Table 3. Inhibition parameters of Z-Phe-Ala-CHN2 and cathepsin K inhibitor II against recombinant F. hepatica cathepsin Ls.
Enzyme | Inhibitor | Ki(app) nM | ± | Ki nM | ± |
FhCL1 | Z-Phe-Ala-CHN2 | 31.4 | 0.61 | 1.62 | 0.03 |
FhCL2 | Z-Phe-Ala-CHN2 | 55.2 | 4.3 | 5.32 | 0.42 |
FhCL3 | Z-Phe-Ala-CHN2 | 969.3 | 67.8 | 336.5 | 23.2 |
FhCL1 | Cathepsin K inhibitor II | 12.2 | 0.75 | 0.63 | 0.03 |
FhCL2 | Cathepsin K inhibitor II | 4.8 | 1.0 | 0.46 | 0.09 |
FhCL3 | Cathepsin K inhibitor II | 26.1 | 0.3 | 9.05 | 0.15 |