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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: Curr Opin Biotechnol. 2021 Jan 18;69:145–152. doi: 10.1016/j.copbio.2020.12.011

Figure 1. Next-generation transcriptional regulatory modules for gene expression control.

Figure 1.

a) Completely randomized regulatory sequences in both promoter and RBS regions in S. albus. IdgS is a nonribosomal peptide synthetase (NRPS), which produces the blue pigment indigoidine; b) Metagenomic mining of natural 5’ regulatory elements from diverse bacteria; c) iFFL-stabilized promoters in E. coli. iFFL, incoherent FeedForward Loop. TALE, Transcription-Activator Like Effector.