TABLE 3.
Effect of metal ions and chelators on the enzyme activity of PsC12DO.
| Compound | Relative activity (%) |
| None (control) | 99.93 ± 4.43 |
| Fe3+ | 4.21 ± 3.93b |
| Ca2+ | 61.44 ± 4.95 |
| Zn2+ | 7.75 ± 0.38b |
| Co2+ | 76.38 ± 8.1 |
| K+ | 72.42 ± 17.33 |
| EDTA | 71.22 ± 19.12 |
| Cu2+ | 57.64 ± 11.43 |
| Fe2+ | 80.05 ± 18.5 |
| Mg2+ | 59.79 ± 7.52 |
| Mn2+ | 48.68 ± 4.45a |
| Ni2+ | 72.26 ± 6.03 |
| Hg2+ | 0.50 ± 0.05b |
Data are the means of three independent measurements ± SD. Different letters indicate statistical significance by multiple comparison (ap > 0.01, bp > 0.001).