TABLE 3.
Induction of fecA-lacZ expression in E. coli AA93 Δfec pIS1034 fecA fecA-lacZ synthesizing wild-type FecR, FecR-(His)6, (His)10-FecR, or no FecR
Plasmid | β-Galactosidase activity (Miller units) in:
|
|
---|---|---|
NB medium | NB medium and citrate | |
pIS136 fecI | 8 | 7 |
pIS135 fecI fecR | 10 | 446 |
pIHisR fecI fecRhis | 7 | 296 |
pIRHis fecIhisR | 8 | 281 |