Bioactivity Prediction Based on Matched Molecular Pair and Matched Molecular Series Methods.

Abstract:

BACKGROUND:Enhancing a compound's biological activity is the central task for lead optimization in small molecules drug discovery. However, it is laborious to perform many iterative rounds of compound synthesis and bioactivity tests. To address the issue, it is highly demanding to develop high quality in silico bioactivity prediction approaches, to prioritize such more active compound derivatives and reduce the trial-and-error process. METHODS:Two kinds of bioactivity prediction models based on a large-scale structure-activity relationship (SAR) database were constructed. The first one is based on the similarity of substituents and realized by matched molecular pair analysis, including SA, SA_BR, SR, and SR_BR. The second one is based on SAR transferability and realized by matched molecular series analysis, including Single MMS pair, Full MMS series, and Multi single MMS pairs. Moreover, we also defined the application domain of models by using the distance-based threshold. RESULTS:Among seven individual models, Multi single MMS pairs bioactivity prediction model showed the best performance (R2 = 0.828, MAE = 0.406, RMSE = 0.591), and the baseline model (SA) produced the most lower prediction accuracy (R2 = 0.798, MAE = 0.446, RMSE = 0.637). The predictive accuracy could further be improved by consensus modeling (R2 = 0.842, MAE = 0.397 and RMSE = 0.563). CONCLUSION:An accurate prediction model for bioactivity was built with a consensus method, which was superior to all individual models. Our model should be a valuable tool for lead optimization.

journal_name

Curr Pharm Des

authors

Ding X,Cui C,Wang D,Zhao J,Zheng M,Luo X,Jiang H,Chen K

doi

10.2174/1381612826666200427111309

subject

Has Abstract

pub_date

2020-01-01 00:00:00

pages

4195-4205

issue

33

eissn

1381-6128

issn

1873-4286

pii

CPD-EPUB-106159

journal_volume

26

pub_type

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