Published in:
Open Access 01-12-2014 | Short report
The role of the Cronobacter sakazakii ProP C-terminal coiled coil domain in osmotolerance
Published in: Gut Pathogens | Issue 1/2014
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Background
We investigate the role of the C-terminal coiled coil of the secondary proline porter ProP in contributing to Cronobacter sakazakii osmotolerance.
Findings
The extended C-terminal domain of ProP1 (encoded by ESA_02131) was spliced onto the truncated C-terminal end of ProP2 (encoded by ESA_01706); creating a chimeric protein (ProPc) which exhibits increased osmotolerance relative to the wild type.
Conclusions
It appears that the C-terminal coiled coil domain tunes ProP at low osmolality, whereas ProP transporters lacking the coiled coil domain are more active at a higher osmolality range.