Figure 5From: CcpA represses the expression of the divergent cit operons of Enterococcus faecalis through multiple cresitesSchematic representation of the pTCV- lac derived plasmids. Promoter regions of the citHO and citCL operons are shown. The different cre sites are indicated by boxes (C1, C2, C3 and M for mutated cre sites). The glucose repression index represents the ratio of accumulated β-galactosidase activity between cell extracts from cultures grown in LBC and LBCG medium (MULBC/MULBGC) for 7 hours.Back to article page