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Effect of metal ions on streptokinase activity.
| Additive | Residual activity (%) at the concentration (mM) | ||
|---|---|---|---|
| 1 | 3 | 5 | |
| AgNO2 | 16.1 ± 0.1 | n.d. | n.d. |
| CaCl2 | 14.5 ± 0.2 | n.d. | n.d. |
| CoCl2 | 15.6 ± 0.1 | n.d. | n.d. |
| EDTA | 50.4 ± 0.2 | 70.5 ± 0.3 | 88.2 ± 0.4 |
| KCl | 18.5 ± 0.1 | 25.2 ± 0.2 | 59.6 ± 0.5 |
| MnSO4 | 40.5 ± 0.4 | 54.2 ± 0.3 | 68.4 ± 0.5 |
