We found that the global regulatory two-component signal transduction system CovRS mediates the ability of group A streptococcus (GAS) to grow under two stresses encountered during infection: iron starvation and the presence of LL-37. We also showed that CovRS regulates transcription of the multimetal transporter operon that is important for GAS growth in a low concentration of iron.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2620807PMC
http://dx.doi.org/10.1128/JB.01256-08DOI Listing

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