Twin arginine translocation in Yersinia.
Bacteria utilise Twin arginine translocation (Tat) to deliver folded proteins across the cytoplasmic membrane. Disruption of Tat typically results in pleiotropic effects on e.g. growth, stress resistance, bacterial membrane biogenesis, motility and cell morphology. Further, Tat is coupled to virulence in a range of pathogenic bacteria, including species of Pseudomonas, Legionella, Agrobacterium and Mycobacterium. We have investigated this, for Yersinia, previously unexplored system, and have shown that the Tat pathway is functional and absolutely required for virulence of Yersinia pseudotuberculosis. A range of putative Yersinia Tat substrates have been predicted in silico, which together with the Tat system itself may be interesting targets for future development of antimicrobial treatments. Here we present a brief review of bacterial Tat and discuss our results concerning this system in Yersinia.
Lavander
Moa
M
Department of Molecular Biology, Umeå University, Sweden. moa.lavander@foi.se
Ericsson
Solveig K
SK
Bröms
Jeanette E
JE
Forsberg
Ake
A
D000595:Amino Acid Sequence; D000818:Animals; D001120:Arginine / Q000378:metabolism*; D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism*; D001693:Biological Transport, Active; D002462:Cell Membrane / Q000378:metabolism; D005798:Genes, Bacterial; D026901:Membrane Transport Proteins / Q000235:genetics / Q000378:metabolism*; D008969:Molecular Sequence Data; D009068:Movement; D009876:Operon; D021382:Protein Sorting Signals / Q000235:genetics; D014774:Virulence; D015007:Yersinia / Q000235:genetics / Q000378:metabolism* / Q000472:pathogenicity
D001426:Bacterial Proteins; D026901:Membrane Transport Proteins; D021382:Protein Sorting Signals; D001120:Arginine