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. 2014 May 21;42(12):7708–7719. doi: 10.1093/nar/gku417

Figure 7.

Figure 7.

Slow kinetics of incision by hAPE1 of a single AP site located in quadruplex c-myc-AP12. (A) ds-c-myc-AP12 (91 mer) in duplex (left panel) or quadruplex (right panel) DNA conformation; 33 mer, 33 nt long APE1 cleavage product; time points are indicated above each gel picture. (B) Quantitation of the results of three independent hAPE1 experiments. (C) Quantitation of the extent of DNA in duplex or quadruplex structure by BsgI restriction digestion. Broken DNA, 33 mer product generated from cleavage at the AP site during heat denaturation; undigested DNA, 91 mer substrate resistant to BsgI cleavage.