Canonical nucleosome organization at promoters forms during genome activation

Zhang, Yong and Vastenhouw, Nadine L. and Feng, Jianxing and Fu, Kai and Wang, Chenfei and Ge, Ying and Pauli, Andrea and van Hummelen, Paul and Schier, Alexander F. and Liu, X. Shirley. (2014) Canonical nucleosome organization at promoters forms during genome activation. Genome Research, 24 (2). pp. 260-266.

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Official URL: https://edoc.unibas.ch/74693/

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The organization of nucleosomes influences transcriptional activity by controlling accessibility of DNA binding proteins to the genome. Genome-wide nucleosome binding profiles have identified a canonical nucleosome organization at gene promoters, where arrays of well-positioned nucleosomes emanate from nucleosome-depleted regions. The mechanisms of formation and the function of canonical promoter nucleosome organization remain unclear. Here we analyze the genome-wide location of nucleosomes during zebrafish embryogenesis and show that well-positioned nucleosome arrays appear on thousands of promoters during the activation of the zygotic genome. The formation of canonical promoter nucleosome organization is independent of DNA sequence preference, transcriptional elongation, and robust RNA polymerase II (Pol II) binding. Instead, canonical promoter nucleosome organization correlates with the presence of histone H3 lysine 4 trimethylation (H3K4me3) and affects future transcriptional activation. These findings reveal that genome activation is central to the organization of nucleosome arrays during early embryogenesis.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Growth & Development > Cell and Developmental Biology (Schier)
UniBasel Contributors:Schier, Alexander F
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Cold Spring Harbor Laboratory Press
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:16 Dec 2020 17:06
Deposited On:16 Dec 2020 17:06

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