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l-rhamnose induction of rhaS-lacZ fusions
| Promoter fusion | β-Galactosidase sp acta
|
|
|---|---|---|
| + rhamnose | − rhamnose | |
| Φ(rhaS-lacZ)Δ216 | 131 | 0.42 |
| Φ(rhaS-lacZ)Δ128 | 185 | 0.41 |
| Φ(rhaS-lacZ)Δ90 | 1.7 | 0.13 |
β-Galactosidase specific activity was measured from single-copy rhaS-lacZ fusions in the presence or absence of added l-rhamnose. Cultures were grown in MOPS media containing glycerol. Standard errors were less than 21% of the average units.
