Abstract
We release a new, high quality data set of 1162 PDE10A inhibitors with experimentally determined binding affinities together with 77 PDE10A X-ray co-crystal structures from a Roche legacy project. This data set is used to compare the performance of different 2D- and 3D-machine learning (ML) as well as empirical scoring functions for predicting binding affinities with high throughput. We simulate use cases that are relevant in the lead optimization phase of early drug discovery. ML methods perform well at interpolation, but poorly in extrapolation scenarios—which are most relevant to a real-world application. Moreover, we find that investing into the docking workflow for binding pose generation using multi-template docking is rewarded with an improved scoring performance. A combination of 2D-ML and 3D scoring using a modified piecewise linear potential shows best overall performance, combining information on the protein environment with learning from existing SAR data.
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Data availability
Code for the docking workflow is available at https://github.com/ccdc-opensource/science-paper-rf-machine-learned-scoring-2022.git.
Code availability
Code to calculate RF values is available at https://github.com/jasonccole/relative-interaction-frequencies. Docking poses are available at https://doi.org/10.6084/m9.figshare.20055014.
Abbreviations
- ACNN:
-
Atomic convolutional neural network
- LO:
-
Lead optimization
- MCS:
-
Maximum common substructure
- PDE10A:
-
Phosphodiesterase 10A
- RF:
-
Ratio of frequencies
- SAR:
-
Structure-activity relationship
- tSNE:
-
T-distributed stochastic neighbor embedding
References
Kuhn B, Fuchs JE, Reutlinger M et al (2011) Rationalizing tight ligand binding through cooperative interaction networks. J Chem Inf Model 51:3180–3198. https://doi.org/10.1021/ci200319e
Chan L, Morris GM, Hutchison GR (2021) Understanding conformational entropy in small molecules. J Chem Theory Comput 17:2099–2106. https://doi.org/10.1021/acs.jctc.0c01213
Tosstorff A, Cole JC, Taylor R et al (2020) Identification of noncompetitive protein–ligand interactions for structural optimization. J Chem Inf Model 60:6595–6611. https://doi.org/10.1021/acs.jcim.0c00858
Bash PA, Singh UC, Langridge R, Kollman PA (1987) Free energy calculations by computer simulation. Science 236:564–568. https://doi.org/10.1126/science.3576184
Hochuli J, Helbling A, Skaist T et al (2018) Visualizing convolutional neural network protein-ligand scoring. J Mol Graph Model 84:96–108. https://doi.org/10.1016/j.jmgm.2018.06.005
Brown BP, Mendenhall J, Geanes AR, Meiler J (2021) General purpose structure-based drug discovery neural network score functions with human-interpretable pharmacophore maps. J Chem Inf Model 61:603–620. https://doi.org/10.1021/acs.jcim.0c01001
Gomes J, Ramsundar B, Feinberg EN, Pande VS (2017) Atomic convolutional networks for predicting protein-ligand binding affinity. Arxiv. https://doi.org/10.48550/arXiv.1703.10603
Wang R, Fang X, Lu Y, Wang S (2004) The PDBbind database: collection of binding affinities for protein−ligand complexes with known three-dimensional structures. J Med Chem 47:2977–2980. https://doi.org/10.1021/jm030580l
Liu T, Lin Y, Wen X et al (2007) BindingDB: a web-accessible database of experimentally determined protein–ligand binding affinities. Nucleic Acids Res 35:D198–D201. https://doi.org/10.1093/nar/gkl999
Affinity Data PDB code 2W9H. http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_pdbids.jsp?pdbids_submit=Search&pdbids=2W9H. Accessed 26 Jan 2022
Mysinger MM, Carchia M, John JI, Shoichet BK (2012) Directory of Useful Decoys, Enhanced (DUD-E): better ligands and decoys for better benchmarking. J Med Chem 55:6582–6594. https://doi.org/10.1021/jm300687e
Rohrer SG, Baumann K (2009) Maximum Unbiased Validation (MUV) data sets for virtual screening based on pubchem bioactivity data. J Chem Inf Model 49:169–184. https://doi.org/10.1021/ci8002649
Tran-Nguyen V-K, Jacquemard C, Rognan D (2020) LIT-PCBA: an unbiased data set for machine learning and virtual screening. J Chem Inf Model 60:4263–4273. https://doi.org/10.1021/acs.jcim.0c00155
Chappie TA, Helal CJ, Hou X (2012) Current landscape of phosphodiesterase 10A (PDE10A) inhibition. J Med Chem 55:7299–7331. https://doi.org/10.1021/jm3004976
Jones G, Willett P, Glen RC et al (1997) Development and validation of a genetic algorithm for flexible docking. J Mol Biol 267:727–748. https://doi.org/10.1006/jmbi.1996.0897
Korb O, Stützle T, Exner TE (2009) Empirical scoring functions for advanced protein−ligand docking with PLANTS. J Chem Inf Model 49:84–96. https://doi.org/10.1021/ci800298z
Tosstorff A, Cole JC, Bartelt R, Kuhn B (2021) Augmenting structure-based design with experimental protein-ligand interaction data: molecular recognition, interactive visualization, and rescoring. Chem Med Chem 16:3428–3438. https://doi.org/10.1002/cmdc.202100387
Feinberg EN, Sur D, Wu Z et al (2018) PotentialNet for molecular property prediction. ACS Central Sci 4:1520–1530. https://doi.org/10.1021/acscentsci.8b00507
Xiong Z, Wang D, Liu X et al (2020) Pushing the boundaries of molecular representation for drug discovery with the graph attention mechanism. J Med Chem 63:8749–8760. https://doi.org/10.1021/acs.jmedchem.9b00959
Stumpfe D, Hu H, Bajorath J (2019) Evolving concept of activity cliffs. ACS Omega 4:14360–14368. https://doi.org/10.1021/acsomega.9b02221
Thomas M, Smith RT, O’Boyle NM et al (2021) Comparison of structure- and ligand-based scoring functions for deep generative models: a GPCR case study. J Cheminformatics 13:39. https://doi.org/10.1186/s13321-021-00516-0
Wang L, Chambers J, Abel R (2019) Biomolecular simulations, methods and protocols. Methods Mol Biol 2022:201–232. https://doi.org/10.1007/978-1-4939-9608-7_9
Yung-Chi C, Prusoff WH (1973) Relationship between the inhibition constant (KI) and the concentration of inhibitor which causes 50 per cent inhibition (IC ) of an enzymatic reaction. Biochem Pharmacol 22:3099–3108. https://doi.org/10.1016/0006-2952(73)90196-2
Proasis. Desert Scientific Software, Sydney, Australia
Landrum G RDKit. https://doi.org/10.5281/zenodo.5589557
Morgan HL (1965) The generation of a unique machine description for chemical structures-a technique developed at chemical abstracts service. J Chem Doc 5:107–113. https://doi.org/10.1021/c160017a018
Pedregosa F, Varoquaux G, Gramfort A et al (2011) Scikit-learn: machine learning in Python. J Mach Learn Res 12:2825–2830
Groom CR, Bruno IJ, Lightfoot MP, Ward SC (2016) The Cambridge Structural database. Acta Crystallogr Sect B Struct Sci Cryst Eng Mater 72:171–179. https://doi.org/10.1107/s2052520616003954
Hawkins PCD, Skillman AG, Warren GL et al (2010) Conformer generation with OMEGA: algorithm and validation using high quality structures from the protein databank and cambridge structural database. J Chem Inf Model 50:572–584. https://doi.org/10.1021/ci100031x
Cruciani G, Milletti F, Storchi L et al (2009) In silico pKa prediction and ADME profiling. Chem Biodivers 6:1812–1821. https://doi.org/10.1002/cbdv.200900153
Virtanen P, Gommers R, Oliphant TE et al (2020) SciPy 1.0: fundamental algorithms for scientific computing in Python. Nat Methods 17:261–272. https://doi.org/10.1038/s41592-019-0686-2
O’Boyle NM, Brewerton SC, Taylor R (2008) Using buriedness to improve discrimination between actives and inactives in docking. J Chem Inf Model 48:1269–1278. https://doi.org/10.1021/ci8000452
Eldridge MD, Murray CW, Auton TR et al (1997) Empirical scoring functions: I. The development of a fast empirical scoring function to estimate the binding affinity of ligands in receptor complexes. J Comput Aid Mol Des 11:425–445. https://doi.org/10.1023/a:1007996124545
Li M, Zhou J, Hu J et al (2021) DGL-lifesci: an open-source toolkit for deep learning on graphs in life science. ACS Omega 6:27233–27238. https://doi.org/10.1021/acsomega.1c04017
Cleves AE, Johnson SR, Jain AN (2021) Synergy and complementarity between focused machine learning and physics-based simulation in affinity prediction. J Chem Inf Model 61:5948–5966. https://doi.org/10.1021/acs.jcim.1c01382
Hunter JD (2007) Matplotlib: a 2D graphics environment. Comput Sci Eng 9:90–95. https://doi.org/10.1109/mcse.2007.55
Waskom ML (2021) Seaborn: statistical data visualization. J Open Source Softw 6:3021. https://doi.org/10.21105/joss.03021
Schrödinger L The PyMOL Molecular Graphics System, Version~1.8
Kabsch W (2010) XDS. Acta Crystallogr Sect D Biol Crystallogr 66:125–132. https://doi.org/10.1107/s0907444909047337
McCoy AJ, Grosse-Kunstleve RW, Adams PD et al (2007) Phaser crystallographic software. J Appl Crystallogr 40:658–674. https://doi.org/10.1107/s0021889807021206
Emsley P, Lohkamp B, Scott WG, Cowtan K (2010) Features and development of coot. Acta Crystallogr Sect D Biol Crystallogr 66:486–501. https://doi.org/10.1107/s0907444910007493
Murshudov GN, Skubák P, Lebedev AA et al (2011) REFMAC5 for the refinement of macromolecular crystal structures. Acta Crystallogr Sect D Biol Crystallogr 67:355–367. https://doi.org/10.1107/s0907444911001314
Acknowledgements
We thank Robin Taylor for valuable feedback and review of the manuscript. Fabian Dey is acknowledged for providing code to align molecules. We also thank Jörg Benz and Catherine Joseph for PDE10A crystallization. Finally, the data set would not exist without the great synthetic efforts of Konrad Bleicher, Luca Gobbi, Katrin Groebke-Zbinden, Matthias Koerner, Christian Lerner, Jens-Uwe Peters, Rosa Maria Rodriguez-Sarmiento, and associated lab members.
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No funding was received for conducting this study.
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AT and BK: designed the study and wrote the manuscript. JC, CK, MiR: provided input to the design of the study and reviewed the manuscript. MaR: determined all crystal structures of the study and reviewed the manuscript. AF: synthesized compounds and supervised the chemistry program. HS and AN: generated and analysed binding data. AT, BK, JC: wrote code used for docking, scoring and data analysis.
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JC works for the Cambridge Crystallographic Data Centre which develops the GOLD docking software.
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Tosstorff, A., Rudolph, M.G., Cole, J.C. et al. A high quality, industrial data set for binding affinity prediction: performance comparison in different early drug discovery scenarios. J Comput Aided Mol Des 36, 753–765 (2022). https://doi.org/10.1007/s10822-022-00478-x
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DOI: https://doi.org/10.1007/s10822-022-00478-x