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Replication Checkpoint Kinase Cds1 Regulates Recombinational Repair Protein Rad60
Journal article   Open access   Peer reviewed

Replication Checkpoint Kinase Cds1 Regulates Recombinational Repair Protein Rad60

Michael N Boddy, Paul Shanahan, W Hayes McDonald, Antonia Lopez-Girona, Eishi Noguchi, John R Yates III and Paul Russell
Molecular and cellular biology, v 23(16), pp 5939-5946
Aug 2003
PMID: 12897162
url
https://doi.org/10.1128/MCB.23.16.5939-5946.2003View
Published, Version of Record (VoR) Open

Abstract

DNA Dynamics and Chromosome Structure
Genome integrity is protected by Cds1 (Chk2), a checkpoint kinase that stabilizes arrested replication forks. How Cds1 accomplishes this task is unknown. We report that Cds1 interacts with Rad60, a protein required for recombinational repair in fission yeast. Cds1 activation triggers Rad60 phosphorylation and nuclear delocalization. A Rad60 mutant that inhibits regulation by Cds1 renders cells specifically sensitive to replication fork arrest. Genetic and biochemical studies indicate that Rad60 functions codependently with Smc5 and Smc6, subunits of an SMC (structural maintenance of chromosomes) complex required for recombinational repair. These studies indicate that regulation of Rad60 is an important part of the replication checkpoint response controlled by Cds1. We propose that control of Rad60 regulates recombination events at stalled forks.

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Web of Science research areas
Biochemistry & Molecular Biology
Cell Biology
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