TABLE 2.
Effects of different metal cations on CsnBm activity.
| Metal cations | Residual activity (%) | |
| 1 mM | 5 mM | |
| Control | 100 | 100 |
| Co2+ | 92 | 86 |
| Cu2+ | 62 | 30 |
| Fe2+ | 9 | 6 |
| Na+ | 96 | 95 |
| Ca2+ | 112 | 109 |
| K+ | 96 | 93 |
| Mn2+ | 180 | 153 |
| Mg2+ | 115 | 112 |
| Zn2+ | 121 | 111 |
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