Genome-wide-scale prediction of compound−protein interactions using foundation and language models based on three-dimensional structures of compounds and proteins

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ID: 330010
2026
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Abstract
MOTIVATION: The identification of compound-protein interactions (CPIs) is crucial in the early stages of drug discovery. However, machine-learning (ML)-based methods based on one- and two-dimensional representations cannot capture important geometric information on the binding sites of CPIs, which limits their predictive accuracy. RESULTS: We propose DESTIN (dual structure-guided estimation of substance-target interaction networks), an ML framework for CPI prediction on a genome-wide scale from the three-dimensional (3D) structures of compounds and proteins. We constructed compound feature vectors that spatially reflect stable 3D conformations from a quantum-chemical perspective by fine-tuning a 3D structure-based foundation model. Furthermore, we constructed protein feature vectors leveraging sequence-based structure representations and protein language models, even for proteins that do not have 3D structures determined experimentally. CPI prediction was performed using an integrative ML model on 3D structure-aware feature vectors for compounds and proteins. The effectiveness of the proposed model was validated via rigorous benchmark tests on practical scenarios. DESTIN exhibited good predictive performance, even for structurally complex and pharmacologically important membrane proteins. These results show that DESTIN is promising for various pharmaceutical applications. AVAILABILITY: All source code and data supporting this study are publicly available on GitHub and archived on Zenodo (https://doi.org/10.5281/zenodo.21759701). SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.
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Authors 優雅 森山, Yuki Matsukiyo, Tsuyoshi Kimura, Hiyori Yamamoto, Yuko Sakajiri, Tomokazu Shibata, Ryusuke Sawada, Yoshihiro Yamanishi
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Journal BMC Bioinformatics
Year 2026
DOI
10.1093/bioinformatics/btag710
URL
https://doi.org/10.1093/bioinformatics/btag710
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