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Multiplexed gene control reveals rapid mRNA turnover

Baudrimont, Antoine and Voegeli, Sylvia and Viloria, Eduardo Calero and Stritt, Fabian and Lenon, Marine and Wada, Takeo and Jaquet, Vincent and Becskei, Attila. (2017) Multiplexed gene control reveals rapid mRNA turnover. Science Advances, 3 (7). e1700006.

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Abstract

The rates of mRNA synthesis and decay determine the mRNA expression level. The two processes are under coordinated control, which makes the measurements of these rates challenging, as evidenced by the low correlation among the methods of measurement of RNA half-lives. We developed a minimally invasive method, multiplexed gene control, to shut off expression of genes with controllable synthetic promoters. The method was validated by measuring the ratios of the nascent to mature mRNA molecules and by measuring the half-life with endogenous promoters that can be controlled naturally or through inserting short sequences that impart repressibility. The measured mRNA half-lives correlated highly with those obtained with the metabolic pulse-labeling method in yeast. However, mRNA degradation was considerably faster in comparison to previous estimates, with a median half-life of around 2 min. The half-life permits the estimation of promoter-dependent and promoter-independent transcription rates. The dynamical range of the promoter-independent transcription rates was larger than that of the mRNA half-lives. The rapid mRNA turnover and the broad adjustability of promoter-independent transcription rates are expected to have a major impact on stochastic gene expression and gene network behavior.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Computational & Systems Biology > Synthetic Microbiology (Becskei)
UniBasel Contributors:Becskei, Attila and Baudrimont, Antoine and Vögeli, Sylvia and Calero Viloria, Eduardo and Wada, Takeo and Jaquet, Vincent
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Association for the Advancement of Science
e-ISSN:2375-2548
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:02 Oct 2017 13:46
Deposited On:02 Oct 2017 13:46

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