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Bicistronic Design-Based Continuous and High-Level Membrane Protein Production in Escherichia coli.


ABSTRACT: Escherichia coli has been widely used as a platform microorganism for both membrane protein production and cell factory engineering. The current methods to produce membrane proteins in this organism require the induction of target gene expression and often result in unstable, low yields. Here, we present a method combining a constitutive promoter with a library of bicistronic design (BCD) elements, which enables inducer-free, tuned translation initiation for optimal protein production. Our system mediates stable, constitutive production of bacterial membrane proteins at yields that outperform those obtained with E. coli Lemo21(DE3), the current gold standard for bacterial membrane protein production. We envisage that the continuous, fine-tunable, and high-level production of membrane proteins by our method will greatly facilitate their study and their utilization in engineering cell factories.

SUBMITTER: Claassens NJ 

PROVIDER: S-EPMC6646956 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Bicistronic Design-Based Continuous and High-Level Membrane Protein Production in <i>Escherichia coli</i>.

Claassens Nico J NJ   Finger-Bou Max M   Scholten Bart B   Muis Frederieke F   de Groot Jonas J JJ   de Gier Jan-Willem JW   de Vos Willem M WM   van der Oost John J  

ACS synthetic biology 20190702 7


<i>Escherichia coli</i> has been widely used as a platform microorganism for both membrane protein production and cell factory engineering. The current methods to produce membrane proteins in this organism require the induction of target gene expression and often result in unstable, low yields. Here, we present a method combining a constitutive promoter with a library of bicistronic design (BCD) elements, which enables inducer-free, tuned translation initiation for optimal protein production. Ou  ...[more]

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