PreprintCited by 2Protein Structure and DynamicsMachine Learning in BioinformaticsComputational Drug Discovery Methods

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Protein pKa prediction with machine learning

Open access

Preprint — published as 10.1021/acsomega.1c05440 · Paper page

Abstract

Protein pKa prediction is essential for the investigation of pH-associated relationship between protein structure and function. In this work, we introduce a deep learning based protein pKa predictor DeepKa, which is trained with 12809 pKa's derived from continuous constant pH molecular dynamics (CpHMD) simulations of 279 soluble proteins. Here the CpHMD implemented in the Amber molecular dynamics package has been employed (Huang, Harris, and Shen J. Chem. Inf. Model. 2018, 58, 1372-1383). Notably, to deal with the finite-size effect, grid charges are proposed to represent electrostatics, but rather the previously used atomic charges. We show that the prediction accuracy by DeepKa is close to that by CpHMD benchmarking simulations, validating DeepKa as an efficient protein pKa predictor. In addition, the training dataset created in this study can be applied to the development of machine learning based protein pKa predictors in future. Finally, the new grid charge representation is general and applicable to other topics, like the protein-ligand binding affinity prediction.

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Crossref · 10.26434/chemrxiv-2021-7gk5l

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Metadata

Authors
Cai, Z., Luo, F., Wang, Y., Li, E., & Huang, Y.
Affiliations
Jimei University (CN)
Published
2021-07-29
OpenAlex
W4206220087
Cited by
2
References
2
Citations by year
2023: 1 · 2022: 1
Type
posted content
Language
en
Open access
Funders
National Natural Science Foundation of China (11804114)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Machine Learning in Bioinformatics
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Drug Discovery › Computational Drug Discovery Methods
Keywords
electrostatics, finite-size effects, protein-ligand binding affinity prediction, machine learning predictors

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