Comparison of GdA and GdB activities in Nigerians. A study of the variation of the G6PD activity.

We report a comparison between G6PD enzyme activities in lysates from GdA and GdB Nigerian healthy males. We confirm the previously reported higher mean activity of G6PD B. An analysis of the enzyme activity variation has been performed: the relative amount of variation found to be associated with this polymorphism is about 8%. A comparison has been made with other genetic polymorphisms.