Improving ΔΔG Predictions with a Multitask Convolutional Siamese Network.
Improving ΔΔG Predictions with a Multitask Convolutional Siamese Network.
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DOI:
10.1021/acs.jcim.1c01497
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发表时间:
2022-04-25
影响因子:
5.6
通讯作者:
Koes, David Ryan
中科院分区:
文献类型:
--
作者:
McNutt, Andrew T.;Koes, David Ryan
The lead optimization phase of drug discovery refines an initial hit molecule for desired properties, especially potency. Synthesis and experimental testing of the small perturbations during this refinement can be quite costly and time consuming. Relative binding free energy (RBFE, also referred to as ΔΔG) methods allow the estimation of binding free energy changes after small changes to a ligand scaffold. Here we propose and evaluate a Convolutional Neural Network (CNN) Siamese network for the prediction of RBFE between two bound ligands. We show that our multi-task loss is able to improve on a previous state-of-the-art Siamese network for RBFE prediction via increased regularization of the latent space. The Siamese network architecture is well suited to the prediction of RBFE in comparison to a standard CNN trained on the same data (Pearson’s R of 0.553 and 0.5, respectively). When evaluated on a left-out protein family, our CNN Siamese network shows variability in its RBFE predictive performance depending on the protein family being evaluated (Pearson’s R ranging from −0.44 to 0.97). RBFE prediction performance can be improved during generalization by injecting only a few examples (few-shot learning) from the evaluation dataset during model training.
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影响因子:
14.9
作者:
Mistry J;Chuguransky S;Williams L;Qureshi M;Salazar GA;Sonnhammer ELL;Tosatto SCE;Paladin L;Raj S;Richardson LJ;Finn RD;Bateman A
通讯作者:
Bateman A
影响因子:
5.6
作者:
Francoeur PG;Masuda T;Sunseri J;Jia A;Iovanisci RB;Snyder I;Koes DR
通讯作者:
Koes DR
DOI:
10.1093/bioinformatics/bty374
发表时间:
2018-11-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Stepniewska-Dziubinska MM;Zielenkiewicz P;Siedlecki P
通讯作者:
Siedlecki P
影响因子:
6.3
作者:
Genheden S;Ryde U
通讯作者:
Ryde U
影响因子:
3.5
作者:
Spitzer, Russell;Jain, Ajay N.
通讯作者:
Jain, Ajay N.