Table 4

Kinetic parameters for S-oxidations in human liver microsomes

Human Liver	FS →R-FSO		FS →S-FSO		R-FSO → FSO₂		S-FSO → FSO₂
Human Liver	K_M	V_max	V_max/K_M	K_M	V_max	V_max/K_M	K_M	V_max	V_max/K_M	K_M	V_max	V_max/K_M
	μM	pmol/min/ mg protein	ml/min g protien	μM	pmol/min/ mg protein	ml/min/ g protein	μM	pmol/min/ mg protein	ml/min/ g protein	μM	pmol/min/ mg protein	ml/min/ g protein
HL-A	240	310	1.3	38	94	2.5	110	15	0.14	123	15	0.13
HL-B	440	560	1.3	68	115	1.7	81	13	0.16	74	10	0.14
HL-C	87	170	2.0	60	53	0.89	81	9.4	0.12	66	3.9	0.060
Mean	260	350	1.5	55	87	1.4	90	12	0.14	87	9.9	0.11
SD	170	190	0.4	15	32	1.2	16	3	0.02	31	5.8	0.04