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. 2005 Mar;187(6):2148–2156. doi: 10.1128/JB.187.6.2148-2156.2005

FIG. 5.

FIG. 5.

(A) Scheme of genetic organization of the hemC-hemE region. Putative PpsR binding sites are shown. (B) Expression of the hemC::lacZ and hemE::lacZ transcriptional fusions in P. denitrificans containing in trans either vector pRK415 (white bars) or plasmid pPNs (pRK415::ppsR) (grey bars). One unit of β-galactosidase is equal to 1 nmol of o-nitrophenyl-β-d-galactopyranoside ΔA600−1 ml of culture−1 min−1. Average data from three independent experiments are shown, with standard deviations not exceeding 13% of the averages.