Identification of a Potential Inhibitor Targeting MurC Ligase of the Drug Resistant Pseudomonas aeruginosa Strain...

Area of Science:

• Microbiology
• Drug Discovery
• Computational Chemistry

Background:

• Pseudomonas aeruginosa is a priority pathogen with high antibiotic resistance, necessitating novel therapeutic strategies.
• Peptidoglycan biosynthesis is a validated target for antimicrobial drug development.
• The UDP-N-acetylmuramate-L-alanine ligase (MurC) enzyme is a key target in peptidoglycan synthesis for gram-negative bacteria.

Purpose of the Study:

• To identify novel inhibitors of Pseudomonas aeruginosa MurC ligase.
• To explore computational methods for discovering new antimicrobial agents.
• To validate potential drug candidates through experimental assays.

Main Methods:

• Generation of a homology model for Pseudomonas aeruginosa MurC ligase.
• Virtual screening of chemical compounds using the ZINC Database.
• Experimental validation of the top-ranked inhibitor via inhibition assays.

Main Results:

• A homology model of Pseudomonas aeruginosa MurC was successfully created.
• Virtual screening identified N, N-dimethyl-2-oxo-2,3-dihydro-1H-1,3-benzodiazole-5-sulfonamide as a potential inhibitor.
• Experimental assays confirmed the inhibitory activity of the identified compound.

Conclusions:

• The study presents a novel computational and in vitro approach for identifying antimicrobials.
• The identified compound shows promise as a starting point for developing new antibiotics against Pseudomonas aeruginosa.
• This research opens new avenues for combating antibiotic resistance through targeted enzyme inhibition.