CENsible: Interpretable Insights into Small-Molecule Binding with Context Explanation Networks.

Journal: Journal of chemical information and modeling
Published Date:

Abstract

We present a novel and interpretable approach for assessing small-molecule binding using context explanation networks. Given the specific structure of a protein/ligand complex, our CENsible scoring function uses a deep convolutional neural network to predict the contributions of precalculated terms to the overall binding affinity. We show that CENsible can effectively distinguish active vs inactive compounds for many systems. Its primary benefit over related machine-learning scoring functions, however, is that it retains interpretability, allowing researchers to identify the contribution of each precalculated term to the final affinity prediction, with implications for subsequent lead optimization.

Authors

  • Roshni Bhatt
    Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States.
  • David Ryan Koes
    Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Suite 3064, Biomedical Science Tower 3 (BST3), 3501 Fifth Avenue, Pittsburgh, PA, 15260, USA. dkoes@pitt.edu.
  • Jacob D Durrant
    Department of Chemistry & Biochemistry and the National Biomedical Computation Resource, University of California, San Diego , La Jolla, California 92093, United States.