Release of Enzymatically Active Deubiquitinating Enzymes Upon Reversible Capture by Disulfide Ubiquitin Reagents
Overview
Affiliations
Deubiquitinating enzymes (DUBs) catalyze the cleavage of ubiquitin from target proteins. Ubiquitin is post-translationally attached to proteins and serves as an important regulatory signal for key cellular processes. In this study, novel activity-based probes to study DUBs were synthesized that comprise a ubiquitin moiety and a novel disulfide warhead at the C-terminus. These reagents can bind DUBs covalently by forming a disulfide bridge between the active-site cysteine residue and the ubiquitin-based probe. As disulfide bridges can be broken by the addition of a reducing agent, these novel ubiquitin reagents can be used to capture and subsequently release catalytically active DUBs, whereas existing capturing agents bind irreversibly. These novel reagents allow for the study of these enzymes in their active state under various conditions.
Fluoroalcohols for chemical modification of biomolecules.
Nuruzzaman M, Nizam Z, Ohata J Tetrahedron Chem. 2024; 11.
PMID: 39239262 PMC: 11376189. DOI: 10.1016/j.tchem.2024.100088.
Pietras Z, Duff A, Morad V, Wood K, Jeffries C, Sunnerhagen M Eur Biophys J. 2022; 51(7-8):569-577.
PMID: 36289080 PMC: 9675693. DOI: 10.1007/s00249-022-01620-1.
Development and application of ubiquitin-based chemical probes.
Sui X, Wang Y, DU Y, Liang L, Zheng Q, Li Y Chem Sci. 2021; 11(47):12633-12646.
PMID: 34123237 PMC: 8163311. DOI: 10.1039/d0sc03295f.
Protein Engineering in the Ubiquitin System: Tools for Discovery and Beyond.
Zhao B, Tsai Y, Jin B, Wang B, Wang Y, Zhou H Pharmacol Rev. 2020; 72(2):380-413.
PMID: 32107274 PMC: 7047443. DOI: 10.1124/pr.118.015651.
Strategies to Target Specific Components of the Ubiquitin Conjugation/Deconjugation Machinery.
Taylor N, McGouran J Front Chem. 2020; 7:914.
PMID: 31998698 PMC: 6966607. DOI: 10.3389/fchem.2019.00914.