Table 3 Influence of metal ions at 5 mM on miswak protease P1. Each value represents the mean of three experiments ± S.E
From: Purification and characterization of cysteine protease from miswak Salvadora persica
Metal cations | Units/mg protein | Relative activity % |
|---|---|---|
Control | 355 ± 12.4 | 100 ± 3.5 |
Ca2+ | 286 ± 15.0 | 80 ± 4.2 |
Ni2+ | 293 ± 13.5 | 82 ± 3.8 |
Pb2+ | 347 ± 16.4 | 97 ± 4.6 |
Co2+ | 286 ± 11.7 | 80 ± 3.3 |
Hg2+ | 164 ± 9.2 | 46 ± 2.6 |
Cu2+ | 268 ± 14.6 | 75 ± 4.1 |
Zn2+ | 272 ± 12.8 | 76 ± 3.6 |