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CT through DNAs of guanine-containing mismatches and A/A, T/T or A/C mismatches. Time profiles of the transient absorption of PTZ•+ at 520 nm during the 355 nm-laser flash ptotolysis of Ar-saturated aqueous solution containing 100 mM NaCl, 20 mM sodium phosphate (pH 7.0) at a strand concentration of 50 μM at 20°C. The represented profiles were obtained from the accumulation of 32 laser shots.
