pBAD-ETgA plasmid vector质粒载体 BioVector NTCC质粒载体菌种细胞基因保藏中心

pBAD-ETgA plasmid vector质粒载体

Bacterial type III secretion systems (T3SSs) assemble a multiprotein complex termed the injectisome, which acts as a molecular syringe for translocation of specific effector proteins into the cytoplasm of host cells. The use of injectisomes for delivery of therapeutic proteins into mammalian cells is attractive for biomedical applications. With that aim, we previously generated a non-pathogenic Escherichia coli strain, called Synthetic Injector E. coli (SIEC), which assembles functional injectisomes from enteropathogenic E. coli (EPEC). The assembly of injectisomes in EPEC is assisted by the lytic transglycosylase EtgA, which degrades the peptidoglycan layer. As SIEC lacks EtgA, we investigated whether expression of this transglycosylase enhances the protein translocation capacity of the engineered bacterium.

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