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Characterization of the nuclear import of the human CHD4–NuRD complex
Hoffmeister, Helen, Holzinger, Simon
, Dürr, Marie-Sofie, Bruckmann, Astrid, Schindler, Susann G., Gröbner-Ferreira, Regina, Depping, Reinhard und Längst, Gernot
(2023)
Characterization of the nuclear import of the human CHD4–NuRD complex.
Journal of Cell Science 136 (7).
Veröffentlichungsdatum dieses Volltextes: 19 Jan 2024 13:52
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.55371
Zusammenfassung
Chromatin remodeling enzymes form large multiprotein complexes that play central roles in regulating access to the genome. Here, we characterize the nuclear import of the human CHD4 protein. We show that CHD4 enters the nucleus by means of several importin-alpha proteins (1, 5, 6 and 7), but independently of importin beta 1. Importin alpha 1 directly interacts with a monopartite 'KRKR'-motif in ...
Chromatin remodeling enzymes form large multiprotein complexes that play central roles in regulating access to the genome. Here, we characterize the nuclear import of the human CHD4 protein. We show that CHD4 enters the nucleus by means of several importin-alpha proteins (1, 5, 6 and 7), but independently of importin beta 1. Importin alpha 1 directly interacts with a monopartite 'KRKR'-motif in the N-terminus of CHD4 (amino acids 304-307). However, alanine mutagenesis of this motif only leads to an similar to 50% reduction in nuclear localization of CHD4, implying that there are additional import mechanisms. Interestingly, we could show that CHD4 was already associated with the nucleosome remodeling deacetylase (NuRD) core subunits, such as MTA2, HDAC1 and RbAp46 (also known as RBBP7), in the cytoplasm, suggesting an assembly of the NuRD core complex before nuclear import. We propose that, in addition to the importin-alpha-dependent nuclear localization signal, CHD4 is dragged into the nucleus by a 'piggyback' mechanism using the import signals of the associated NuRD subunits.
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| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | Journal of Cell Science | ||||
| Verlag: | COMPANY BIOLOGISTS LTD | ||||
|---|---|---|---|---|---|
| Ort der Veröffentlichung: | CAMBRIDGE | ||||
| Band: | 136 | ||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 7 | ||||
| Datum | 6 April 2023 | ||||
| Institutionen | Biologie und Vorklinische Medizin > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Biochemie I > Prof. Dr. Gunter Meister Biologie und Vorklinische Medizin > Institut für Biochemie, Genetik und Mikrobiologie > Lehrstuhl für Biochemie III > Prof. Dr. Gernot Längst | ||||
| Identifikationsnummer |
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| Stichwörter / Keywords | HUMAN PROTEIN ATLAS; LOCALIZATION SIGNAL; DEACETYLASE COMPLEX; BINDING; IDENTIFICATION; ALPHA; TRANSPORT; CHROMATIN; SEQUENCE; NURD; NuRD; Chromatin remodeling; Nuclear import | ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften, Biologie | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Ja | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-553713 | ||||
| Dokumenten-ID | 55371 |
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