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Effects of metal ions on Chi23 activity.
| Metal ions |
Relative activity (%) |
|
| 1 mM | 10 mM | |
| None | 100 | 100 |
| K+ | 106.8 ± 1.6 | 100.1 ± 2.6 |
| Li+ | 106.5 ± 1.5 | 122.1 ± 3.0 |
| Ba2+ | 109.7 ± 3.5 | 105.2 ± 1.9 |
| Ca2+ | 109.0 ± 1.3 | 104.2 ± 1.4 |
| Co2+ | 57.0 ± 1.3 | 27.0 ± 0.6 |
| Cu2+ | 40.8 ± 1.5 | LDa |
| Fe2+ | 60.0 ± 1.7 | 10.9 ± 1.2 |
| Mg2+ | 125.9 ± 1.1 | 106.3 ± 1.5 |
| Mn2+ | 37.2 ± 2.7 | 3.7 ± 1.3 |
| Ni2+ | 116.5 ± 2.8 | 104.6 ± 2.2 |
| Zn2+ | 84.0 ± 4.0 | 57.0 ± 0.4 |
aLD indicates that the value was less than the limit of detection.
