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. Author manuscript; available in PMC: 2011 Oct 19.
Published in final edited form as: Biochemistry. 2010 Oct 19;49(41):8978–8987. doi: 10.1021/bi101021e

Figure 1.

Figure 1

Chemical structure of a stable AP site Tetrahydrofuran (THF) residue, and DNA sequences of the (AP)2−3 duplex and the (AP)2+3 duplex. AP residues are denoted by the letter F.