Streptococcus salivarius urease expression: involvement of the phosphoenolpyruvate:sugar phosphotransferase system.

@article{Chen1998StreptococcusSU,
  title={Streptococcus salivarius urease expression: involvement of the phosphoenolpyruvate:sugar phosphotransferase system.},
  author={Yan Yu Chen and Timothy J. Hall and Robert A Burne},
  journal={FEMS microbiology letters},
  year={1998},
  volume={165 1},
  pages={
          117-22
        }
}
Urease expression in Streptococcus salivarius 57.1 is induced by acidic pH, and further enhanced at high growth rate and with excess carbohydrate. Notably, the phosphoenolpyruvate (PEP):sugar phosphotransferase system (PTS) activity is repressed in oral streptococci under the same conditions. To test the hypothesis that the PTS may be involved in urease regulation, spontaneous mutants (PTS-1 and PTS-4) that were resistant to 2-deoxyglucose were isolated. When compared to wild-type, PTS-1 was… CONTINUE READING

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The pH-dependent expression of the urease operon in Streptococcus salivarius is mediated by CodY.

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