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. 2022 Dec 9;13:7624. doi: 10.1038/s41467-022-33576-3

Fig. 2. A lacZ reporter system enables characterization of E. lenta endogenous promoters and synthetic inducible expression systems.

Fig. 2

a E. coli lacZ is introduced into pXD69m2 vector as a reporter gene in E. lenta. b LacZ assays revealed a high dynamic range for the lacZ reporter system in E. lenta. β-Gal activity was normalized to Miller units. c Design of cumate-inducible expression systems using the CymR repressor and CuO, expressed under the control of Bacillus and E. lenta promoters in plasmids pXD70CT5 and pXD70CT3, respectively. d LacZ assays revealed tight regulation of cumate-inducible expression systems pXD70CT3 and pXD70CT5. e Design of IPTG-inducible expression system in plasmid pXD70LacZ6. f LacZ assays for pXD70LacZ6. Data in panels b, d, and f are represented as mean ± SD with n = 3 biological replicates. Source data are provided as a Source Data file.