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Figure 5 | BMC Microbiology

Figure 5

From: The PhoBR two-component system regulates antibiotic biosynthesis in Serratia in response to phosphate

Figure 5

In E. coli , Serratia 39006 PhoB can activate expression from the pigA and rap promoters. β-Galactosidase activity was measured from E. coli cells grown in LB carrying plasmid pTA15 or pTA14 (containing the pigA or rap promoters respectively cloned upstream of a promoterless lacZ gene) and either an empty vector control (pQE-80L) (solid bar) or pTA74, encoding PhoB (unfilled bar).

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