TABLE 2.
Effect of metal ions and inhibitors on PicC activitya
| Ion or inhibitor | Mean relative activity (%) ± SD |
|---|---|
| Blank | 100 |
| CaCl2 | 90.68 ± 1.49 |
| CoCl2 | 84.47 ± 2.21 |
| FeCl3 | 97.59 ± 1.44 |
| MgSO4 | 87.59 ± 1.95 |
| ZnSO4 | 97.11 ± 1.84 |
| EDTA | 60.94 ± 1.64 |
| PMSF | 97.27 ± 0.32 |
| AgNO3 | 4.63 ± 0.53 |
| CdCl2 | 99.98 ± 2.43 |
| CuCl2 | 23.89 ± 0.67 |
| HgCl2 | 2.36 ± 0.40 |
| MnSO4 | 91.30 ± 1.13 |
| DEPC | 4.05 ± 0.19 |
| 8-HQSA | 55.21 ± 0.91 |
| Sodium iodoacetate | 81.68 ± 0.99 |
a
Metal ions were tested at 0.1 mM. DEPC, 0.1%; PMSF, 1%; sodium iodoacetate, 0.025 mM; 8-HQSA, 100 μg/ml; EDTA, 100 μg/ml.