TABLE 1.
Effect of shift to oxidative metabolism on catalase activity monitored in H. influenzae Rd extracts derived from cultures grown in the presence or absence of GSSGa
| Growth medium (growth condition) | Mean catalase (HktE)b activity (μmol of H2O2 decomposed/min/mg of protein) ± SEM |
|---|---|
| anMIc(GSSG) (anaerobiosis) | 34.0 ± 2.3 |
| anMIc(GSSG) (aerobiosis) | 33.6 ± 4.5 |
| anMIc (anaerobiosis) | 34.4 ± 1.2 |
| anMIc (aerobiosis) | 228 ± 22 |
a
See Materials and Methods for experimental details.
b
Results are expressed as the mean values from three independent experiments.