Characterization of the low-pH responses of Helicobacter pylori using genomic DNA arrays

Abstract excerpt

Helicobacter pylori is unique among bacterial pathogens in its ability to persist in the acidic environment of the human stomach. To identify H. pylori genes responsive to low pH, the authors assembled a high-density array of PCR-amplified random genomic DNA. Hybridization of radiolabelled cDNA probes, prepared using total RNA from bacteria exposed to buffer at either pH 4.0 or pH 7.0, allowed both qualitative...

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