Targeting ATP synthase of Acenobacter baumannii

Utilizing Receptor.AI’s novel approach to overcome multidrug resistance

122

hit candidates
selected

11

compounds
tested

2

potent compounds
identified

4 μM

IC50 value reached with
the first iteration

*Project workflow

01/ Background

  • A. baumannii is responsible for threatening hospital infections.
  • The goal is to develop inhibitors for A. baumannii ATP synthase, which would counter the drug resistance mechanism.

02/ Methodology

  • Pocket identification performed using Receptor.AI's pocket detection pipeline with proprietary AI model.
  • 8M stock library subjected to virtual screening.
  • AI docking with ArtiDock and target-specific AI rescoring.
  • 122 hit candidates selected with smart consensus function.
  • 11 compounds subjected to bacterial growth assay.
  • The antimicrobial effect of inhibitors (IC50) was determined.

03/ Binding Pockets

  • 2 binding pockets identified.
  • One pocket identified in the lagging target’s functional state and the other in the leading state.
  • Both pockets used for docking with ArtiDock.
*Structure of ATP synthase with the lagging (left) 
and leading (right) binding sites
*Dose-Response relationship for the best hit 
(inhibition of A. baumannii growth)

04/ Screening Results

  • 2 hits confirmed with IC50 12.5 μM and 4 μM.
  • Both shown to be safer on human cells than existing competitors.