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Grzybowski, Bartosz A.
School of Natural Science
Research Interests
  • Nano science
  • Nanomaterials
  • Programmable Reactions
  • Chemical Networks
  • Cellular Dynamics

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Minimal-uncertainty prediction of general drug-likeness based on Bayesian neural networks

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Title
Minimal-uncertainty prediction of general drug-likeness based on Bayesian neural networks
Author
Beker, WiktorWolos, AgnieszkaSzymkuc, SaraGrzybowski, Bartosz A.
Issue Date
2020-08
Publisher
SPRINGERNATURE
Citation
NATURE MACHINE INTELLIGENCE, v.2, no.8, pp.457 - 465
Abstract
Triaging unpromising lead molecules early in the drug discovery process is essential for accelerating its pace while avoiding the costs of unwarranted biological and clinical testing. Accordingly, medicinal chemists have been trying for decades to develop metrics-ranging from heuristic measures to machine-learning models-that could rapidly distinguish potential drugs from small molecules that lack drug-like features. However, none of these metrics has gained universal acceptance and the very idea of 'drug-likeness' has recently been put into question. Here, we evaluate drug-likeness using different sets of descriptors and different state-of-the-art classifiers, reaching an out-of-sample accuracy of 87-88%. Remarkably, because these individual classifiers yield different Bayesian error distributions, their combination and selection of minimal-variance predictions can increase the accuracy of distinguishing drug-like from non-drug-like molecules to 93%. Because total variance is comparable with its aleatoric contribution reflecting irreducible error inherent to the dataset (as opposed to the epistemic contribution due to the model itself), this level of accuracy is probably the upper limit achievable with the currently known collection of drugs. When designing new drugs, there are countless ways to create molecules, yet only a few interact with biological targets. Beker and colleagues provide here a graph neural network based metric for drug-likeness that can guide the search.
URI
https://scholarworks.unist.ac.kr/handle/201301/49865
URL
https://www.nature.com/articles/s42256-020-0209-y
DOI
10.1038/s42256-020-0209-y
ISSN
2522-5839
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CHM_Journal Papers
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