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Comparison of the β-galactosidase activities of four randomly picked clones from the library and corresponding sequences of the lacZ upstream regions
| Transformant | Artificial promoter | Start codon | RBS sequence | β-Galactosidase activity (U/mg) |
|---|---|---|---|---|
| 1 | 1.6 GI | TTG | TCACAGGAGA | 0.28 ± 0.1 |
| 2 | 1.6 GI | ATG | AAGGAGGAAA | 5.7 ± 1.2 |
| 3 | 1.2 GI | ATG | ACACAGGAAA | 0.7 ± 0.3 |
| 4 | 1.6 GI | TTG | ACACAGAAGA | 0.03 ± 0.01 |
