Article ; Online: Hyper-production of porcine contagious pleuropneumonia subunit vaccine proteins in Escherichia coli by developing a bicistronic T7 expression system.
2024 Volume 19, Issue 1, Page(s) e2300187
Abstract: The ApxII toxin and the outer membrane lipoprotein (Oml) of Actinobacillus pleuropneumoniae are important vaccine antigens against porcine contagious pleuropneumonia (PCP), a prevalent infectious disease affecting the swine industry worldwide. Previous ... ...
Abstract | The ApxII toxin and the outer membrane lipoprotein (Oml) of Actinobacillus pleuropneumoniae are important vaccine antigens against porcine contagious pleuropneumonia (PCP), a prevalent infectious disease affecting the swine industry worldwide. Previous studies have reported the recombinant expression of ApxII and Oml in Escherichia coli; however, their yields were not satisfactory. Here, we aimed to enhance the production of ApxII and Oml by constructing a bicistronic expression system based on the widely used T7 promoter. To create efficient T7 bicistronic expression cassettes, 16 different fore-cistron sequences were introduced downstream of the T7 promoter. The expression of three vaccine antigens Oml1, Oml7, and ApxII in the four strongest bicistronic vectors were enhanced compared to the monocistronic control. Further optimization of the fermentation conditions in micro-well plates (MWP) led to improved production. Finally, the production yields reached unprecedented levels of 2.43 g L |
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MeSH term(s) | Swine ; Animals ; Bacterial Proteins ; Escherichia coli/genetics ; Pleuropneumonia, Contagious/prevention & control ; Recombinant Proteins/genetics ; Actinobacillus Infections/prevention & control ; Vaccines, Subunit/genetics |
Chemical Substances | Bacterial Proteins ; Recombinant Proteins ; Vaccines, Subunit |
Language | English |
Publishing date | 2024-01-04 |
Publishing country | Germany |
Document type | Journal Article |
ZDB-ID | 2221885-3 |
ISSN | 1860-7314 ; 1860-6768 |
ISSN (online) | 1860-7314 |
ISSN | 1860-6768 |
DOI | 10.1002/biot.202300187 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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