Cited by 349Click Chemistry and ApplicationsChemical Synthesis and AnalysisComputational Drug Discovery Methods

Rapid Covalent-Probe Discovery by Electrophile-Fragment Screening

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Resnick, Efrat, Bradley, Anthony, Gan, Jinrui, Douangamath, Alice, Krojer, Tobias, Sethi, Ritika, Geurink, Paul P., Aimon, Anthony +26 more·2019·Journal of the American Chemical Society

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Abstract

Covalent probes can display unmatched potency, selectivity, and duration of action; however, their discovery is challenging. In principle, fragments that can irreversibly bind their target can overcome the low affinity that limits reversible fragment screening, but such electrophilic fragments were considered nonselective and were rarely screened. We hypothesized that mild electrophiles might overcome the selectivity challenge and constructed a library of 993 mildly electrophilic fragments. We characterized this library by a new high-throughput thiol-reactivity assay and screened them against 10 cysteine-containing proteins. Highly reactive and promiscuous fragments were rare and could be easily eliminated. In contrast, we found hits for most targets. Combining our approach with high-throughput crystallography allowed rapid progression to potent and selective probes for two enzymes, the deubiquitinase OTUB2 and the pyrophosphatase NUDT7. No inhibitors were previously known for either. This study highlights the potential of electrophile-fragment screening as a practical and efficient tool for covalent-ligand discovery.

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  • A commercial library of 993 acrylamides and chloroacetamides was screened using intact MS to identify ligands of OTUB2 and NUDT7.

    “More recently, a commercial library of 993 acrylamides and chloroacetamides was screened using intact MS to identify ligands of the deubiquitinase OTUB2 and the pyrophosphatase NUDT7 (ref.156).”

    From Advances in covalent drug discovery (2022) · cites this paper as [156]

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Authors
Resnick, E., Bradley, A., Gan, J., Douangamath, A., Krojer, T., Sethi, R., Geurink, P. P., Aimon, A., Amitai, G., Bellini, D., Bennett, J., Fairhead, M., Fedorov, O., Gabizon, R., Gan, J., Guo, J., Plotnikov, A., Reznik, N., Ruda, G. F., Díaz-Sáez, L., Straub, V. M., Szommer, T., Velupillai, S., Zaidman, D., Zhang, Y., Coker, A. R., Dowson, C. G., Barr, H. M., Wang, C., Huber, K. V. M., Brennan, P. E., Ovaa, H., von Delft, F., & London, N.
Affiliations
  • Weizmann Institute of Science (IL)
  • Diamond Light Source (GB)
  • Leiden University Medical Center (NL)
  • University of Oxford (GB)
  • Vrije Universiteit Brussel (BE)
  • University of Warwick (GB)
  • University College London (GB)
  • University of Oxford , , , ,
  • Peking University (CN)
Corresponding author
London, Nir
Venue
Journal of the American Chemical Society
Published
2019-05-07
Volume
141
Issue
22
Pages
8951-8968
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2949252818
Cited by
335
References
100
Citations by year
2026: 40 · 2025: 39 · 2024: 51 · 2023: 58 · 2022: 45 · 2021: 50 · 2020: 42 · 2019: 8 · 2018: 2
FWCI
14.60
Type
journal article
Language
en
Open access
Locations
  • Journal of the American Chemical Society (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Warwick Research Archive Portal (University of Warwick) (acceptedVersion)
  • Leiden Repository (Leiden University) (submittedVersion, cc-by)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, cc-by)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, cc-by)
Funders
  • Israel Cancer Research Fund (NA)
  • Wellcome Trust (106169/Z/14/Z)
  • Ontario Genomics Institute (OGI-055)
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek (724.013.002)
  • Israel Science Foundation (1097/16)
  • Ministry of Science and Technology, Israel (3-14763)
  • Innovative Medicines Initiative (115766, NA)
  • Rising Tide Foundation (NA)
Topics
  • Physical Sciences › Chemistry › Organic Chemistry › Click Chemistry and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
Keywords
covalent probes, fragment-based drug discovery, cysteine-containing proteins, OTUB2, NUDT7, deubiquitinase inhibitors, high-throughput crystallography
MeSH terms
Drug Evaluation, Preclinical, Electrons, Humans, Ligands, Models, Molecular, Molecular Weight, Protein Conformation, Time Factors, HEK293 Cells

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