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. 2015 Jun 25;11(6):e1005229. doi: 10.1371/journal.pgen.1005229

Fig 1. Feedback loops that control the bistable gene expression of genetic competence in B. subtilis.

Fig 1

If Kre is low, the comK mRNA and, thus, ComK protein can accumulate, resulting in the expression of competence genes. In contrast, high activity of Kre results in degradation of comK mRNA, and the cells do not enter the competence state.