Table 2. Kinetic parameters for CAD homologues AtCAD2-5, 7, and 8.

	Substrate	Km, μM	Vmax, pKat/μg	kcat, sec-1	kenz, M-1·sec-1
AtCAD4	1	47	44.0	3.44	74,000
	2	87	17.1	1.33	15,000
	3	65	26.8	2.10	32,000
	4	85	32.3	2.52	30,000
	5	274	9.2	0.72	2,600
AtCAD5	1	13	187.3	14.52	1,091,000
	2	68	94.1	7.30	107,000
	3	35	157.4	12.19	348,000
	4	22	106.9	8.28	370,000
	5	20	177.0	13.72	700,000
AtCAD2	1	114	3.3	0.27	2,400
	2	161	22.2	1.81	11,000
	3	452	8.0	0.65	1,400
	4	336	16.4	1.34	4,000
	5	2,161	48.1	3.93	1,800
AtCAD3	1	292	20.1	1.65	5,600
	2	581	9.7	0.80	1,400
	3	362	4.8	0.39	1,100
	4	534	17.9	1.47	2,800
	5	629	9.1	0.74	1,200
AtCAD7	1	320	28.6	2.18	6,800
	2	3,685	79.0	6.04	1,600
	3	675	13.0	0.99	1,500
	4	756	2.7	0.21	280
	5	313	0.6	0.05	150
AtCAD8	1	302	20.4	1.59	5,300
	2	683	7.0	0.54	800
	3	141	5.6	0.44	3,100
	4	457	10.4	0.81	1,800
	5	898	28.9	2.25	2,500