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. Author manuscript; available in PMC: 2010 Oct 13.
Published in final edited form as: Biochemistry. 2009 Oct 13;48(40):9437–9447. doi: 10.1021/bi900909g

Figure 7. The stimulatory effect of Tween 20 is specific for NTPDase3 and conserved among species.

Figure 7

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.