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Effect of metal ions on dipeptidase (Met-Pro) activity of Phdpd and Zn-Phdpd.
| Metal (1.2 mM) | Relative activity (%) | |
|---|---|---|
| Phdpd | Zn-Phdpd | |
| CoCl2 | 100 | 100 |
| MnCl2 | 155 | 53 |
| ZnCl2 | 1 | 1 |
| no metal | 20 | 1 |
Zn-Phdpd was not inhibited in the presence of cacodylate ion from 0.4 μM to 40 mM concentrations.
Specific activity of Phdpd in the presence of 1.2 mM Co ions was 3 times that of Zn-Phdpd.
