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. 2003 Oct 31;100(23):13184–13189. doi: 10.1073/pnas.2235011100

Table 1. Kinetic data for the 10 active substrates of GalK variant Y371H.

		Wild type			Y371H
Sugar substrate		K_m, mM	k_cat, min^—1	k_cat/K_m, mM^—1·min^—1	K_m, mM	k_cat, min^—1	k_cat/K_m, M^—1·min^—1
	d-Galactose (14)	2.1	108	51.4	5.6	220	39.3
	2-Deoxy-d-galactose (18)	3.6	30	8.3	4.7	200	42.6
	d-GalNH₂(19)	2.9	11.7	4.0	8.8	260	29.5
	d-Talose (20)	—	—	—	2.9	45.5	15.7
	3-Deoxy-d-galactose (21)	6.4	5.1	0.8	10.1	64.6	6.4
	6-Deoxy-d-galactose (22)	4.9	2.9	0.59	8.0	101	12.6
	6-Amino-d-galactose (23)	—	—	—	21.3	149	7.0
	d-Galacturonic acid (24)	—	—	—	3.2	58	18.1
	l-Altrose (16)	—	—	—	5.2	80	15.4
	l-Glucose (25)	—	—	—	2.7	65	24.1

—, No conversion.