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Biological and Biophysical Methods for Evaluation of Inhibitors of Sortase A in Staphylococcus aureus: An Overview

Debajit Dewan,A. Basu,Debraj Dolai,Sarmistha Pal

Published 2024 in Cell Biochemistry and Function

ABSTRACT

Staphylococcus aureus, one of the most notorious pathogens, develops antibiotic resistance by the formation of a thick layer of exopolysaccharides known as biofilms. Sortase A, a transpeptidase responsible for biofilm formation and attachment to the host surface, has emerged as an important drug target for development of anti‐virulence agents. A number of sortase A inhibitors, both peptide and non‐peptides are reported which involved the use of several experiments which may provide insights regarding binding affinity, specificity, safety, and efficacy of ligands. In this review, we focus on the principles, pros and cons, and the type of information obtained from biophysical (FRET assay, Microscale Thermophoresis, Surface Plasmon Resonance, CD spectroscopy etc.) and biological (cell viability assay, biofilm formation assay, CLSM, western blot analysis, in vivo characterization on mice etc.) methods for estimation of probable sortase A inhibitors, which might be helpful to the researchers who might be interested to delve into the development of sortase A inhibitors as a drug, to address the burning question of antimicrobial resistance (AMR).

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