Hierarchic regulation of a metabolic pathway: H-NS, CRP, and SsrB control myo -inositol utilization by Salmonella enterica
The capacity to utilize myo-inositol (MI) as sole carbon and energy source is widespread among bacteria, among them the intestinal pathogen S. Typhimurium. This study elucidates the complex and hierarchical regulation that underlies the utilization of MI by S. Typhimurium under substrate limitation. A total of seven regulatory factors have been identified so far, allowing the pathogen an environment-dependent, efficient, and fine-tuned regulation of a metabolic property that provides growth advantages in different environments.
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