Kinetic parameters of leukocyte proteases for cleavage of rFRETS-VWF73
Construct . | kcat, s−1 . | km, ×10−6 M . | kcat/km, 106 M−1s−1 . |
---|---|---|---|
ADAMTS13 | 4.43 ± 0.52 | 5.81 ± 1.61 | 0.76 |
Elastase | 2.97 ± 0.43 | 1.16 ± 0.65 | 1.70 |
Cathepsin G | 4.99 ± 0.39 | 0.76 ± 0.27 | 6.57 |
PR3 | 12.07 ± 1.18 | 2.56 ± 0.78 | 4.71 |
MMP9 | 2.02 ± 0.48 | 4.80 ± 0.82 | 0.42 |
Construct . | kcat, s−1 . | km, ×10−6 M . | kcat/km, 106 M−1s−1 . |
---|---|---|---|
ADAMTS13 | 4.43 ± 0.52 | 5.81 ± 1.61 | 0.76 |
Elastase | 2.97 ± 0.43 | 1.16 ± 0.65 | 1.70 |
Cathepsin G | 4.99 ± 0.39 | 0.76 ± 0.27 | 6.57 |
PR3 | 12.07 ± 1.18 | 2.56 ± 0.78 | 4.71 |
MMP9 | 2.02 ± 0.48 | 4.80 ± 0.82 | 0.42 |
The data represent the means and SD of at least 3 independent experiments.
kcat indicates catalytic constant equal to Vmax/[E]; and km, Michaelis-Menten constant.