Figure 7. The stimulatory effect of Tween 20 is specific for NTPDase3 and conserved among species.
Panel A. Mg-ATPase assay of human, membrane-bound NTPDase isoenzymes in the presence of 0.1% Tween 20. Panel B. Mg-ATPase assay of NTPDase3 from three species in the presence of 0.1% Tween 20. The activities are expressed as the percent control activity measured in the absence of Tween 20. Values represent the mean ± standard deviation from three separate experiments. The dashed horizontal lines indicate no change of activity in the presence of Tween 20.
