Enhancing the Translational Capacity of E. coli by Resolving the Codon Bias
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064190%3A_____%2F18%3AN0000111" target="_blank" >RIV/00064190:_____/18:N0000111 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1021/acssynbio.8b00332" target="_blank" >http://dx.doi.org/10.1021/acssynbio.8b00332</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acssynbio.8b00332" target="_blank" >10.1021/acssynbio.8b00332</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Enhancing the Translational Capacity of E. coli by Resolving the Codon Bias
Popis výsledku v původním jazyce
Escherichia coli is a well-established and popular host for heterologous expression of proteins. The preference in the choice of synonymous codons (codon bias), however, might differ for the host and the original source of the recombinant protein, constituting a potential bottleneck in production. Codon choice affects the efficiency of translation by a complex and poorly understood mechanism. The availability of certain tRNA species is one of the factors that may curtail the capacity of translation. Here we provide a tRNA-overexpressing strategy that allows the resolution of the codon bias, and boosts the translational capacity of the popular host BL21(DE3) when rare codons are encountered. In the BL21(DE3)-derived strain, called SixPack, copies of the genes corresponding to the six least abundant tRNA species have been assembled in a synthetic fragment and inserted into a rRNA operon. This arrangement, while not interfering with the growth properties of the new strain, allows dynamic control of the transcription of the extra tRNA genes, providing significantly elevated levels of the rare tRNAs in the exponential growth phase. Results from expression assays of a panel of recombinant proteins of diverse origin and codon composition showed that the performance of SixPack surpassed that of the parental BL21(DE3) or a related strain equipped with a rare tRNA-expressing plasmid.
Název v anglickém jazyce
Enhancing the Translational Capacity of E. coli by Resolving the Codon Bias
Popis výsledku anglicky
Escherichia coli is a well-established and popular host for heterologous expression of proteins. The preference in the choice of synonymous codons (codon bias), however, might differ for the host and the original source of the recombinant protein, constituting a potential bottleneck in production. Codon choice affects the efficiency of translation by a complex and poorly understood mechanism. The availability of certain tRNA species is one of the factors that may curtail the capacity of translation. Here we provide a tRNA-overexpressing strategy that allows the resolution of the codon bias, and boosts the translational capacity of the popular host BL21(DE3) when rare codons are encountered. In the BL21(DE3)-derived strain, called SixPack, copies of the genes corresponding to the six least abundant tRNA species have been assembled in a synthetic fragment and inserted into a rRNA operon. This arrangement, while not interfering with the growth properties of the new strain, allows dynamic control of the transcription of the extra tRNA genes, providing significantly elevated levels of the rare tRNAs in the exponential growth phase. Results from expression assays of a panel of recombinant proteins of diverse origin and codon composition showed that the performance of SixPack surpassed that of the parental BL21(DE3) or a related strain equipped with a rare tRNA-expressing plasmid.
Klasifikace
Druh
J<sub>ost</sub> - Ostatní články v recenzovaných periodicích
CEP obor
—
OECD FORD obor
30203 - Respiratory systems
Návaznosti výsledku
Projekt
—
Návaznosti
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
ACS synthetic biology
ISSN
2161-5063
e-ISSN
2161-5063
Svazek periodika
7
Číslo periodika v rámci svazku
11
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
8
Strana od-do
2656-2664
Kód UT WoS článku
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EID výsledku v databázi Scopus
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