Abstract
To identify putative members of a regulon controlled by the H. pylori sensory histidine kinase HP0164 (HK0164), we constructed HK0164 null mutant H. pylori strains and analyzed bacterial gene transcription using DNA arrays. Seven genes were differentially expressed in multiple HK0164 mutant strains compared to their expression in control strains. Strain-dependent variations in differential expression were also detected. These results indicate that the signal transduction circuit utilizing HK0164 controls the transcription of at least seven genes in H. pylori.
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