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Inactivation of the budding yeast cohesin loader Scc2 alters gene expression both globally and in response to a single DNA double strand break
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Molecular epidemiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
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2014 (English)In: Cell Cycle, ISSN 1538-4101, E-ISSN 1551-4005, Vol. 13, no 23, 3645-3658 p.Article in journal (Refereed) Published
Abstract [en]

Genome integrity is fundamental for cell survival and cell cycle progression. Important mechanisms for keeping the genome intact are proper sister chromatid segregation, correct gene regulation and efficient repair of damaged DNA. Cohesin and its DNA loader, the Scc2/4 complex have been implicated in all these cellular actions. The gene regulation role has been described in several organisms. In yeast it has been suggested that the proteins in the cohesin network would effect transcription based on its role as insulator. More recently, data are emerging indicating direct roles for gene regulation also in yeast. Here we extend these studies by investigating whether the cohesin loader Scc2 is involved in regulation of gene expression. We performed global gene expression profiling in the absence and presence of DNA damage, in wild type and Scc2 deficient G2/M arrested cells, when it is known that Scc2 is important for DNA double strand break repair and formation of damage induced cohesion. We found that not only the DNA damage specific transcriptional response is distorted after inactivation of Scc2 but also the overall transcription profile. Interestingly, these alterations did not correlate with changes in cohesin binding.

Place, publisher, year, edition, pages
2014. Vol. 13, no 23, 3645-3658 p.
Keyword [en]
cohesin network, DNA double strand break, microarray, Scc2, transcription profile
National Category
Cell and Molecular Biology
Identifiers
URN: urn:nbn:se:uu:diva-246681DOI: 10.4161/15384101.2014.964108ISI: 000348329200009PubMedID: 25483075OAI: oai:DiVA.org:uu-246681DiVA: diva2:796059
Available from: 2015-03-18 Created: 2015-03-09 Last updated: 2017-12-04Bibliographically approved

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