Interaction of 7SK with the Smn complex modulates snRNP production
Zitieren Sie bitte immer diese URN: urn:nbn:de:bvb:20-opus-259125
- Gene expression requires tight coordination of the molecular machineries that mediate transcription and splicing. While the interplay between transcription kinetics and spliceosome fidelity has been investigated before, less is known about mechanisms regulating the assembly of the spliceosomal machinery in response to transcription changes. Here, we report an association of the Smn complex, which mediates spliceosomal snRNP biogenesis, with the 7SK complex involved in transcriptional regulation. We found that Smn interacts with the 7SK coreGene expression requires tight coordination of the molecular machineries that mediate transcription and splicing. While the interplay between transcription kinetics and spliceosome fidelity has been investigated before, less is known about mechanisms regulating the assembly of the spliceosomal machinery in response to transcription changes. Here, we report an association of the Smn complex, which mediates spliceosomal snRNP biogenesis, with the 7SK complex involved in transcriptional regulation. We found that Smn interacts with the 7SK core components Larp7 and Mepce and specifically associates with 7SK subcomplexes containing hnRNP R. The association between Smn and 7SK complexes is enhanced upon transcriptional inhibition leading to reduced production of snRNPs. Taken together, our findings reveal a functional association of Smn and 7SK complexes that is governed by global changes in transcription. Thus, in addition to its canonical nuclear role in transcriptional regulation, 7SK has cytosolic functions in fine-tuning spliceosome production according to transcriptional demand.…
Autor(en): | Changhe Ji, Jakob Bader, Pradhipa Ramanathan, Luisa Hennlein, Felix Meissner, Sibylle Jablonka, Matthias Mann, Utz Fischer, Michael Sendtner, Michael Briese |
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URN: | urn:nbn:de:bvb:20-opus-259125 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Medizinische Fakultät / Institut für Klinische Neurobiologie |
Fakultät für Chemie und Pharmazie / Lehrstuhl für Biochemie | |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Nature Communications |
Erscheinungsjahr: | 2021 |
Band / Jahrgang: | 12 |
Heft / Ausgabe: | 1 |
Seitenangabe: | 1278 |
Originalveröffentlichung / Quelle: | Nature Communications (2021), 12:1, 1278. doi:10.1038/s41467-021-21529-1 |
DOI: | https://doi.org/10.1038/s41467-021-21529-1 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit |
Freie Schlagwort(e): | Molecular neuroscience; RNA; RNA splicing; Transcription |
Datum der Freischaltung: | 26.03.2022 |
EU-Projektnummer / Contract (GA) number: | 318987 |
OpenAIRE: | OpenAIRE |
Sammlungen: | Open-Access-Publikationsfonds / Förderzeitraum 2021 |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |