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Behera S, Dash PP, Bishoyi AK, Dash K, Mohanty P, Sahoo CR, Padhy RN, Mishra M, Ghosh BN, Sahoo H, Jali BR. Protein interactions, molecular docking, antimicrobial and antifungal studies of terpyridine ligands. J Biomol Struct Dyn 2023; 41:11274-11285. [PMID: 36562209 DOI: 10.1080/07391102.2022.2161012] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Resistance to antibiotics/antibacterials/antifungals in pathogenic microbes has been developing over the past few decades and has recently become a commonplace public-health peril. Thus, alternative nontoxic potent antibiotic agents are covertly needed to control antibiotic-resistant outbreaks. In an effort to combat the challenges posed by the co-occurrence of multidrug resistance, two terpyridine ligands 4'-(4-N,N'-dimethylaminophenyl)-2,2':6',2″-terpyridine (L1) and 4'-(4-tolyl)-2,2':6',2″-terpyridine (L2) have been designed, prepared and confirmed their structure by spectral studies. Thereafter, antimicrobial assay was performed against gram positive and negative bacterial strains along with fungal strains. Both compounds L1 and L2 exhibited remarkable inhibitory activities against bacteria, Escherichia coli and Staphylococcus aureus at MIC values 6.25 and 3.125 µg/ml, respectively. In addition, in silico molecular docking studies were ascertained with bacterial DNA gyrase and fungal demethylase. Furthermore, both L1 and L2 could bind Bovine Serum Albumin (BSA) protein and binding interaction has been studied with the help of UV-Visible and fluorescence spectroscopy. While fluorescence of BSA unperturbed in the presence of L2, an addition of L1 to the solution of BSA resulted significant quenching. The binding constant calculations at different temperature confirmed that the fluorescence quenching between BSA and L1 is predominantly static in nature. The toxicity of L1 and L2 was checked using Drosophila melanogaster. The toxicity analysis suggest both the dyes are non-cytotoxic in nature.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- S Behera
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Odisha, India
| | - Pragyan P Dash
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Odisha, India
| | - Ajit K Bishoyi
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed University, Bhubaneswar, Odisha, India
| | - K Dash
- Department of Life Science, National Institute of Technology, Rourkela, India
| | - P Mohanty
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Odisha, India
| | - Chita R Sahoo
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed University, Bhubaneswar, Odisha, India
| | - Rabindra N Padhy
- Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha 'O' Anusandhan Deemed University, Bhubaneswar, Odisha, India
| | - M Mishra
- Department of Life Science, National Institute of Technology, Rourkela, India
| | - B N Ghosh
- Department of Chemistry, National Institute of Technology, Silchar, India
| | - H Sahoo
- Department of Chemistry, National Institute of Technology, Rourkela, India
| | - B R Jali
- Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Odisha, India
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