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DecoyFinder: an easy-to-use python GUI application for building target-specific decoy sets.

Adrià Cereto-Massagué1, Laura Guasch, Cristina Valls

  • 1Grup de Recerca en Nutrigenòmica, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Campus de Sescelades, C/Marcel.lí Domingo s/n, 43007 Tarragona, Spain.

Bioinformatics (Oxford, England)
|April 28, 2012
PubMed
Summary
This summary is machine-generated.

DecoyFinder is a new application that generates target-specific decoy molecules for virtual screening. It overcomes limitations of existing decoy databases by selecting compounds based on physical and chemical similarity to active ligands.

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Area of Science:

  • Computational chemistry
  • Drug discovery

Background:

  • Decoys are essential for validating molecular docking and virtual screening workflows.
  • Existing decoy databases, like the Directory of Useful Decoys (DUD), have limited coverage.
  • There is a need for methods to generate custom decoy sets for specific targets.

Purpose of the Study:

  • To develop a novel application, DecoyFinder, for generating target-specific decoy sets.
  • To address the limitations of existing decoy databases in terms of target coverage.
  • To provide a tool for researchers to create tailored decoy libraries for virtual screening.

Main Methods:

  • DecoyFinder selects decoys from a compound database based on similarity to active ligands.
  • Selection criteria include five physical descriptors: molecular weight, rotational bonds, hydrogen bond donors/acceptors, and octanol-water partition coefficient.
  • Chemical similarity is assessed using Tanimoto coefficients of MACCS fingerprints to ensure decoys are not chemically related to active ligands.

Main Results:

  • DecoyFinder successfully generates target-specific decoy sets.
  • The application allows for the creation of custom decoy libraries beyond the scope of existing databases.
  • Validation on 10 DUD targets demonstrates the utility of DecoyFinder.

Conclusions:

  • DecoyFinder is the first application designed to build custom, target-specific decoy sets.
  • This tool enhances the validation process for molecular docking and virtual screening.
  • DecoyFinder expands the availability of decoys for drug discovery research.