Academic Journal
When translation elongation is impaired, the mRNA is uniformly destabilized by the RNA degradosome, while the concentration of mRNA is altered along the molecule
| العنوان: | When translation elongation is impaired, the mRNA is uniformly destabilized by the RNA degradosome, while the concentration of mRNA is altered along the molecule |
|---|---|
| المؤلفون: | Duviau, Marie-Pierre, Chen, Fan, Emile, Anthony, Cocaign-Bousquet, Muriel, Girbal, Laurence, Nouaille, Sébastien |
| المساهمون: | Toulouse Biotechnology Institute (TBI), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| المصدر: | ISSN: 0305-1048. |
| بيانات النشر: | HAL CCSD Oxford University Press |
| سنة النشر: | 2023 |
| المجموعة: | Institut National de la Recherche Agronomique: ProdINRA |
| مصطلحات موضوعية: | [SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN], [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology |
| الوصف: | International audience ; mRNA sits at the crossroads of transcription, translation and mRNA degradation. Many questions remain about the coupling of these three processes in Escherichia coli and, in particular, how translation may have an effect on mRNA degradation and transcription. To characterize the interplay between mRNA degradation and translation while accounting for transcription, we altered the translation initiation or elongation and measured the effects on mRNA stability and concentration. Using a mapping method, we analysed mRNA concentration and stability at the local scale all along the transcript. We showed that a decrease in translation initiation efficiency destabilizes the mRNA and leads to a uniform decrease in mRNA concentration throughout the molecule. Prematurely terminating translation elongation by inserting a stop codon is associated with a drop in local mRNA concentration downstream of the stop codon, due to the uncoupling of transcription and translation. In contrast, this translation alteration uniformly destabilizes the coding and ribosome-free regions, in a process triggered by RNase E activity, and its ability to form the RNA degradome. These results demonstrate how ribosomes protect mRNA molecules and highlight how translation, mRNA degradation and transcription are deeply interconnected in the quality control process that avoids unproductive gene expression in cells. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-04012706; https://hal.science/hal-04012706; https://hal.science/hal-04012706/document; https://hal.science/hal-04012706/file/DUVIAU%20NAR%202023.pdf |
| DOI: | 10.1093/nar/gkad104 |
| الاتاحة: | https://hal.science/hal-04012706 https://hal.science/hal-04012706/document https://hal.science/hal-04012706/file/DUVIAU%20NAR%202023.pdf https://doi.org/10.1093/nar/gkad104 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.BF23CB6 |
| قاعدة البيانات: | BASE |
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