Table 1.
Michaelis-Menten analysis of USP37wt and USP37mUIM1,2,3 for K11, K48 and K63 di-Ub substrates.
Substrate Enzyme | K11 | K48 | K63 | |||
---|---|---|---|---|---|---|
USP37wt | USP37mUIM1,2,3 | USP37wt | USP37mUIM1,2,3 | USP37wt | USP37mUIM1,2,3 | |
[E] (nM) | 25 | 25 | 1.25 | 1.25 | 12.5 | 12.5 |
Vmax (nM/min) | 285 ± 22 | 108 ± 12 | 17 ± 2.1 | 1.1 ± 0.2 | 20 ± 1.2 | 6.0 ± 0.4 |
kcat (s−1) | 0.19 | 0.072 | 0.23 | 0.015 | 0.027 | 0.008 |
KM (µM) | 11 ± 2.3 | 19 ± 1.2 | 0.40 ± 0.09 | 0.72 ± 0.16 | 1.7 ± 0.08 | 3.6 ± 0.42 |
Vmax and KM values are mean ± SD.