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Effects of metal cations on the activity of purified (615.1-fold) X-PDP
| Metal salt | Relative activitya
|
|
|---|---|---|
| 0.1 mM | 1.0 mM | |
| CaCl2 | 94 | 88 |
| CoCl2 | 94 | 81 |
| CuCl2 | 83 | 31 |
| HgCl2 | 43 | 22 |
| MgCl2 | 88 | 85 |
| NaCl | 93 | 90 |
| ZnCl2 | 50 | 47 |
Expressed as a percentage of that obtained in the absence of any added metal salt, which was given a value of 100%, corresponding to 0.016 U (μmol h−1).
