Table 3 Effect of metal ions on PhXyl activity
Metal ion | Relative activity (%) in presence of metal ionsa | ||
|---|---|---|---|
0.1 mM | 1 mM | 10 mM | |
Control | 100 | 100 | 100 |
HgCl2 | 86.23 ± 2.3 | 86.59 ± 2.0 | 84.70 ± 3.2 |
NiCl2 | 89.67 ± 3.0 | 98.90 ± 2.9 | 93.31 ± 3.6 |
MgCl2 | 92.20 ± 3.2 | 94.45 ± 2.8 | 88.47 ± 2.9 |
MnCl2 | 90.82 ± 3.0 | 90.82 ± 3.0 | 89.52 ± 3.5 |
CaCl2 | 89.90 ± 4.1 | 90.82 ± 2.78 | 84.91 ± 2.6 |
ZnCl2 | 92.88 ± 2.8 | 92.37 ± 3.1 | 91.75 ± 4.1 |
FeSo4 | 103.72 ± 4.3 | 121.72 ± 4.8 | 83.95 ± 3.4 |
FeCl3 | 110.32 ± 3.8 | 101.07 ± 4.1 | 98.61 ± 4.2 |
CuSo4 | 90.36 ± 2.5 | 90.35 ± 2.9 | 89.26 ± 2.2 |
PbCl2 | 89.22 ± 3.7 | 100.00 ± 3.5 | 96.11 ± 3.0 |
CoSo4 | 90.59 ± 2.9 | 96.14 ± 3.0 | 74.96 ± 2.5 |
AgNo3 | 98.85 ± 2.0 | 96.88 ± 3.7 | 93.31 ± 4.5 |
EDTA | 100.00 ± 4.1 | 82.43 ± 2.8 | 73.09 ± 2.4 |