Table IV.

Enzyme Kinetic Parameters of the Glucuronidation for B/W/OA in Various Intestinal Fractions and UGTs (n = 3)

Fraction/UGT	B			W			OA
	V max (nmol/min/mg)	K m (μM)	Clint (×103 μl/min/mg)	V max (nmol/min/mg)	K m (μM)	Clint (×103 μl/min/mg)	V max (nmol/min/mg)	K m (μM)	Clint (×103 μl/min/mg)
HIM	41.9 ± 1.92 (27)	93.9 ± 7.71 (27)	0.446 (27)	5.13 ± 0.16	1.23 ± 0.17	4.17	5.24 ± 0.24	1.04 ± 0.23	5.04
RIS9	6.15 ± 0.85	46.7 ± 10.2	0.131	8.05 ± 0.56	44.0 ± 4.85	0.182	3.87 ± 0.14	9.95 ± 0.96	0.388
1A8	3.17 ± 0.27 (27)	19.5 ± 4.80 (27)	0.163 (27)	8.86 ± 0.54	9.37 ± 1.54	0.945	7.65 ± 0.75	6.96 ± 1.99	1.10
1A10	0.38 ± 0.03	5.40 ± 1.49	0.710	5.21 ± 0.29	12.1 ± 1.61	0.431	7.29 ± 0.33	4.81 ± 0.68	1.52