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Conditional probability: a new fusion method for merging disparate virtual screening results
John W Raymond1, Mehran Jalaie, Mary P Bradley
1Pfizer Global Research and Development, Discovery Technologies, Ann Arbor Laboratories, 2800 Plymouth Road, Ann Arbor, Michigan 48105, USA. john.raymond@pfizer.com
Summary
This study presents a novel consensus scoring method for combining virtual screening results. The new approach, based on conditional probabilities, outperforms existing methods in identifying active compounds.
Area of Science:
- Computational chemistry
- Drug discovery
- Bioinformatics
Background:
- Virtual screening is crucial for identifying potential drug candidates.
- Combining results from multiple virtual screening methods can improve accuracy.
- Existing fusion methods like Sum-rank have limitations.
Purpose of the Study:
- To introduce a new consensus scoring approach for merging virtual screening results.
- To evaluate the performance of the new method against established techniques.
- To demonstrate the benefits of consensus scoring in drug discovery.
Main Methods:
- Developed a novel consensus scoring approach utilizing conditional probabilities.
- Experimentally evaluated the method using multiple ligand-based virtual screening techniques.
- Compared the new method against two variations of the Sum-rank fusion method.
Main Results:
- The new consensus scoring method performed as well as or better than Sum-rank fusion variations.
- Consensus scoring consistently increased the number of active compounds retrieved compared to individual methods.
- The approach demonstrated improved hit rates in virtual screening experiments.
Conclusions:
- The proposed consensus scoring method is effective for merging virtual screening results.
- This approach enhances the identification of active compounds in drug discovery pipelines.
- Conditional probability-based consensus scoring offers a valuable advancement in computational drug design.