Modeling Small-Molecule Reactivity Identifies Promiscuous Bioactive Compounds
2018
Scientists rely on high-throughput screening tools to identify promising small-molecule compounds for the development of biochemical probes and drugs. This study focuses on the identification of promiscuous bioactive compounds, which are compounds that appear active in many high-throughput screening experiments against diverse targets, but are often false-positives which may not be easily developed into successful probes. These compounds can exhibit bioactivity due to nonspecific, intractable mechanisms of action and/or by interference with specific assay technology readouts. Such “frequent hitters” are now commonly identified using substructure filters, including pan assay interference compounds (PAINS). Herein, we show mechanistic modeling of small-molecule reactivity using deep learning can improve upon PAINS filters when modeling promiscuous bioactivity in PubChem assays. Without training on high throughput screening data, a deep learning model of small-molecule reactivity achieves a sensitivity and s...
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