Journal
CELL CHEMICAL BIOLOGY
Volume 28, Issue 12, Pages 1795-+Publisher
CELL PRESS
DOI: 10.1016/j.chembiol.2021.05.018
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Funding
- Israel Science Foundation [2462/19, 3824/19]
- Israel Cancer Research Fund
- Israeli Ministry of Science Technology [3-14763]
- Moross Inte-grated Cancer Center
- Barry Sherman Institute for Medicinal Chemistry
- Helen and Martin Kimmel Center for Molecular Design
- Joel and Mady Dukler Fund for Cancer Research
- Estate of Emile Mimran
- Virgin JustGiving
- George Schwartzman Fund
- Pearlman student-initiated research award
- AbbVie [1097737]
- Bayer Pharma AG
- Boehringer Ingelheim
- Canada Foundation for Innovation
- Eshelman Institute for Innovation
- Genome Canada
- Innovative Medicines Initiative (EU/EFPIA) [ULTRA-DD] [115766]
- Janssen
- Merck KGaA Darmstadt, Germany
- MSD
- Novartis Pharma AG
- Ontario Ministry of Economic Development and Innovation
- Pfizer
- SAo Paulo Research Foundation-FAPESP
- Takeda
- Wellcome [106169/ZZ14/Z]
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The computational pipeline presented in this study identifies irreversible inhibitors that can bind covalently to cysteine, showing promise for drug development in recent prospective evaluations.
Designing covalent inhibitors is increasingly important, although it remains challenging. Here, we present covalentizer, a computational pipeline for identifying irreversible inhibitors based on structures of targets with non-covalent binders. Through covalent docking of tailored focused libraries, we identify candidates that can bind covalently to a nearby cysteine while preserving the interactions of the original molecule. We found similar to 11,000 cysteines proximal to a ligand across 8,386 complexes in the PDB. Of these, the protocol identified 1,553 structures with covalent predictions. In a prospective evaluation, five out of nine predicted covalent kinase inhibitors showed half-maximal inhibitory concentration (IC50) values between 155 nM and 4.5 mu M. Application against an existing SARS-CoV M-pro reversible inhibitor led to an acrylamide inhibitor series with low micromolar IC50 values against SARS-CoV-2 M-pro. The docking was validated by 12 co-crystal structures. Together these examples hint at the vast number of covalent inhibitors accessible through our protocol.
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