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Final β-lactamase activities of microaerobically grown E. coli MG1655 expressing various hemoglobins
| Plasmid | Hemoglobin | β-Lactamase activity (avg ± SD)a |
|---|---|---|
| pPPC1 | VHb | 119 ± 13 |
| pAX1 | FHPg | 109 ± 3 |
| pAX4 | VHb-FAD-NAD | 271 ± 3 |
| pAX5 | FHP | 113 ± 10 |
| pAX9 | VHb-FAD | 106 ± 5 |
| pAX6 | FHPg-FAD | 40 ± 1 |
| pAX12 | VHb-NAD | 62 ± 15 |
| pAX14 | FHPg-NAD | 36 ± 3 |
| pKQV4 | Control | 88 ± 3 |
Final β-lactamase activity expressed as units per milligram of soluble protein.
