Identification of a Potential Inhibitor Targeting MurC Ligase of the Drug Resistant Pseudomonas aeruginosa Strain through Structure-Based Virtual Screening Approach and In Vitro Assay.

Abstract:

BACKGROUND & OBJECTIVE:Pseudomonas aeruginosa shows resistance to a large number of antibiotics, including carbapenems and third generation cephalosporin. According to the World Health Organization global report published in February 2017, Pseudomonas aeruginosa is on the priority list among resistant bacteria, for which new antibiotics are urgently needed. Peptidoglycan serves as a good target for the discovery of novel antimicrobial drugs. METHODS:Biosynthesis of peptidoglycan is a multi-step process involving four mur enzymes. Among these enzymes, UDP-N-acetylmuramate-L-alanine ligase (MurC) is considered to be an excellent target for the design of new classes of antimicrobial inhibitors in gram-negative bacteria. RESULTS:In this study, a homology model of Pseudomonas aeruginosa MurC ligase was generated and used for virtual screening of chemical compounds from the ZINC Database. The best screened inhibitor i.e. N, N-dimethyl-2-oxo-2,3-dihydro-1H-1,3-benzodiazole-5-sulfonamide was then validated experimentally through inhibition assay. CONCLUSION:The presented results based on combined computational and in vitro analysis open up new horizons for the development of novel antimicrobials against this pathogen.

journal_name

Curr Pharm Biotechnol

authors

Messaoudi A,Zoghlami M,Basharat Z,Sadfi-Zouaoui N

doi

10.2174/1389201020666190719123133

subject

Has Abstract

pub_date

2019-01-01 00:00:00

pages

1203-1212

issue

14

eissn

1389-2010

issn

1873-4316

pii

CPB-EPUB-99776

journal_volume

20

pub_type

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