ArticleMolecular and cellular biology2011
Psm3 acetylation on conserved lysine residues is dispensable for viability in fission yeast but contributes to Eso1-mediated sister chromatid cohesion by antagonizing Wpl1.
Article in Molecular and cellular biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
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40 citing papers in PubMed, 64 citations in OpenAlex.
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- Single amino acid substitutions in hydrophobic cores at a head-coiled coil junction region of cohesin facilitate its release of DNA during anaphase.Open biology · 2022Article
- RNA-binding protein Mub1 and the nuclear RNA exosome act to fine-tune environmental stress response.Life science alliance · 2022Article
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- Towards a Structural Mechanism for Sister Chromatid Cohesion Establishment at the Eukaryotic Replication Fork.Biology · 2021Review
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- The acetyltransferase Eco1 elicits cohesin dimerization during S phase.The Journal of biological chemistry · 2020Article
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- Pds5A and Pds5B Display Non-redundant Functions in Mitosis and Their Loss Triggers Chk1 Activation.Frontiers in cell and developmental biology · 2020Article
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- The replicative helicase MCM recruits cohesin acetyltransferase ESCO2 to mediate centromeric sister chromatid cohesion.The EMBO journal · 2018Article
- Mutations that prevent methylation of cohesin render sensitivity to DNA damage inJournal of cell science · 2018Article
- Whole-Genome Sequencing of Suppressor DNA Mixtures Identifies Pathways That Compensate for Chromosome Segregation Defects inG3 (Bethesda, Md.) · 2018Article
- Genes Important forGenetics · 2018Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In budding yeast and humans, cohesion establishment during S phase requires the acetyltransferase Eco1/Esco1-2, which acetylates the cohesin subunit Smc3 on two conserved lysine residues. Whether Smc3 is the sole Eco1/Esco1-2 effector and how Smc3 acetylation promotes cohesion are unknown. In fission yeast (Schizosaccharomyces pombe), as in humans, cohesin binding to G(1) chromosomes is dynamic and the unloading reaction is stimulated by Wpl1 (human ortholog, Wapl). During S phase, a subpopulation of cohesin becomes stably bound to chromatin in an Eso1 (fission yeast Eco1/Esco1-2)-dependent manner. Cohesin stabilization occurs unevenly along chromosomes. Cohesin remains largely labile at the rDNA repeats but binds mostly in the stable mode to pericentromere regions. This pattern is largely unchanged in eso1Δ wpl1Δ cells, and cohesion is unaffected, indicating that the main Eso1 role is counteracting Wpl1. A mutant of Psm3 (fission yeast Smc3) that mimics its acetylated state renders cohesin less sensitive to Wpl1-dependent unloading and partially bypasses the Eso1 requirement but cannot generate the stable mode of cohesin binding in the absence of Eso1. Conversely, nonacetylatable Psm3 reduces the stable cohesin fraction and affects cohesion in a Wpl1-dependent manner, but cells are viable. We propose that Psm3 acetylation contributes to Eso1 counteracting of Wpl1 to secure stable cohesin interaction with postreplicative chromosomes but that it is not the sole molecular event by which this occurs.
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