Nuclear pore complex acetylation regulates mRNA export and cell cycle commitment in budding yeast
Abstract: Nuclear pore complexes (NPCs) mediate communication between the nucleus and the cytoplasm, and regulate gene expression by interacting with transcription and mRNA export factors. Lysine acetyltransferases (KATs) promote transcription through acetylation of chromatin‐associated proteins. We find that Esa1, the KAT subunit of the yeast NuA4 complex, also acetylates the nuclear pore basket component Nup60 to promote mRNA export. Acetylation of Nup60 recruits the mRNA export factor Sac3, the scaffolding subunit of the Transcription and Export 2 (TREX‐2) complex, to the nuclear basket. The Esa1‐mediated nuclear export of mRNAs in turn promotes entry into S phase, which is inhibited by the Hos3 deacetylase in G1 daughter cells to restrain their premature commitment to a new cell division cycle. This mechanism is not only limited to G1/S‐expressed genes but also inhibits the expression of the nutrient‐regulated GAL1 gene specifically in daughter cells. Overall, these results reveal how acetylation can contribute to the functional plasticity of NPCs in mother and daughter yeast cells. In addition, our work demonstrates dual gene expression regulation by the evolutionarily conserved NuA4 complex, at the level of transcription and at the stage of mRNA export by modifying the nucleoplasmic entrance to nuclear pores.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Nuclear pore complex acetylation regulates mRNA export and cell cycle commitment in budding yeast ; day:23 ; month:06 ; year:2022 ; extent:24
The EMBO journal / European Molecular Biology Organization ; (23.06.2022) (gesamt 24)
- Creator
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Gomar‐Alba, Mercè
Pozharskaia, Vasilisa
Cichocki, Bogdan
Schaal, Celia
Kumar, Arun
Jacquel, Basile
Charvin, Gilles
Igual, J. Carlos
Mendoza, Manuel
- DOI
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10.15252/embj.2021110271
- URN
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urn:nbn:de:101:1-2022062315210050369505
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:28 AM CEST
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Associated
- Gomar‐Alba, Mercè
- Pozharskaia, Vasilisa
- Cichocki, Bogdan
- Schaal, Celia
- Kumar, Arun
- Jacquel, Basile
- Charvin, Gilles
- Igual, J. Carlos
- Mendoza, Manuel
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