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. 2022 Mar 14;88(7):e02479-21. doi: 10.1128/aem.02479-21

FIG 1.

FIG 1

TcdR-mediated orthogonal expression. In C. autoethanogenum C24, tcdR is under the control of the lactose-inducible promoter system bgaR-PbgaL from C. perfringens. In this way, the PtcdB promoter can be induced indirectly via the inducible expression of tcdR from the chromosome.