A microscale thermophoresis-based enzymatic RNA methyltransferase assay enables the discovery of DNMT2 inhibitors

Abstract RNA methyltransferases (MTases) have recently become increasingly important in drug discovery. Yet, most frequently utilized RNA MTase assays are limited in their throughput and hamper this rapidly evolving field of medicinal chemistry. This study developed a microscale thermophoresis (MST)...

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Main Authors: Zarina Nidoieva, Mark O. Sabin, Tristan Dewald, Annabelle C. Weldert, Sabrina N. Hoba, Mark Helm, Fabian Barthels
Format: Article
Language:English
Published: Nature Portfolio 2025-02-01
Series:Communications Chemistry
Online Access:https://doi.org/10.1038/s42004-025-01439-9
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author Zarina Nidoieva
Mark O. Sabin
Tristan Dewald
Annabelle C. Weldert
Sabrina N. Hoba
Mark Helm
Fabian Barthels
author_facet Zarina Nidoieva
Mark O. Sabin
Tristan Dewald
Annabelle C. Weldert
Sabrina N. Hoba
Mark Helm
Fabian Barthels
author_sort Zarina Nidoieva
collection DOAJ
description Abstract RNA methyltransferases (MTases) have recently become increasingly important in drug discovery. Yet, most frequently utilized RNA MTase assays are limited in their throughput and hamper this rapidly evolving field of medicinal chemistry. This study developed a microscale thermophoresis (MST)-based split aptamer assay for enzymatic MTase investigations, improving current methodologies by offering a non-proprietary, cost-effective, and highly sensitive approach. Our findings demonstrate the assay’s effectiveness across different RNA MTases, including inhibitor characterization of METTL3/14, DNMT2, NSUN2, and S. aureus TrmD, enabling future drug discovery efforts. Using this concept, a pilot screening on the cancer drug target DNMT2 discovered several hit compounds with micromolar potency.
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institution Kabale University
issn 2399-3669
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publisher Nature Portfolio
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spelling doaj-art-b6dd457ca88a4048ab090e6f7b3b90e72025-02-09T12:16:23ZengNature PortfolioCommunications Chemistry2399-36692025-02-01811910.1038/s42004-025-01439-9A microscale thermophoresis-based enzymatic RNA methyltransferase assay enables the discovery of DNMT2 inhibitorsZarina Nidoieva0Mark O. Sabin1Tristan Dewald2Annabelle C. Weldert3Sabrina N. Hoba4Mark Helm5Fabian Barthels6Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg-UniversityInstitute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg-UniversityInstitute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg-UniversityInstitute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg-UniversityInstitute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg-UniversityInstitute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg-UniversityInstitute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg-UniversityAbstract RNA methyltransferases (MTases) have recently become increasingly important in drug discovery. Yet, most frequently utilized RNA MTase assays are limited in their throughput and hamper this rapidly evolving field of medicinal chemistry. This study developed a microscale thermophoresis (MST)-based split aptamer assay for enzymatic MTase investigations, improving current methodologies by offering a non-proprietary, cost-effective, and highly sensitive approach. Our findings demonstrate the assay’s effectiveness across different RNA MTases, including inhibitor characterization of METTL3/14, DNMT2, NSUN2, and S. aureus TrmD, enabling future drug discovery efforts. Using this concept, a pilot screening on the cancer drug target DNMT2 discovered several hit compounds with micromolar potency.https://doi.org/10.1038/s42004-025-01439-9
spellingShingle Zarina Nidoieva
Mark O. Sabin
Tristan Dewald
Annabelle C. Weldert
Sabrina N. Hoba
Mark Helm
Fabian Barthels
A microscale thermophoresis-based enzymatic RNA methyltransferase assay enables the discovery of DNMT2 inhibitors
Communications Chemistry
title A microscale thermophoresis-based enzymatic RNA methyltransferase assay enables the discovery of DNMT2 inhibitors
title_full A microscale thermophoresis-based enzymatic RNA methyltransferase assay enables the discovery of DNMT2 inhibitors
title_fullStr A microscale thermophoresis-based enzymatic RNA methyltransferase assay enables the discovery of DNMT2 inhibitors
title_full_unstemmed A microscale thermophoresis-based enzymatic RNA methyltransferase assay enables the discovery of DNMT2 inhibitors
title_short A microscale thermophoresis-based enzymatic RNA methyltransferase assay enables the discovery of DNMT2 inhibitors
title_sort microscale thermophoresis based enzymatic rna methyltransferase assay enables the discovery of dnmt2 inhibitors
url https://doi.org/10.1038/s42004-025-01439-9
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