Engineering the flagellar type III secretion system: improving capacity for secretion of recombinant protein
نویسندگان
چکیده
منابع مشابه
Selective Purification of Recombinant Neuroactive Peptides Using the Flagellar Type III Secretion System
UNLABELLED The structure, assembly, and function of the bacterial flagellum involves about 60 different proteins, many of which are selectively secreted via a specific type III secretion system (T3SS) (J. Frye et al., J. Bacteriol. 188:2233-2243, 2006). The T3SS is reported to secrete proteins at rates of up to 10,000 amino acid residues per second. In this work, we showed that the flagellar T3...
متن کاملIdentification of the fliI and fliJ components of the Caulobacter flagellar type III protein secretion system.
Caulobacter crescentus is motile by virtue of a polar flagellum assembled during the predivisional stage of the cell cycle. Three mutant strains in which flagellar assembly was blocked at an early stage were isolated. The mutations in these strains mapped to an operon of two genes, fliI and fliJ, both of which are necessary for motility. fliI encodes a 50-kDa polypeptide whose sequence is close...
متن کاملType III secretion system
The type III secretion system (T3SS) is a membrane-embedded nanomachine found in several Gram-negative bacteria. Upon contact between bacteria and host cells, the syringe-like T3SS (Figure 1) transfers proteins termed effectors from the bacterial cytosol to the cytoplasm or the plasma membrane of a single target cell. This is a major difference from secretion systems that merely release molecul...
متن کاملFunction of FlhB, a Membrane Protein Implicated in the Bacterial Flagellar Type III Secretion System
The membrane protein FlhB is a highly conserved component of the flagellar secretion system, and it plays an active role in the regulation of protein export. In this study conserved properties of FlhB that are important for its function were investigated. Replacing the flhB gene (or part of the gene) in Salmonella typhimurium with the flhB gene of the distantly related bacterium Aquifex aeolicu...
متن کاملFunctional Activation of the Flagellar Type III Secretion Export Apparatus
Flagella are assembled sequentially from the inside-out with morphogenetic checkpoints that enforce the temporal order of subunit addition. Here we show that flagellar basal bodies fail to proceed to hook assembly at high frequency in the absence of the monotopic protein SwrB of Bacillus subtilis. Genetic suppressor analysis indicates that SwrB activates the flagellar type III secretion export ...
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ژورنال
عنوان ژورنال: Microbial Cell Factories
سال: 2019
ISSN: 1475-2859
DOI: 10.1186/s12934-019-1058-4