Table 2.
Effects of different metal ions and chemical reagents on the enzyme activity of CbGI.
| Chemicals | Relative activity (%) | Chemicals | Relative activity (%) |
|---|---|---|---|
| None (Co2+) | 100 ± 2.9 | None (Co2+) | 100 ± 0.9 |
| K+ | 111 ± 1.5 | Mg2+ | 117 ± 2.9 |
| Na+ | 101 ± 2.8 | β-Mercaptoethanol | 107 ± 2.1 |
| Mg2+ | 98 ± 1.4 | K+ | 94 ± 2.4 |
| β-Mercaptoethanol | 79 ± 1.2 | Na+ | 86 ± 3.3 |
| Mn2+ | 29 ± 3.2 | Zn2+ | 73 ± 2.6 |
| Cr3+ | 12 ± 2.6 | Fe2+ | 57 ± 3.2 |
| Ca2+ | 12 ± 0.5 | Ca2+ | 49 ± 2.6 |
| Ni2+ | 9 ± 1.4 | SDS | 43 ± 1.0 |
| SDS | 7 ± 1.0 | Mn2+ | 32 ± 1.1 |
| Ag+ | 1 ± 0.5 | Ni2+ | 11 ± 3.2 |
| EDTA | ND | Cr3+ | 3 ± 0.2 |
| Fe2+ | ND | EDTA | ND |
Note. ND: no enzyme activity detected.