Enantioselective OTUD7B fragment discovery through chemoproteomics screening and high-throughput optimisation

Abstract Deubiquitinating enzymes (DUBs) are key regulators of cellular homoeostasis, and their dysregulation is associated with several human diseases. The ovarian tumour protease (OTU) family of DUBs are biochemically well-characterised and of therapeutic interest, yet only a few tool compounds ex...

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Main Authors: Aini Vuorinen, Cassandra R. Kennedy, Katherine A. McPhie, William McCarthy, Jonathan Pettinger, J. Mark Skehel, David House, Jacob T. Bush, Katrin Rittinger
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Communications Chemistry
Online Access:https://doi.org/10.1038/s42004-025-01410-8
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author Aini Vuorinen
Cassandra R. Kennedy
Katherine A. McPhie
William McCarthy
Jonathan Pettinger
J. Mark Skehel
David House
Jacob T. Bush
Katrin Rittinger
author_facet Aini Vuorinen
Cassandra R. Kennedy
Katherine A. McPhie
William McCarthy
Jonathan Pettinger
J. Mark Skehel
David House
Jacob T. Bush
Katrin Rittinger
author_sort Aini Vuorinen
collection DOAJ
description Abstract Deubiquitinating enzymes (DUBs) are key regulators of cellular homoeostasis, and their dysregulation is associated with several human diseases. The ovarian tumour protease (OTU) family of DUBs are biochemically well-characterised and of therapeutic interest, yet only a few tool compounds exist to study their cellular function and therapeutic potential. Here we present a chemoproteomics fragment screening platform for identifying novel DUB-specific hit matter, that combines activity-based protein profiling with high-throughput chemistry direct-to-biology optimisation to enable rapid elaboration of initial fragment hits against OTU DUBs. Applying these approaches, we identify an enantioselective covalent fragment for OTUD7B, and validate it using chemoproteomics and biochemical DUB activity assays.
format Article
id doaj-art-139954714e30474fb73ffa5a4e8f6ab1
institution Kabale University
issn 2399-3669
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publishDate 2025-01-01
publisher Nature Portfolio
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series Communications Chemistry
spelling doaj-art-139954714e30474fb73ffa5a4e8f6ab12025-01-19T12:13:09ZengNature PortfolioCommunications Chemistry2399-36692025-01-018111210.1038/s42004-025-01410-8Enantioselective OTUD7B fragment discovery through chemoproteomics screening and high-throughput optimisationAini Vuorinen0Cassandra R. Kennedy1Katherine A. McPhie2William McCarthy3Jonathan Pettinger4J. Mark Skehel5David House6Jacob T. Bush7Katrin Rittinger8Proteomics Science Technology Platform, The Francis Crick InstituteMolecular Structure of Cell Signalling Laboratory, The Francis Crick InstituteMolecular Structure of Cell Signalling Laboratory, The Francis Crick InstituteMolecular Structure of Cell Signalling Laboratory, The Francis Crick InstituteCrick-GSK Biomedical LinkLabs, GSK, StevenageProteomics Science Technology Platform, The Francis Crick InstituteCrick-GSK Biomedical LinkLabs, GSK, StevenageCrick-GSK Biomedical LinkLabs, GSK, StevenageMolecular Structure of Cell Signalling Laboratory, The Francis Crick InstituteAbstract Deubiquitinating enzymes (DUBs) are key regulators of cellular homoeostasis, and their dysregulation is associated with several human diseases. The ovarian tumour protease (OTU) family of DUBs are biochemically well-characterised and of therapeutic interest, yet only a few tool compounds exist to study their cellular function and therapeutic potential. Here we present a chemoproteomics fragment screening platform for identifying novel DUB-specific hit matter, that combines activity-based protein profiling with high-throughput chemistry direct-to-biology optimisation to enable rapid elaboration of initial fragment hits against OTU DUBs. Applying these approaches, we identify an enantioselective covalent fragment for OTUD7B, and validate it using chemoproteomics and biochemical DUB activity assays.https://doi.org/10.1038/s42004-025-01410-8
spellingShingle Aini Vuorinen
Cassandra R. Kennedy
Katherine A. McPhie
William McCarthy
Jonathan Pettinger
J. Mark Skehel
David House
Jacob T. Bush
Katrin Rittinger
Enantioselective OTUD7B fragment discovery through chemoproteomics screening and high-throughput optimisation
Communications Chemistry
title Enantioselective OTUD7B fragment discovery through chemoproteomics screening and high-throughput optimisation
title_full Enantioselective OTUD7B fragment discovery through chemoproteomics screening and high-throughput optimisation
title_fullStr Enantioselective OTUD7B fragment discovery through chemoproteomics screening and high-throughput optimisation
title_full_unstemmed Enantioselective OTUD7B fragment discovery through chemoproteomics screening and high-throughput optimisation
title_short Enantioselective OTUD7B fragment discovery through chemoproteomics screening and high-throughput optimisation
title_sort enantioselective otud7b fragment discovery through chemoproteomics screening and high throughput optimisation
url https://doi.org/10.1038/s42004-025-01410-8
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