Centro de Investigación e Innovación en Energía y Gas—CIIEG, Promigas S.A. E.S.P., Barranquilla 11001, Colombia; (S.G.-F.); (M.S.)
| | - Edgar Márquez
- Departamento de Química y Biología, Facultad de Ciencias Básicas, Universidad del Norte, Barranquilla 080020, Colombia; (D.C.C.-H.); (M.M.-L.); (D.I.)
| |
Collapse
|
3
|
Maaghloud FE, Moukhfi F, Abdou A, Chadli N, Aboulmouhajir A, Elmakssoudi H, El Hakmaoui A, Jamal Eddine J, Akssira M, Dakir M. A simple synthesis of α-Costic acid analogue with antibacterial potential, DFT and molecular docking. Nat Prod Res 2024; 38:1381-1391. [PMID: 36382772 DOI: 10.1080/14786419.2022.2144851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/26/2022] [Accepted: 11/03/2022] [Indexed: 11/18/2022]
Abstract
Natural products extracted from plants has been recognized as the most efficient starting materials to synthesize new derivatives of medicinal interest. Our research focuses on the isolation and characterization of sesquiterpene derivatives from Dittrichia Viscosa (L), as well as their hemisynthesis. To that end, a phytochemical study of Dittrichia viscosa leaves was conducted in order to obtain a sesquiterpenoid, α -Costic acid, which will be further transformed to γ -Costic acid with high yield using simple processes. Optimized molecular geometry and vibrational frequencies of both products were computed using the density functional theory. In addition, the antibacterial activity of isolated and hemisynthesized products were analyzed in vitro against Escherichia coli resistant to β-lactamase 616, Pseudomonas aeruginosa, and Staphylococcus aureus. The obtained compounds were investigated by in silico biological method to evaluate their potential inhibitory activity against same strains using FtsA, LasR proteins and DNA polymerase III enzyme.
Collapse
Affiliation(s)
- F E Maaghloud
- Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Casablanca, Morocco
| | - F Moukhfi
- Laboratory of Biodiversity and Immunology, Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Casablanca, Morocco
| | - A Abdou
- Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Casablanca, Morocco
| | - N Chadli
- Laboratory of Biodiversity and Immunology, Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Casablanca, Morocco
| | - A Aboulmouhajir
- Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Casablanca, Morocco
| | - H Elmakssoudi
- Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Casablanca, Morocco
| | - A El Hakmaoui
- Laboratory of Physical Chemistry & Bioorganic Chemistry, Faculty of Sciences and Technologies Mohammedia, Hassan II University of Casablanca, Casablanca, Morocco
| | - J Jamal Eddine
- Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Casablanca, Morocco
| | - M Akssira
- Laboratory of Physical Chemistry & Bioorganic Chemistry, Faculty of Sciences and Technologies Mohammedia, Hassan II University of Casablanca, Casablanca, Morocco
| | - M Dakir
- Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Casablanca, Morocco
| |
Collapse
|
4
|
Pal I, Majumdar S, Lepcha G, Ahmed KT, Yatirajula SK, Bhattacharya S, Chakravarti R, Bhattacharya B, Biswas SR, Dey B. Exploration of Variable Solvent Directed Self-Healable Supramolecular M(II)-Metallogels (M = Co, Ni, Zn) of Azelaic Acid: Investigating Temperature-Dependent Ion Conductivity and Antibacterial Efficiency. ACS APPLIED BIO MATERIALS 2023; 6:5442-5457. [PMID: 37997919 DOI: 10.1021/acsabm.3c00675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
Molecular self-assembly assisted self-healing supramolecular metallogels of azelaic acid with cobalt(II)-, nickel(II)-, and zinc(II)-based metal acetate salts were successfully fabricated. Individually, N,N'-dimethylformamide and dimethyl sulfoxide were immobilized within these distinctly synthesized soft-scaffolds of metallogels to attain their semisolid viscoelastic nature. Rheological experiments such as amplitude sweep, frequency sweep, and thixotropic measurements were executed for these metallogels to ratify their gel features. The different extents of supramolecular interactions operating within these solvent-directed metallogels were clearly reflected in terms of their distinct morphological patterns as investigated through field emission scanning electron microscopy. Comparative infrared (IR) spectral properties of metallogels along with individual metal salts and azelaic acid were analyzed. These experimental data clearly depict the significant shifting of Fourier transform (FT)-IR peaks of xerogel samples of different metallogels from the gel-forming precursors. The networks present within the soft-scaffold are evidently illustrated by the electrospray ionization-mass experimental data. The temperature-dependent ionic conductivity studies with these solvent-directed versatile metallogel systems were investigated through impedance spectroscopy. The temperature-dependent impedance spectroscopic studies clearly demonstrate that the ion-transportation within the gel matrix depends not only on the types of cations but also on the dielectric properties of the immobilized solvents. The antipathogenic effect of these metallogel systems has also been explored by testing their effectiveness against human pathogenic Gram-negative bacteria Klebsiella pneumoniae (MTCC 109) and Vibrio parahemolyticus, and Gram-positive bacteria like Bacillus cereus (MTCC 1272). These gel soft-scaffolds show no significant cytotoxicity against both the human neuroblastoma cell line-SH-SY5Y and the human embryonic kidney cell line-HEK 293.
Collapse
Affiliation(s)
- Indrajit Pal
- Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India
| | - Santanu Majumdar
- Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India
| | - Gerald Lepcha
- Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India
| | - Kazi Tawsif Ahmed
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Kolkata 700054, India
- Department of Botany, Visva-Bharati University, Santiniketan 731235, India
| | - Suresh Kumar Yatirajula
- Department of Chemical Engineering, Indian Institute of Technology (ISM) Dhanbad 826004, India
| | | | - Rudra Chakravarti
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Kolkata 700054, India
| | - Bireswar Bhattacharya
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Kolkata 700054, India
| | | | - Biswajit Dey
- Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India
| |
Collapse
|
5
|
N MP, C GPD, R M. Exploring natural products library to identify potential inhibitors targeting isoniazid-resistant tuberculosis. J Biomol Struct Dyn 2023:1-15. [PMID: 37993985 DOI: 10.1080/07391102.2023.2283159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/06/2023] [Indexed: 11/24/2023]
Abstract
Mycobacterium tuberculosis (MTB) causing tuberculosis (TB) infection is a leading source of illness and death in developing nations, and the emergence of drug-resistant TB remains a significant global threat and a challenge in treating the disease. Mutations in the inhA and katG genes are connected to the principal molecular mechanism of isoniazid (INH) resistance, and continuous treatment of INH for more than a decade led to the evolution of INH resistant-TB (inhR-TB). Structure-based drug discovery approaches on traditional natural compounds are the contemporary source to identify significant lead molecules. This work focuses on discovering effective small compounds from natural compound libraries and applying pharmacophore-based virtual screening to filter out the molecules. The best-identified hit complexes were used for molecular dynamics simulations (MDS) to observe their stability and compactness. A three-dimensional e-pharmacophore hypothesis and screening generated 62 hits based on phase fitness scores from the pharmacophore-based virtual screening. Molecular docking experiments in Maestro's GLIDE module indicated that ZINC000002383126 and ASN22022 may be potential inhibitors of inhA and katG (native, inhA mutants S94A, Y158A, Y158F and Y158S and D137S, Y229F, S315T, W321F, and R418L mutants of katG). In addition, MDS analysis indicated that the native and mutant docked complexes of inhA and katG had good stability and remained compact in the binding pocket of the targets. In vitro studies can further validate the compounds that can act as INH competitive inhibitors.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Madhana Priya N
- Department of Biotechnology, Faculty of Biomedical Sciences & Technology, Sri Ramachandra Institute of Higher Education and Research (DU), Chennai, India
| | - George Priya Doss C
- Laboratory of Integrative Genomics, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Magesh R
- Department of Biotechnology, Faculty of Biomedical Sciences & Technology, Sri Ramachandra Institute of Higher Education and Research (DU), Chennai, India
| |
Collapse
|
6
|
Piña MDLN, Sahu AK, Frontera A, Biswal HS, Bauzá A. Tetrel bonds involving a CF 3 group participate in protein-drug recognition: a combined crystallographic and computational study. Phys Chem Chem Phys 2023; 25:12409-12419. [PMID: 37093130 DOI: 10.1039/d3cp00839h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
In this study, the ability of CF3 groups to bind to the electron-rich side chains and backbone groups of proteins has been investigated by combining a Protein Data Bank (PDB) survey and ab initio quantum mechanics calculations. More precisely, an inspection of the PDB involving organic ligands containing a CF3 group and electron-rich atoms (A = N, O and S) in the vicinity revealed 419 X-ray structures exhibiting CF3⋯A tetrel bonds (TtBs). In a posterior stage, those hits that exhibited the most relevant features in terms of directionality and intermolecular distance were selected for theoretical calculations at the RI-MP2/def2-TZVPD level of theory. Also, Hammett's regression plots of several TtB complexes involving meta- and para-substituted benzene derivatives were computed to shed light on the substituent effects. Moreover, the TtBs were characterized through several state-of-the-art computational techniques, such as the Quantum Theory of Atoms in Molecules (QTAIM) and Noncovalent Interactions plot (NCIplot) methodologies. We believe that the results gathered from our study will be useful for rational drug design and biological communities as well as for further expanding the role of this interaction to biomedical applications.
Collapse
Affiliation(s)
- María de Las Nieves Piña
- Department of Chemistry, Universitat de les Illes Balears, Crts de Valldemossa km 7.6, 07122 Palma de Mallorca, Baleares, Spain.
| | - Akshay Kumar Sahu
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), PO-Bhimpur-Padanpur, Via-Jatni, Khurda, 752050, Bhubaneswar, India.
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crts de Valldemossa km 7.6, 07122 Palma de Mallorca, Baleares, Spain.
| | - Himansu S Biswal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), PO-Bhimpur-Padanpur, Via-Jatni, Khurda, 752050, Bhubaneswar, India.
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Antonio Bauzá
- Department of Chemistry, Universitat de les Illes Balears, Crts de Valldemossa km 7.6, 07122 Palma de Mallorca, Baleares, Spain.
| |
Collapse
|
7
|
Khan J, Sakib SA, Mahmud S, Khan Z, Islam MN, Sakib MA, Emran TB, Simal-Gandara J. Identification of potential phytochemicals from Citrus Limon against main protease of SARS-CoV-2: molecular docking, molecular dynamic simulations and quantum computations. J Biomol Struct Dyn 2022; 40:10741-10752. [PMID: 34278965 DOI: 10.1080/07391102.2021.1947893] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The outbreak of coronavirus disease (COVID-19) caused by a novel RNA virus emerged at the end of 2019. Most of the patient's symptoms are mild to moderate, and influenza, acute respiratory distress syndrome (ARDS) and multi-organ failure are common. The disease is mild to moderate in most patients and is reported in many cases such as pneumonia, ARDS and multi-organ dysfunction. This study's objective is to evaluate 25 natural compounds from Citrus limon (CL) used by comprehensive molecular docking, density functional theory (DFT) and molecular dynamics analysis against SARS-CoV-2 main protease (Mpro). Among all the experimental compounds, diosmetin has shown the best docking values against the Mpro of SARS-CoV-2 compared to the standard antiviral drug. In DFT calculations, the order associated with biochemical reactivity is as follows: eriodictoyl > quercetin > spinacetin > diosmetin > luteolin > apigenin, whereas the regions of oxygen and hydrogen atoms from the selected isolated compounds are appropriate for electrophilic and nucleophilic attacks, respectively. Also, HOMO-LUMO and global descriptors values indicated a promising result of these compounds. Moreover, a molecular dynamics simulation study revealed the stable conformation and binding pattern in a stimulating environment of natural compounds CL. Considering molecular docking, simulation, and DFT analysis of the selected compounds, notably eriodictoyl, quercetin, and diosmetin showed good potential against SARS-CoV-2 Mpro. Our in silico study revealed promising antiviral activity, which may be considered a potential key factor or a therapeutic target for COVID-19.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Jishan Khan
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh
| | - Shahenur Alam Sakib
- Department of Theoretical and Computational Chemistry, University of Dhaka, Dhaka
| | - Shafi Mahmud
- Microbiology Laboratory, Bioinformatics Division, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, Bangladesh
| | - Zidan Khan
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh
| | - Mohammad Nazmul Islam
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh
| | - Mahfuz Ahmed Sakib
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong, Bangladesh
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo-Ourense Campus, Ourense, Spain
| |
Collapse
|
8
|
Wang D, Deng H, Zhang T, Tian F, Wei D. Open access databases available for the pesticide lead discovery. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 188:105267. [PMID: 36464372 DOI: 10.1016/j.pestbp.2022.105267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 10/04/2022] [Accepted: 10/11/2022] [Indexed: 06/17/2023]
Abstract
Pesticide research is a multi-disciplinary collaborative study, and big data analysis based on integrating information from databases benefits decision-making in pesticide research. In the last 40 years, dozens of pesticide-related databases have been built up to describe their biological activities, toxicity, modes of action, and environmental risks, etc. However, these data are scattered and overlapping in different databases in multiple inconsistent formats, which is not convenient for information analysis and comparison. In this study, the content of 26 open access databases related to pesticide research was illustrated according to the information provided for the ligand-based drug design (LBDD) and receptor-based (or structure-based drug design, SBDD), and was summarized into three categories:1) the correspondence between the chemical structures and functional properties (biological activity, resistance, toxicity, environmental adaptation); 2) action mode study (target identification, target structures, and biological pathways); 3) computational servers for pesticide design. To our knowledge, this is the first review about the open access databases for pesticide research. The data classification could facilitate the information accessibility for pesticide research, and speed up the decision-making process in pesticide discovery.
Collapse
Affiliation(s)
- Daozhong Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan 430070, China; College of Veterinary Medicine, National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health,Huazhong Agricultural University, Shenzhen 518000, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China
| | - Hua Deng
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Tao Zhang
- College of Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Fang Tian
- College of Informatics, Huazhong Agricultural University, Wuhan 430070, China.
| | - Dengguo Wei
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan 430070, China; College of Veterinary Medicine, National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health,Huazhong Agricultural University, Shenzhen 518000, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China.
| |
Collapse
|
9
|
Abdellattif MH, Elkamhawy A, Hagar M, Hadda TB, Shehab WS, Mansy W, Belal A, Arief MMH, Hussien MA. Novel saccharin analogs as promising antibacterial and anticancer agents: synthesis, DFT, POM analysis, molecular docking, molecular dynamic simulations, and cell-based assay. Front Pharmacol 2022; 13:958379. [PMID: 36267293 PMCID: PMC9577234 DOI: 10.3389/fphar.2022.958379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/04/2022] [Indexed: 11/27/2022] Open
Abstract
Saccharine is a pharmacologically significant active scaffold for various biological activities, including antibacterial and anticancer activities. Herein, saccharinyl hydrazide (1) was synthesized and converted into 2-[(2Z)-2-(1,1-dioxo-1,2-dihydro-3H-1λ6,2- benzothiazole-3-ylidene) hydrazinyl] acetohydrazide (5), which was employed as a key precursor for synthesizing a novel series of small molecules bearing different moieties of monosaccharides, aldehydes, and anhydrides. Potent biological activities were found against Staphylococcus and Escherichia coli, and the results indicated that compounds 6c and 10a were the most active analogs with an inhibition zone diameter of 30–35 mm. In cell-based anticancer assay over Ovcar-3 and M-14 cell lines, compound 10a was the most potent analog with IC50 values of 7.64 ± 0.01 and 8.66 ± 0.01 µM, respectively. The Petra Orisis Molinspiration (POM) theoretical method was used to calculate the drug score of tested compounds and compare them with their experimental screening data. Theoretical DFT calculations were carried out in a gas phase in a set of B3LYP 6-311G (d,p). Molecular docking studies utilizing the MOE indicated the best binding mode with the highest energy interaction within the binding sites. The molecular docking for Ovcar-3 was carried out on the ovarian cancer protein (3W2S), while the molecular docking for M-14 melanoma was carried out on the melanoma cancer protein (2OPZ). The MD performed about 2ns simulations to validate selected compounds’ theoretical studies.
Collapse
Affiliation(s)
- Magda H. Abdellattif
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
- *Correspondence: Magda H. Abdellattif, ; M. M. H. Arief,
| | - Ahmed Elkamhawy
- College of Pharmacy, Dongguk University-Seoul, Goyang, South Korea
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mohamed Hagar
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Taibi Ben Hadda
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
- Laboratory of Applied Chemistry and Environment, Faculty of Sciences, Mohammed Premier University, Oujda, Morocco
| | - Wesam S. Shehab
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Wael Mansy
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Amany Belal
- Department of Pharmaceutical Chemistry, College of Pharmacy Taif University, Taif, Saudi Arabia
| | - M. M. H. Arief
- Department of Chemistry, Faculty of Science, Benha University, Benha, Egypt
- *Correspondence: Magda H. Abdellattif, ; M. M. H. Arief,
| | - Mostafa A. Hussien
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Chemistry, Faculty of Science, Port Said University, Port Said, Egypt
| |
Collapse
|
10
|
Computational modeling of potential milciclib derivatives inhibitor-CDK2 binding through global docking and accelerated molecular dynamics simulations. INFORMATICS IN MEDICINE UNLOCKED 2022. [DOI: 10.1016/j.imu.2022.101069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
11
|
Baildya N, Ghosh NN, Chattopadhyay AP, Mandal V, Majumdar S, Ansary D, Sarkar MM. Inhibitory effect of compounds extracted from Monochoria hastata (L.) Solms on SARS-CoV-2 main protease: An insight from molecular docking and MD-simulation studies. J Mol Struct 2022; 1257:132644. [PMID: 35185220 PMCID: PMC8846558 DOI: 10.1016/j.molstruc.2022.132644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 02/06/2022] [Accepted: 02/15/2022] [Indexed: 11/29/2022]
Abstract
Using molecular docking and other studies, 20 compounds extracted from Monochoria hastata (L.) Solms were screened, and their inhibitory efficiency examined against main protease (3CLpro) of SARS CoV-2. All the compounds were found to binding with 3CLpro through van der Waals and electrostatic forces of attractions. Among them, Azelaic dihydrazide (ADZ) was found to have the highest docking score. 3CLpro-ADZ complex was studied by MD simulation. ADZ was found to disrupt the structure of 3CLpro after 2 ns. RMSD and RMSF analysis along with sequence and binding energy analysis suggest that ADZ can be a potential drug against SARS CoV-2.
Collapse
Affiliation(s)
- Nabajyoti Baildya
- Department of Chemistry, University of Kalyani, Kalyani 741235, India
| | - Narendra Nath Ghosh
- Department of Chemistry, University of Gour Banga, Mokdumpur, Malda 732103, India
| | | | - Vivekananda Mandal
- Plant and Microbial Physiology and Biochemistry Laboratory, Department of Botany, University of Gour Banga, Mokdumpur, Malda 732103, India
| | - Sourav Majumdar
- Department of Chemistry, Kandi Raj College, Kandi, Murshidabad, 742137, India
| | - Delwar Ansary
- Department of Chemistry, Dumkal College, Murshidabad, Domkal 742406, India
| | - Md Muttakin Sarkar
- Department of Chemistry, Dumkal College, Murshidabad, Domkal 742406, India
| |
Collapse
|
12
|
“Malancha” [Alternanthera philoxeroides (Mart.) Griseb.]: A Potential Therapeutic Option against Viral Diseases. Biomolecules 2022; 12:biom12040582. [PMID: 35454170 PMCID: PMC9025398 DOI: 10.3390/biom12040582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/07/2022] [Accepted: 04/11/2022] [Indexed: 02/01/2023] Open
Abstract
Alternanthera philoxeroides (Mart.) Griseb., commonly known as “Alligator weed” in English, and “Malancha” in Bengali, is a leafy vegetable from the family Amaranthaceae A. L. de Jussieu. This species is native to China, particularly to the provinces around the Yangtze River, other Far East and South-East Asian countries, and countries from other continents (e.g., South America). This plant also grows in certain areas in Australia, New Zealand, and the USA. While in Bangladesh the leaves of this plant are consumed as a vegetable, in China, this plant has been used widely as a traditional remedy for the treatment of various viral diseases (e.g., measles, influenza, and haemorrhagic fever). Flavonoids and saponins are the two largest groups of phytochemicals produced by this plant, and the antiviral property of this plant and its compounds has been studied extensively. This review article reviews all published literature on this plant and critically appraises its phytochemical profile linking to biomolecular interactions and therapeutic potential, particularly, against viral diseases.
Collapse
|
13
|
Hoque MM, Bari MA, Khan MW. Rh(II)‐mediated one‐pot synthesis of dihydrobenzofuran and spiro[2.5]oct‐1‐ene: Experimental and DFT studies. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mohammad Mazharol Hoque
- Department of Chemistry Bangladesh University of Engineering and Technology Dhaka Bangladesh
| | - Md. Abdul Bari
- Department of Chemistry Bangladesh University of Engineering and Technology Dhaka Bangladesh
| | - Md. Wahab Khan
- Department of Chemistry Bangladesh University of Engineering and Technology Dhaka Bangladesh
| |
Collapse
|
14
|
Said MA, Khan DJO, Al-blewi FF, Al-Kaff NS, Ali AA, Rezki N, Aouad MR, Hagar M. New 1,2,3-Triazole Scaffold Schiff Bases as Potential Anti-COVID-19: Design, Synthesis, DFT-Molecular Docking, and Cytotoxicity Aspects. Vaccines (Basel) 2021; 9:vaccines9091012. [PMID: 34579249 PMCID: PMC8472185 DOI: 10.3390/vaccines9091012] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/24/2021] [Accepted: 09/01/2021] [Indexed: 11/16/2022] Open
Abstract
Schiff bases encompassing a 1,2,3-triazole motif were synthesized using an efficient multi-step synthesis. The formations of targeted Schiff base ligands were confirmed by different spectroscopic techniques (FT-IR, 1H NMR, 13C NMR, and CHN analysis). The spectral data analysis revealed that the newly designed hydrazones exist as a mixture of trans-E and cis-E diastereomers. Densityfunctional theory calculations (DFT) for the Schiff bases showed that the trans-trans form has the lowest energy structure with maximum stability compared to the other possible geometrical isomers that could be present due to the orientation of the amidic NH-C=O group. The energy differences between the trans-trans on one side and syn-syn and syn-trans isomers on the other side were 9.26 and 5.56 kcal/mol, respectively. A quantitative structure-activity relationship investigation was also performed in terms of density functional theory. The binding affinities of the newly synthesized bases are, maybe, attributed to the presence of hydrogen bonds together with many hydrophobic interactions between the ligands and the active amino acid residue of the receptor. The superposition of the inhibitor N3 and an example ligand into the binding pocket of 7BQY is also presented. Further interesting comparative docking analyses were performed. Quantitative structure-activity relationship calculations are presented, illustrating possible inhibitory activity. Further computer-aided cytotoxicity analysis by Drug2Way and PASS online software was carried out for Schiff base ligands against various cancer cell lines. Overall, the results of this study suggest that these Schiff base derivatives may be considered for further investigation as possible therapeutic agents for COVID-19.
Collapse
Affiliation(s)
- Musa A. Said
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (D.J.O.K.); (F.F.A.-b.); (A.A.A.); (N.R.)
- Correspondence: (M.A.S.); (M.R.A.)
| | - Daoud J. O. Khan
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (D.J.O.K.); (F.F.A.-b.); (A.A.A.); (N.R.)
| | - Fawzia F. Al-blewi
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (D.J.O.K.); (F.F.A.-b.); (A.A.A.); (N.R.)
| | - Nadia S. Al-Kaff
- Department of Biology, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia;
| | - Adeeb A. Ali
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (D.J.O.K.); (F.F.A.-b.); (A.A.A.); (N.R.)
| | - Nadjet Rezki
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (D.J.O.K.); (F.F.A.-b.); (A.A.A.); (N.R.)
| | - Mohamed Reda Aouad
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia; (D.J.O.K.); (F.F.A.-b.); (A.A.A.); (N.R.)
- Correspondence: (M.A.S.); (M.R.A.)
| | - Mohamed Hagar
- Chemistry Department, College of Sciences, Taibah University, Yanbu 30799, Saudi Arabia;
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria 21321, Egypt
| |
Collapse
|
15
|
Abd-El-Aziz AS, Alsaggaf A, Assirey E, Naqvi A, Okasha RM, Afifi TH, Hagar M. A New Family of Benzo[ h]Chromene Based Azo Dye: Synthesis, In-Silico and DFT Studies with In Vitro Antimicrobial and Antiproliferative Assessment. Int J Mol Sci 2021; 22:2807. [PMID: 33802075 PMCID: PMC7998172 DOI: 10.3390/ijms22062807] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 12/27/2022] Open
Abstract
The high biological activity of the chromene compounds coupled with the intriguing optical features of azo chromophores prompted our desire to construct novel derivatives of chromene incorporating azo moieties 4a-l, which have been prepared via a three-component reaction of 1-naphthalenol-4-[(4-ethoxyphenyl) azo], 1, with the benzaldehyde derivatives and malononitrile. The structural identities of the azo-chromene 4a-l were confirmed on the basis of their spectral data and elemental analysis, and a UV-visible study was performed in a Dimethylformamide (DMF) solution for these molecules. Additionally, the antimicrobial activity was investigated against four human pathogens (Gram-positive and Gram-negative bacteria) and four fungi, employing an agar well diffusion method, with their minimum inhibitory concentrations being reported. Molecules 4a, 4g, and 4h were discovered to be more efficacious against Syncephalastrum racemosum (RCMB 05922) in comparison to the reference drugs, while compounds 4b and 4h demonstrated the highest inhibitory activity against Escherichia coli (E. coli) in evaluation against the reference drugs. Moreover, their cytotoxicity was assessed against three different human cell lines, including human colon carcinoma (HCT-116), human hepatocellular carcinoma (HepG-2), and human breast adenocarcinoma (MCF-7) with a selection of molecules illustrating potency against the HCT-116 and MCF-7 cell lines. Furthermore, the molecular modeling results depicted the binding interactions of the synthesized compounds 3b and 3h in the active site of the E. coli DNA gyrase B enzyme with a clear SAR (structure-activity relationship) analysis. Lastly, the density functional theory's (DFTs) theoretical calculations were performed to quantify the energy levels of the Frontier Molecular Orbitals (FMOs) and their energy gaps, dipole moments, and molecular electrostatic potentials. These data were utilized in the chemical descriptor estimations to confirm the biological activity.
Collapse
Affiliation(s)
- Alaa S. Abd-El-Aziz
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; (A.A.); (E.A.)
| | - Azhaar Alsaggaf
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; (A.A.); (E.A.)
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (A.N.); (R.M.O.)
| | - Eman Assirey
- Department of Chemistry, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; (A.A.); (E.A.)
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (A.N.); (R.M.O.)
| | - Arshi Naqvi
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (A.N.); (R.M.O.)
| | - Rawda M. Okasha
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (A.N.); (R.M.O.)
| | - Tarek H. Afifi
- Department of Chemistry, Taibah University, Madinah 30002, Saudi Arabia; (A.N.); (R.M.O.)
| | - Mohamed Hagar
- Department of Chemistry, College of Sciences, Taibah University, Yanbu 30799, Saudi Arabia;
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt
| |
Collapse
|
16
|
Al Sheikh Ali A, Khan D, Naqvi A, Al-blewi FF, Rezki N, Aouad MR, Hagar M. Design, Synthesis, Molecular Modeling, Anticancer Studies, and Density Functional Theory Calculations of 4-(1,2,4-Triazol-3-ylsulfanylmethyl)-1,2,3-triazole Derivatives. ACS OMEGA 2021; 6:301-316. [PMID: 33458482 PMCID: PMC7807778 DOI: 10.1021/acsomega.0c04595] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/09/2020] [Indexed: 05/07/2023]
Abstract
New conjugates of substituted 1,2,3-triazoles linked to 1,2,4-triazoles were synthesized starting from the appropriate S-propargylated 1,2,4-triazoles 7 and 8. Ligation of 1,2,4-triazoles to the 1,2,3-triazole core was performed through Cu(I)-catalyzed cycloaddition of 1,2,4-triazole-based alkyne side chain 7 and/or 8 with several un/functionalized alkyl- and/or aryl-substituted azides 9-15 to afford the desired 1,4-disubstituted 1,2,3-triazoles 16-27, using both classical and microwave methods. After their spectroscopic characterization (infrared, 1H, 13C nuclear magnetic resonance, and elemental analyses), an anticancer screening was carried out against some cancer cell lines including human colon carcinoma (Caco-2 and HCT116), human cervical carcinoma (HeLa), and human breast adenocarcinoma (MCF-7). The outcomes of this exploration revealed that compounds 17, 22, and 25 had a significant anticancer activity against MCF-7 and Caco-2 cancer cell lines with IC50 values of 0.31 and 4.98 μM, respectively, in relation to the standard reference drug, doxorubicin. Enzyme-docking examination was executed onto cyclin-dependent kinase 2; a promising aim for cancer medication. Synthesized compounds acquiring highest potency showcased superior interactions with the active site residue of the target protein and exhibited minimum binding energy. Finally, the density functional theory (DFT) calculations were carried out to confirm the outcomes of the molecular docking and the experimental findings. The chemical reactivity descriptors such as softness (δ), global hardness (η), electronegativity (χ), and electrophilicity were calculated from the levels of the predicted frontier molecular orbitals and their energy gap. The DFT results and the molecular docking calculation results explained the activity of the most expectedly active compounds 17, 22, and 25.
Collapse
Affiliation(s)
- Adeeb Al Sheikh Ali
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Daoud Khan
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Arshi Naqvi
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Fawzia Faleh Al-blewi
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Nadjet Rezki
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Mohamed Reda Aouad
- Department
of Chemistry, Faculty of Science, Taibah
University, Al-Madinah
Al-Munawarah 30002, Saudi
Arabia
| | - Mohamed Hagar
- Chemistry
Department, College of Sciences, Yanbu, Taibah University, Yanbu 30799, Saudi Arabia
- Chemistry
Department, Faculty of Science, Alexandria
University, Alexandria 21321, Egypt
| |
Collapse
|
17
|
Shawon J, Khan AM, Shahriar I, Halim MA. Improving the binding affinity and interaction of 5-Pentyl-2-Phenoxyphenol against Mycobacterium Enoyl ACP reductase by computational approach. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2021.100528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
|
18
|
Parveen S, Alnoman RB, Hagar M, Ahmed HA, Knight JG. Synthesis, Molecular Docking, and DFT Calculation of a Half‐Strapped BODIPY as Potential EGFR Inhibitor**. ChemistrySelect 2020. [DOI: 10.1002/slct.202003621] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Shazia Parveen
- Faculty of Science Chemistry Department Taibah University 46423 Yanbu Saudi Arabia
| | - Rua B. Alnoman
- Faculty of Science Chemistry Department Taibah University 46423 Yanbu Saudi Arabia
| | - Mohamad Hagar
- Faculty of Science Chemistry Department Taibah University 46423 Yanbu Saudi Arabia
- Faculty of Science Chemistry Department Alexandria University Alexandria Egypt
| | - Hoda A. Ahmed
- Faculty of Science Chemistry Department Taibah University 46423 Yanbu Saudi Arabia
- Faculty of Science Department of Chemistry Cairo University Cairo Egypt
| | - Julian G. Knight
- School of Chemistry Bedson Building Newcastle University Newcastle upon Tyne NE1 7RU UK
| |
Collapse
|
19
|
Investigation of Some Antiviral N-Heterocycles as COVID 19 Drug: Molecular Docking and DFT Calculations. Int J Mol Sci 2020; 21:ijms21113922. [PMID: 32486229 PMCID: PMC7312990 DOI: 10.3390/ijms21113922] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 02/07/2023] Open
Abstract
The novel coronavirus, COVID-19, caused by SARS-CoV-2, is a global health pandemic that started in December 2019. The effective drug target among coronaviruses is the main protease Mpro, because of its essential role in processing the polyproteins that are translated from the viral RNA. In this study, the bioactivity of some selected heterocyclic drugs named Favipiravir (1), Amodiaquine (2), 2'-Fluoro-2'-deoxycytidine (3), and Ribavirin (4) was evaluated as inhibitors and nucleotide analogues for COVID-19 using computational modeling strategies. The density functional theory (DFT) calculations were performed to estimate the thermal parameters, dipole moment, polarizability, and molecular electrostatic potential of the present drugs; additionally, Mulliken atomic charges of the drugs as well as the chemical reactivity descriptors were investigated. The nominated drugs were docked on SARS-CoV-2 main protease (PDB: 6LU7) to evaluate the binding affinity of these drugs. Besides, the computations data of DFT the docking simulation studies was predicted that the Amodiaquine (2) has the least binding energy (-7.77 Kcal/mol) and might serve as a good inhibitor to SARS-CoV-2 comparable with the approved medicines, hydroxychloroquine, and remdesivir which have binding affinity -6.06 and -4.96 Kcal/mol, respectively. The high binding affinity of 2 was attributed to the presence of three hydrogen bonds along with different hydrophobic interactions between the drug and the critical amino acids residues of the receptor. Finally, the estimated molecular electrostatic potential results by DFT were used to illustrate the molecular docking findings. The DFT calculations showed that drug 2 has the highest of lying HOMO, electrophilicity index, basicity, and dipole moment. All these parameters could share with different extent to significantly affect the binding affinity of these drugs with the active protein sites.
Collapse
|
20
|
Molecular docking, dynamics simulation and ADMET prediction of Acetaminophen and its modified derivatives based on quantum calculations. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1442-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
|
21
|
Homology Modeling of 5-alpha-Reductase 2 Using Available Experimental Data. Interdiscip Sci 2018; 11:475-484. [PMID: 29383563 DOI: 10.1007/s12539-017-0280-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 12/23/2017] [Accepted: 12/27/2017] [Indexed: 12/21/2022]
Abstract
5-Alpha-reductase 2 is an interesting pharmaceutical target for the treatment of several diseases, including prostate cancer, benign prostatic hyperplasia, male pattern baldness, acne, and hirsutism. One of the main approaches in computer aided drug design is structure-based drug discovery. However, the experimental 3D structure of 5-alpha-reductase 2 is not available at present. Therefore, a homology modeling method and molecular dynamics simulation were used to develop a reliable model of 5-alpha-reductase 2 for inhibitor pose prediction and virtual screening. Despite the low sequence identity between the target and template sequences, a useful 3D model of 5-alpha-reductase 2 was generated by the inclusion of experimental data.
Collapse
|
22
|
Rahman MS, Hossain SM, Rahman MT, Halim MA, Ishtiak MN, Kabir M. Determination of trace metal concentration in compost, DAP, and TSP fertilizers by neutron activation analysis (NAA) and insights from density functional theory calculations. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:618. [PMID: 29119383 DOI: 10.1007/s10661-017-6328-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 10/24/2017] [Indexed: 06/07/2023]
Abstract
Leaching of toxic metals from fertilizers is a growing concern in an agricultural country like Bangladesh due to the serious consequences in health and food chain. Fertilizers used in farming fields and nurseries (plant sales outlet) in the mid-southern part of Bangladesh were collected for the determination of toxic metals. This study employed the neutron activation method and a relative standardization approach. Three standard/certified reference materials, namely NIST coal fly ash 1633b, IAEA-Soil-7, and IAEA-SL-1 (lake sediment), were considered for elemental quantification. Concentration of As (2.63-16.73 mg/kg), Cr (40.93-261.77 mg/kg), Sb (0.47-63.58 mg/kg), Th (1.44-19.16 mg/kg), and U (1.90-209.41 mg/kg) were determined in fertilizers. High concentrations of Cr, Sb, and U were detected in some compost and phosphate fertilizers (TSP and diammonium phosphate (DAP)) in comparison with the IAEA/European market standard and other studies. Quantum mechanical calculations were performed to understand the molecular level interaction of CrO3, Sb2O3, and AsO3, with DAP by employing density functional theory with the B3LYP/SDD level of theory. Our results indicated that CrO3 and Sb2O3 have strong binding affinity with DAP compared to AsO3, which supports the experimental results. These compounds attached to the phosphate group through covalent-like bonding with oxygen. The frontier molecular orbital calculation indicated that HOMO-LUMO gap of the AsO3-DAP (5.46 eV) and Sb2O3-DAP (6.48 eV) complexes are relatively lower than the CrO3-DAP, which indicates that As and Sb oxides are chemically more prone to attach with the phosphate group of DAP fertilizer.
Collapse
Affiliation(s)
- Md Sajjadur Rahman
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, 57007, USA
| | - Syed Mohammod Hossain
- Reactor and Neutron Physics Division, INST, Atomic Energy Research Establishment, Savar, GPO Box-3787, Dhaka, 1000, Bangladesh
| | - Mir Tamzid Rahman
- Department of Chemistry, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh.
| | - Mohammad A Halim
- Division of Quantum Chemistry, Green Research Centre, BICCB, 38 Green Road West, Dhaka, 1205, Bangladesh
| | - Mohammad Niaz Ishtiak
- Division of Quantum Chemistry, Green Research Centre, BICCB, 38 Green Road West, Dhaka, 1205, Bangladesh
| | - Mahbub Kabir
- Department of Chemistry, Jahangirnagar University, Savar, Dhaka, 1342, Bangladesh
| |
Collapse
|
23
|
Khan AM, Shawon J, Halim MA. Multiple receptor conformers based molecular docking study of fluorine enhanced ethionamide with mycobacterium enoyl ACP reductase (InhA). J Mol Graph Model 2017; 77:386-398. [DOI: 10.1016/j.jmgm.2017.09.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 09/07/2017] [Accepted: 09/09/2017] [Indexed: 01/11/2023]
|