Journal of Nucleic Acids / 2010 / Article / Fig 5

Research Article

Development of a Novel Fluorescence Assay Based on the Use of the Thrombin-Binding Aptamer for the Detection of -Alkylguanine-DNA Alkyltransferase Activity

Figure 5

Fluorescence intensity of the real-time hAGT assay, measured at excitation and emission wavelengths of 485 nm and 535, respectively. (a) Illustration of the different controls with 5 nM MB-5-O6-MeG-TBA: (1) Positive control of MB-5-O6-MeG-TBA in the absence of hAGT; (2) Intensity in presence of the inactive mutant hAGT-C145S; (3) Decrease in fluorescence when adding 40 nM active hAGT; and (4) basal fluorescence of 5 nM of MB-TBA. (b) Decrease in intensity caused by the activity of hAGT at a range of concentrations (0, 20, 40, and 60 nM), in all of them the basal fluorescence of MB-TBA was subtracted.
632041.fig.005a
(a)
632041.fig.005b
(b)

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