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Effect of bivalent ions on the activity of the purified PepN enzyme of S. thermophilus A inactivated with 0.1 mM EDTA
| PepN | Added ion (1 mM) | Relative activity (%) |
|---|---|---|
| Control | 100 | |
| Inactivated | 14 | |
| Inactivated | Ca2+ | 45 |
| Inactivated | Co2+ | 80 |
| Inactivated | Cu2+ | 15 |
| Inactivated | Mg2+ | 12 |
| Inactivated | Mn2+ | 98 |
| Inactivated | Zn2+ | 87 |
