Chemical Biology of Sortase A Inhibition: A Gateway to Anti-infective Therapeutic Agents

J Med Chem. 2021 Sep 23;64(18):13097-13130. doi: 10.1021/acs.jmedchem.1c00386. Epub 2021 Sep 13.

Abstract

Staphylococcus aureus is the leading cause of hospital-acquired infections. The enzyme sortase A, present on the cell surface of S. aureus, plays a key role in bacterial virulence without affecting the bacterial viability. Inhibition of sortase A activity offers a powerful but clinically less explored therapeutic strategy, as it offers the possibility of not inducing any selective pressure on the bacteria to evolve drug-resistant strains. In this Perspective, we offer a chemical space narrative for the design of sortase A inhibitors, as delineated into three broad domains: peptidomimetics, natural products, and synthetic small molecules. This provides immense opportunities for medicinal chemists to alleviate the ever-growing crisis of antibiotic resistance.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aminoacyltransferases / antagonists & inhibitors*
  • Aminoacyltransferases / metabolism
  • Animals
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / metabolism
  • Anti-Bacterial Agents / pharmacology*
  • Bacterial Proteins / antagonists & inhibitors*
  • Bacterial Proteins / metabolism
  • Cell Line
  • Cysteine Endopeptidases / metabolism
  • Cysteine Proteinase Inhibitors / chemistry
  • Cysteine Proteinase Inhibitors / metabolism
  • Cysteine Proteinase Inhibitors / pharmacology*
  • Humans
  • Molecular Docking Simulation
  • Protein Binding
  • Staphylococcus aureus / drug effects
  • Virulence / drug effects

Substances

  • Anti-Bacterial Agents
  • Bacterial Proteins
  • Cysteine Proteinase Inhibitors
  • Aminoacyltransferases
  • sortase A
  • Cysteine Endopeptidases