TABLE 1.

Kinetic parameters in G6PD enzyme activity between some genetic variants against G6PD B (normal).

G6PD Gene	Kinetic parameter
	G6PD activity (% of normal)	KM,G6P (μM)	KM,NADP + (μM)	KI,NADPH (μM)
B	100	38	6.5	7.1
Viangchan	3	105	12	19
Kaiping	3.8	40	3	*
Mahidol	17.2	40	*	*
Canton	14	28	*	*
Gaohe	12	31.5	*	*

*Indicates data that are not available, and the values are assumed similar to G6PD B. Table adapted from Beutler (21) and Coelho et al. (22).