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Updated: Oct 22, 2025

In Vitro SUMOylation Assay to Study SUMO E3 Ligase Activity
Published on: January 29, 2018
Minireview: What is Known about SUMOylation Among NR4A Family Members?
Fatéma Dodat1, Sylvie Mader2, Daniel Lévesque3
1Faculté de Pharmacie, Université de Montréal, Montréal, QC, Canada; Institut de Recherche en Immunologie et Cancérologie (IRIC) and Département de biochimie et de médecine moléculaire, Faculté de médecine, Université de Montréal, Montréal, QC, Canada.
Abstract:
NR4A receptors, including NUR77 (NR4A1), NURR1 (NR4A2) and NOR-1 (NR4A3), form a family of nuclear receptors that act as transcription factors to regulate many physiological and pathological processes such as cell cycle and apoptosis, lipid metabolism, inflammation, carcinogenesis, vascular and neuronal functions. In the absence of known endogenous ligand modulating their physiological functions, the NR4A family remains a class of orphan receptors. However, several post-translational modifications (PTMs), including SUMOylation, have been shown to regulate the expression and/or activity of these receptors. Addition of Small Ubiquitin-like MOdifier (SUMO) proteins is a dynamic and reversible enzymatic process that regulates multiple essential functions of proteins, including nuclear receptors. This review aims at summarizing what is known about the impact of SUMOylation on NR4A family member transcriptional activities and physiological functions.
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