Regulation of Organic Hydroperoxide Stress Response by Two OhrR Homologs in Pseudomonas aeruginosa.

Abstract excerpt

Pseudomonas aeruginosa ohrR and ospR are gene homologs encoding oxidant sensing transcription regulators. OspR is known to regulate gpx, encoding a glutathione peroxidase, while OhrR regulates the expression of ohr that encodes an organic peroxide specific peroxiredoxin. Here, we show that ospR mediated gpx expression, like ohrR and ohr, specifically responds to organic hydroperoxides as compared to hydrogen...

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