TABLE 2

Values of apparent kinetic parameters Km, Vmax, and Km/Vmax obtained from incubations of dauricine with human recombinant CYP3A4 or CYP3A5 in the presence of NADPH and GSH

GSH conjugate 3 was monitored by LC/MS/MS. The kinetic data of CYP3A4 are adapted from our previous work (Wang et al., 2009).

EnzymeKmVmaxVmax/Km
μMpmol/min/nmol CYPpmol/min/nmol CYP/μM
CYP3A42.5640.315.6
CYP3A517.08.030.47