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Scheme of construction of plasmids pRCR16, pRCR17, pRCR18, and pRCR19. Maps of these plasmids and of the parental pRCR are depicted. The pertinent restriction sites are shown, as well as the putative promoter of the gut operon (Pgut) and the following genes: mrfp, cat, gutR and gutM encoding the mCherry, a chloramphenicol acetyltransferase, GutR and GutM, respectively.
