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Building on the Ccr4-Not architecture

Contributeurs/tricesVillanyi, Zoltan; Collart, Martine
Publié dansBioEssays, vol. 38, no. 10, p. 997-1002
Date de publication2016
Résumé

In a recent issue of Nature Communications Ukleja and co-workers reported a cryo-EM 3D reconstruction of the Ccr4-Not complex from Schizosaccharomyces pombe with an immunolocalization of the different subunits. The newly gained architectural knowledge provides cues to apprehend the functional diversity of this major eukaryotic regulator. Indeed, in the cytoplasm alone, Ccr4-Not regulates translational repression, decapping and deadenylation, and the Not module additionally plays a positive role in translation. The spatial distribution of the subunits within the structure is compatible with a model proposing that the Ccr4-Not complex interacts with the 5' and 3' ends of target mRNAs, allowing different functional modules of the complex to act at different stages of the translation process, possibly within a circular constellation of the mRNA. This work opens new avenues, and reveals important gaps in our understanding regarding structure and mode of function of the Ccr4-Not complex that need to be addressed in the future.

Citation (format ISO)
VILLANYI, Zoltan, COLLART, Martine. Building on the Ccr4-Not architecture. In: BioEssays, 2016, vol. 38, n° 10, p. 997–1002. doi: 10.1002/bies.201600051
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ISSN du journal1521-1878
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Informations techniques

Création16.09.2016 11:39:00
Première validation16.09.2016 11:39:00
Heure de mise à jour15.03.2023 00:44:27
Changement de statut15.03.2023 00:44:27
Dernière indexation12.02.2024 11:25:41
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