Megadalton chromatin remodelers: common principles for versatile functions
ATP-dependent chromatin remodelers are enigmatic macromolecular machines that govern the arrangement and composition of nucleosomes across eukaryotic genomes. Here, we review the recent breakthrough provided by cryo-electron microscopy that reveal the first high-resolution insights into all four fam...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
6 August 2020
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| In: |
Current opinion in structural biology
Year: 2020, Jahrgang: 64, Pages: 134-144 |
| DOI: | 10.1016/j.sbi.2020.06.024 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.sbi.2020.06.024 Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0959440X20301238 
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| Verfasserangaben: | Anna Jungblut, Karl-Peter Hopfner and Sebastian Eustermann |
| Zusammenfassung: | ATP-dependent chromatin remodelers are enigmatic macromolecular machines that govern the arrangement and composition of nucleosomes across eukaryotic genomes. Here, we review the recent breakthrough provided by cryo-electron microscopy that reveal the first high-resolution insights into all four families of remodelers. We highlight the emerging structural and mechanistic principles with a particular focus on multi-subunit SWI/SNF and INO80/SWR1 complexes. A conserved architecture comprising a motor, rotor, stator and grip suggests a unifying mechanism for how stepwise DNA translocation enables large scale reconfigurations of nucleosomes. A molecular circuitry involving the nuclear actin containing module establishes a framework for understanding allosteric regulation. Remodelers emerge as programable hubs that enable differential processing of genetic and epigenetic information in response to the physiological state of a cell. |
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| Beschreibung: | Gesehen am 27.11.2020 |
| Beschreibung: | Online Resource |
| DOI: | 10.1016/j.sbi.2020.06.024 |