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argP-lac expression in derivatives of argP202 strain GJ4536 with different plasmidsa
| Plasmid (genotypic description) | β-Galactosidase sp act (Miller units) with additive
|
||
|---|---|---|---|
| No additive | Arg | Lys | |
| pCL1920 | 125 | 110 | 115 |
| pHYD915 (argP+) | 107 | 109 | 110 |
| pHYD926 (argPd) | 89 | 92 | 108 |
Cultures were grown to exponential phase in glucose-minimal medium supplemented with spectinomycin. Enzyme specific activity values are given in Miller units (33).
