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Title: Discovery of Potent and Selective Allosteric Inhibitors of Protein Arginine Methyltransferase 3 (PRMT3)

Journal Article · · Journal of Medicinal Chemistry

PRMT3 catalyzes the asymmetric dimethylation of arginine residues of various proteins. It is crucial for maturation of ribosomes and has been implicated in several diseases. We recently disclosed a highly potent, selective, and cell-active allosteric inhibitor of PRMT3, compound 4. Here, we report comprehensive structure–activity relationship studies that target the allosteric binding site of PRMT3. We conducted design, synthesis, and evaluation of novel compounds in biochemical, selectivity, and cellular assays that culminated in the discovery of 4 and other highly potent (IC50 values: ~10–36 nM), selective, and cell-active allosteric inhibitors of PRMT3 (compounds 29, 30, 36, and 37). In addition, we generated compounds that are very close analogs of these potent inhibitors but displayed drastically reduced potency as negative controls (compounds 49–51). These inhibitors and negative controls are valuable chemical tools for the biomedical community to further investigate biological functions and disease associations of PRMT3.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
National Institutes of Health (NIH); National Natural Science Foundation of China (NNSFC); USDOE
OSTI ID:
1570752
Journal Information:
Journal of Medicinal Chemistry, Journal Name: Journal of Medicinal Chemistry Journal Issue: 3 Vol. 61; ISSN 0022-2623
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH

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Proteomic Dissection of the von Hippel–Lindau (VHL) Interactome journal November 2011
PRMT3 is a ribosomal protein methyltransferase that affects the cellular levels of ribosomal subunits journal June 2004
DAL-1/4.1B tumor suppressor interacts with protein arginine N-methyltransferase 3 (PRMT3) and inhibits its ability to methylate substrates in vitro and in vivo journal August 2004
Ribosomal protein S2 is a substrate for mammalian PRMT3 (protein arginine methyltransferase 3) journal February 2005
(R)-PFI-2 is a potent and selective inhibitor of SETD7 methyltransferase activity in cells journal August 2014
PRMT 3, a Type I Protein Arginine N-Methyltransferase That Differs from PRMT1 in Its Oligomerization, Subcellular Localization, Substrate Specificity, and Regulation journal July 1998
Trimethylation of Histone H3 Lysine 36 by Human Methyltransferase PRDM9 Protein journal March 2014
Ribosomal Protein rpS2 Is Hypomethylated in PRMT3-deficient Mice journal June 2007
Promiscuous Modification of the Nuclear Poly(A)-binding Protein by Multiple Protein-arginine Methyltransferases Does Not Affect the Aggregation Behavior journal July 2008
Human protein arginine methyltransferases in vivo - distinct properties of eight canonical members of the PRMT family journal February 2009
Exploiting an Allosteric Binding Site of PRMT3 Yields Potent and Selective Inhibitors text January 2013
PRMT3 Regulates Hepatic Lipogenesis Through Direct Interaction With LXRα journal September 2014
A Potent, Selective and Cell-Active Allosteric Inhibitor of Protein Arginine Methyltransferase 3 (PRMT3) journal February 2015
Über aromatische Fluorverbindungen, I.: Ein neues Verfahren zu ihrer Darstellung journal May 1927
Expression of nitric oxide related enzymes in coronary heart disease journal May 2006
Kinetic characterization of human histone H3 lysine 36 methyltransferases, ASH1L and SETD2 journal September 2015
Isoquinoline–pyridine-based protein kinase B/Akt antagonists: SAR and in vivo antitumor activity journal June 2006
PRMT3 is essential for dendritic spine maturation in rat hippocampal neurons journal September 2010
New role of irisin in hepatocytes: The protective effect of hepatic steatosis in vitro journal September 2015
Protein Arginine Methylation in Mammals: Who, What, and Why journal January 2009
An Allosteric Inhibitor of Protein Arginine Methyltransferase 3 journal August 2012
Activity-Based Protein Profiling of Protein Arginine Methyltransferase 1 journal August 2011
Exploiting an Allosteric Binding Site of PRMT3 Yields Potent and Selective Inhibitors journal February 2013
Proteomic Dissection of the von Hippel–Lindau (VHL) Interactome journal November 2011
PRMT3 is a ribosomal protein methyltransferase that affects the cellular levels of ribosomal subunits journal June 2004
DAL-1/4.1B tumor suppressor interacts with protein arginine N-methyltransferase 3 (PRMT3) and inhibits its ability to methylate substrates in vitro and in vivo journal August 2004
Ribosomal protein S2 is a substrate for mammalian PRMT3 (protein arginine methyltransferase 3) journal February 2005
(R)-PFI-2 is a potent and selective inhibitor of SETD7 methyltransferase activity in cells journal August 2014
PRMT 3, a Type I Protein Arginine N-Methyltransferase That Differs from PRMT1 in Its Oligomerization, Subcellular Localization, Substrate Specificity, and Regulation journal July 1998
Trimethylation of Histone H3 Lysine 36 by Human Methyltransferase PRDM9 Protein journal March 2014
SET-mediated Promoter Hypoacetylation Is a Prerequisite for Coactivation of the Estrogen-responsive pS2 Gene by PRMT1 journal September 2006
Ribosomal Protein rpS2 Is Hypomethylated in PRMT3-deficient Mice journal June 2007
Promiscuous Modification of the Nuclear Poly(A)-binding Protein by Multiple Protein-arginine Methyltransferases Does Not Affect the Aggregation Behavior journal July 2008
Human PDCD2L Is an Export Substrate of CRM1 That Associates with 40S Ribosomal Subunit Precursors journal December 2016
Fluorescence-Based Methods for Screening Writers and Readers of Histone Methyl Marks journal October 2011
Human protein arginine methyltransferases in vivo - distinct properties of eight canonical members of the PRMT family journal February 2009
Hsp70 Chaperones and Type I PRMTs Are Sequestered at Intranuclear Inclusions Caused by Polyalanine Expansions in PABPN1 journal July 2009
PRMT3 Regulates Hepatic Lipogenesis Through Direct Interaction With LXRα journal September 2014

Cited By (7)

The Methylation Status of the Epigenome: Its Emerging Role in the Regulation of Tumor Angiogenesis and Tumor Growth, and Potential for Drug Targeting journal August 2018
Methyltransferase Inhibitors: Competing with, or Exploiting the Bound Cofactor journal December 2019
Colon cancer stemness as a reversible epigenetic state: Implications for anticancer therapies journal November 2019
Protein arginine methyltransferases: insights into the enzyme structure and mechanism at the atomic level journal May 2019
Targeting protein methylation: from chemical tools to precision medicines journal May 2019
The Methylation Status of the Epigenome: Its Emerging Role in the Regulation of Tumor Angiogenesis and Tumor Growth, and Potential for Drug Targeting journal August 2018
Methyltransferase Inhibitors: Competing with, or Exploiting the Bound Cofactor journal December 2019