Research Article

Effect of Ionic Strength on Porphyrin Drugs Interaction with Quadruplex DNA Formed by the Promoter Region of C-myc and Bcl2 Oncogenes

Figure 4

Fluorescence titration curves. 200 nM quadruplex DNA is titrated with 0–1200 nm concentration of three different porphyrin drugs. Stoichiometry is considered at saturation levels. Hence the slop of initial and end points are considered.1: TMPyP4, 2: TMPyP3, and 3: TMPyP2.
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146418.fig.004b
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