Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 63, Issue 10, Pages 5477-5487Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.0c00406
Keywords
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Funding
- U.S. National Institutes of Health [R01GM122749]
- AbbVie [1097737]
- Bayer Pharma AG [1097737]
- Boehringer Ingelheim [1097737]
- Canada Foundation for Innovation [1097737]
- Eshelman Institute for Innovation [1097737]
- Genome Canada through Ontario Genomics Institute [1097737, OGI-055]
- Innovative Medicines Initiative (EU/EFPIA) [ULTRA-DD grant] [1097737, 115766]
- Janssen [1097737]
- Merck KGaA, Darmstadt, Germany [1097737]
- MSD [1097737]
- Novartis Pharma AG [1097737]
- Ontario Ministry of Research, Innovation and Science (MRIS) [1097737]
- Pfizer [1097737]
- Sao Paulo Research Foundation-FAPESP [1097737]
- Takeda [1097737]
- Wellcome [1097737, 106169/ZZ14/Z]
Ask authors/readers for more resources
Protein arginine methyltransferase 6 (PRMT6) plays important roles in several biological processes associated with multiple cancers. Well-characterized potent, selective, and cell-active PRMT6 inhibitors are invaluable tools for testing biological and therapeutic hypotheses. Although there are several known reversible PRMT6 inhibitors, covalent PRMT6 inhibitors have not been reported. Based on a cocrystal structure of PRMT6-MS023 (a type I PRMT inhibitor), we discovered the first potent and cell-active irreversible PRMT6 inhibitor, 4 (MSI17). The covalent binding mode of compound 4 to PRMT6 was confirmed by mass spectrometry and kinetic studies and by a cocrystal structure. Compound 4 did not covalently modify other closely related PRMTs, potently inhibited PRMT6 in cells, and was selective for PRMT6 over other methyltransferases. We also developed two structurally similar control compounds, 5 (MS167) and 7 (MS168). We provide these valuable chemical tools to the scientific community for further studying PRMT6 physiological and pathophysiological functions.
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