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Abstract Title:

Eugenol derivatives prospectively inhibit L-asparaginase: A heady target protein of Salmonella typhimurium.

Abstract Source:

Microb Pathog. 2017 Nov 11. Epub 2017 Nov 11. PMID: 29138086

Abstract Author(s):

Archana Vimal, Anubhuti Jha, Awanish Kumar

Article Affiliation:

Archana Vimal

Abstract:

Salmonella typhimurium is the causative agent of severe human infections and mortality throughout the world. Pacing advent of new resistance mechanisms in this microorganism exists, rendering treatment of infectious disease difficult. Ciprofloxacin is no longer considered the first choice of antimicrobial agent due to the emergence of resistance. Therefore, the need for scenario is to find out novel drug target and its potential inhibitor to fight against this pathogen. The present study was undertaken to find out a novel drug target and its inhibitor for improving the current therapeutic methods for treating Salmonella infections. It is found that l-asparaginase is exploited by the pathogen for its survival benefit. Therefore, it could be targeted to fight against lethality caused by Salmonella infections. In the present in silico study, the 3-D structure of the enzyme l-asparaginase was modelled by using homology modeling technique. Thereafter, molecular docking studies and ADMET prediction to assess pharmacokinetic profiles of test ligands (eugenol and its derivative) was performed. The results show that eugenol and its derivative are capable of inhibiting the Salmonella virulent protein l-asparaginase. There were 18 ligands including ciprofloxacin (used as reference) were docked. The lowest binding energy was observed with eugenol derivative 8 i.e -5.836 kcal/mol while for ciprofloxacin was -4.661 kcal/mol. The docking of the eugenol derivative 8 with l-asparaginase revealed a strong interaction between them with two hydrogen bonds. Thr 35 and Asp 116 residues are actively participating in this interaction. The result of ADMET profiling suggeststhe potency of eugenol and its derivatives against Salmonellal-asparaginase-II as a compelling drug candidate. These findings provide useful information on the biological role, structure-based drug design and potent inhibitor of l-asparaginase for the development of effective therapeutic molecule against Salmonella infection.

Study Type : In Vitro Study
Additional Links
Pharmacological Actions : Antimicrobial : CK(776) : AC(352)

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