Table 2.
Effect of metal salts and chemicals on enzyme activity
| Metal ions and chemicals | Concentration (mM) | Relative enzyme activity (%) |
|---|---|---|
| Control | 0 | 100.0 ± 0.38 l |
| Mg2+ | 5.0 | 100.2 ± 0.99 j |
| 1.0 | 100.4 ± 0.85 h | |
| Ca2+ | 5.0 | 101.1 ± 0.36 e |
| 1.0 | 100.5 ± 0.72 g | |
| Mn2+ | 5.0 | 100.1 ± 0.46 k |
| 1.0 | 98.3 ± 1.37 p | |
| Fe2+ | 5.0 | 112.6 ± 0.47 a |
| 1.0 | 102.0 ± 1.04 c | |
| Zn2+ | 5.0 | 101.6 ± 0.15 d |
| 1.0 | 98.6 ± 0.27 o | |
| Pb+ | 5.0 | 100.3 ± 0.36 i |
| 1.0 | 99.5 ± 0.25 m | |
| Cu2+ | 5.0 | 86.3 ± 1.51 t |
| 1.0 | 97.9 ± 1.56 q | |
| EDTA | 5.0 | 101.6 ± 0.95 d |
| 1.0 | 101.1 ± 0.74 f | |
| DTT | 5.0 | 92.9 ± 2.11 s |
| 1.0 | 95.1 ± 1.85 r | |
| PMSF | 5.0 | 109.1 ± 0.72 b |
| 1.0 | 98.6 ± 1.22 n |
(n = 3); Results are mean ± SD of independent determinations. Different letters in the superscript in same column are significantly different (p < 0.05)