The Gram-positive anaerobic bacterium Clostridium perfringens
is widely distributed in nature, especially in soil and the gastrointestinal tracts of humans and animals. C. perfringens
causes gas gangrene and food poisoning, and it produces extracellular enzymes and toxins that are thought to act synergistically and contribute to its pathogenesis. A complicated regulatory network of toxin genes has been reported that includes a two-component system for regulatory RNA and cell-cell communication. It is necessary to clarify the global regulatory system of these genes in order to understand and treat the virulence of C. perfringens
. We summarize the existing knowledge about the regulatory mechanisms here.
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