TABLE 4.
Expression of fecA-lacZ in E. coli AA93 Δfec
| Plasmid | Fusion site at amino acid: | β-Galactosidase activity (units)
|
|
|---|---|---|---|
| No citrate | With citrate | ||
| pHSG576 | 5 | 7 | |
| pIS135 | 6 | 502 | |
| pDW46.08 | 8 | 7 | 9 |
| pDW46.61 | 61 | 85 | 85 |
| pDW46.81 | 81 | 439 | 349 |
| pDW46.107 | 107 | 287 | 176 |
| pDW46.127 | 127 | 226 | 137 |
| pDW46.149 | 149 | 220 | 113 |
| pDW46.159 | 159 | 71 | 68 |
| pDW46.172 | 172 | 86 | 98 |
| pDW46.210 | 210 | 60 | 79 |
| pDW46.230 | 230 | 54 | 64 |
| pDW46.237 | 237 | 41 | 47 |
| pDW46.248 | 248 | 42 | 56 |
| pDW46.265 | 265 | 41 | 70 |
| pDW46.281 | 281 | 33 | 63 |
| pDW46.301 | 301 | 53 | 93 |
| pDW41 | FecR (G91D,G93D) | 81 | 65 |