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Effect of metal ions and reducing agents on xylanase activity from halobacterium-OKH.
| Metal ion/chemical | Relative activity (%) | |
|---|---|---|
| 2 mM | 5 mM | |
| Control | 100 | 100 |
| Ca2+ | 146 | 151 |
| Ag2+ | 0 | 0 |
| Hg2+ | 0 | 0 |
| Co2+ | 65 | 63 |
| Fe3+ | 0 | 0 |
| Mg2+ | 119 | 125 |
| Mn2+ | 138 | 142 |
| Ni2+ | 121 | 107 |
| Cu2+ | 0 | 0 |
| Cd2+ | 0 | 0 |
| Zn2+ | 0 | 0 |
| Mercaptoethanol | 126 | 117 |
| EDTA | 35 | 21 |
