Table 2 The effect of some metal ions on PL from G. stearothermophilus Ah22 activity
Chemical compound | Concentration | PL activity (%) |
|---|---|---|
Control | - | 100 |
CaCl2 | 10 mM | 112.5 |
MgCl2 | 10 mM | 179.2 |
Hg(NO3)2 | 10 mM | 0 |
MnCl2 | 10 mM | 0 |
ZnSO4 | 10 mM | 43.1 |
Cu(NO3)2 | 10 mM | 62.2 |
FeCl2 | 10 mM | 70.5 |
EDTA | 10 mM | 0 |
β-Mercaptoethanol | 10 mM | 0 |
SDS | 10 mM | 0 |