Table 1.

Inhibition constants for EGCG, GA, and EGC for the inhibition of l-idose, HNE, and GSHNE reduction.

		ECGC			GA			EGC
Substrate	Ki’	Ki	Ki/Ki’	Ki’	Ki	Ki/Ki’	Ki’	Ki	Ki/Ki’
L-idose	61 ± 9	425 ± 64	7.0	103 ± 7	n.d.	n.a.	496 ± 35	1239 ± 2 33	2.5
HNE	116 ± 11	n.d.	n.a.	253 ± 23	n.d.	n.a.	686 ± 63	1682 ± 289	2.5
GSHNE	144 ± 22	196 ± 17	1.3	793 ± 102	n.d.	n.a.	n.d.	553 ± 87	n.a.

The values of the constants, expressed in µM, derived from the steady state kinetic analysis of Figure 2, Figure 3, and Figure 4, are reported as the mean ± SD; n.d.: Not detectable; n.a.: Not applicable. K_i and K’_i stand for ^appK_i and ^appK’_i, respectively, as defined in Section 2.6.