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Updated: Jun 17, 2026
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Manipulation and Analysis of Cell Cycle-Dependent Processes in Budding Yeast
Published on: September 26, 2025
Control of PCNA deubiquitylation in yeast
Alfonso Gallego-Sánchez1, Francisco Conde, Pedro San Segundo
1Instituto de Biología Molecular y Celular del Cáncer, Campus Miguel de Unamuno, Universidad de Salamanca/CSIC, 37007 Salamanca, Spain.
Biochemical Society Transactions
|January 16, 2010
Summary
Eukaryotes ubiquitylate proliferating-cell nuclear antigen (PCNA) for DNA damage tolerance. This review explores yeast deubiquitylation mechanisms for this crucial DNA repair factor.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- Eukaryotes ubiquitylate proliferating-cell nuclear antigen (PCNA) to enable DNA damage tolerance.
- While PCNA ubiquitylation is well-studied, its deubiquitylation remains poorly understood in most organisms.
Purpose of the Study:
- To review potential molecular mechanisms regulating PCNA deubiquitylation in yeast.
- To highlight the importance of understanding PCNA deubiquitylation in DNA repair.
Main Methods:
- Literature review of existing research on PCNA ubiquitylation and deubiquitylation.
- Analysis of potential deubiquitylation pathways in yeast.
Main Results:
- Discussed potential enzymatic activities and regulatory pathways involved in yeast PCNA deubiquitylation.
- Identified key deubiquitylating enzymes that may target PCNA.
Conclusions:
- PCNA deubiquitylation is a critical, yet understudied, process in yeast DNA repair.
- Further research into these mechanisms is essential for a complete understanding of DNA damage tolerance.
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