TABLE 3

Steady-state kinetics for 8-hydroxywarfarin glucuronidation by UGT1A10 and its mutants


Enzyme

Kinetic model

Kinetic Parameters
Vmax
Km
mnol/min/mg protein μM
Wild type Michaelis-Menten 25 (22-28)a 390 (240-530)a
F90A Michaelis-Menten 18 (15-20)a 190 (73-310)
V92A Michaelis-Menten 260 (240-280)a 390 (300-480)
F93A
Michaelis-Menten
69 (63-75)a
304 (220-400)
  • a 95% confidence intervals.