The flagellum-specific export system is a specialized type III export machinery, which exports external flagellar proteins through the central channel of the flagellar filament. A number of evidence indicates that short segments within the disordered N-terminal region of flagellar axial proteins are recognized by the flagellum-specific export apparatus. Recently, we have demonstrated that the 26-47 segment of Salmonella typhimurium flagellin is capable of mediating flagellar export. N-terminal flagellin segments containing the export signal combined with a hexahistidine tag can be attached to heterologous proteins (preferentially in the size range of 9-40 kDa) facilitating their secreted expression and easy purification from the medium. Certain over-expressed proteins that are easily degraded within the cells are found intact in the medium implying a potential application of this expression system for proteins of high proteolytic susceptibility. © 2012 Springer Science+Business Media, LLC.
CITATION STYLE
Vonderviszt, F., Sajó, R., Dobó, J., & Závodszky, P. (2012). The use of a flagellar export signal for the secretion of recombinant proteins in Salmonella. Methods in Molecular Biology, 824, 131–143. https://doi.org/10.1007/978-1-61779-433-9_6
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