Related Experiment Video
Updated: Jun 22, 2026

Determination of S-Phase Duration Using 5-Ethynyl-2'-deoxyuridine Incorporation in Saccharomyces cerevisiae
Published on: October 21, 2022
Assays used to study the DNA replication checkpoint in fission yeast
Eishi Noguchi1, Alison B Ansbach, Chiaki Noguchi
1Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, PA, USA.
Abstract:
The DNA replication checkpoint, also known as the intra-S or S-phase checkpoint, plays a central role in ensuring the accuracy of DNA replication. When replication is impeded by DNA damage or other conditions, this checkpoint delays cell cycle progression and coordinates resumption of replication with DNA repair pathways. One of its critical functions is to stabilize stalled replication forks in a replication-competent state, presumably by maintaining proper assembly of replisome components and preserving DNA structures. Here we describe a series of assays used to study the replication checkpoint. These assays allow us to investigate the specific functions of proteins involved in the replication checkpoint in fission yeast.
Related Concept Videos
The DNA Replication Fork
DNA Damage can Stall the Cell Cycle
DNA Damage Can Stall the Cell Cycle
Restarting Stalled Replication Forks
S-Cdk Initiates DNA Replication
Two states at the origin of replication
In eukaryotes, the initiation of replication occurs at many sites on the chromosomes, called the origins of replication.

