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Ubiquitin-chains dynamics and its role regulating crucial cellular processes
Maria Gonzalez-Santamarta1, Corentin Bouvier1, Manuel S Rodriguez1
1Laboratoire de Chimie de Coordination (LCC) - UPR 8241 CNRS, and UMR 152 Pharma-Dev, Université de Toulouse, IRD, UPS, 31400 Toulouse, France.
Seminars in Cell & Developmental Biology
|December 13, 2021
Summary
Ubiquitin (Ub) and Ubiquitin-like (UbL) proteins dynamically remodel protein architecture through chain formation. Enzymes regulate these posttranslational modifications (PTMs) for cellular functions like DNA repair and autophagy.
Area of Science:
- Cellular Biology
- Molecular Biology
- Biochemistry
Background:
- The cellular proteome constantly adapts to changing conditions.
- Posttranslational modifications (PTMs) are crucial for regulating protein function, localization, and stability.
- Ubiquitin (Ub) and Ubiquitin-like (UbL) proteins are key players in dynamic protein regulation.
Purpose of the Study:
- To highlight the dynamic nature of Ubiquitin and UbL protein modifications.
- To explain the role of Ub chain architecture in cellular processes.
- To discuss the enzymes and cofactors involved in Ub chain remodeling.
Main Methods:
- Review of existing literature on Ubiquitin and UbL protein dynamics.
- Analysis of specific cellular pathways involving Ub chain remodeling.
- Discussion of enzymatic regulation of Ub chain formation and degradation.
Main Results:
- Ubiquitin and UbL proteins rapidly alter protein structure and function.
- The formation and remodeling of Ub chains are critical for cellular signaling and homeostasis.
- Specific examples illustrate chain remodeling in DNA repair, NF-κB pathway activation, and autophagy.
Conclusions:
- Ub chain remodeling is a highly dynamic and essential regulatory mechanism in cells.
- Enzymes and cofactors play a critical role in orchestrating Ub chain architecture for specific cellular functions.
- Understanding Ub chain remodeling is vital for comprehending both physiological and pathological cellular processes.
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