Fig. 1.
Strategy used for the construction of pCMP (a) and pBCS (b). pCMP expression unit for the upstream operon (cmcax and cppAx) with T7 promoter and lac operator, streptomycin resistance region, CloDF13 replicon (CDF ori), lac I region. pBCS expression unit for bcs operon with T7 promoter and lac operator (bcsA, bcsB, bcsC, and bcsC), f1 replicon, ampicillin resistance region, pBR322-derived ColE1 replicon, lac I region