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. Author manuscript; available in PMC: 2008 Sep 22.
Published in final edited form as: Biochemistry. 2006 Mar 7;45(9):2836–2844. doi: 10.1021/bi051644s

Figure 1.

Figure 1

DNA substrates. 2-Aminopurine was placed in the templating, +1 position (A) or in the +2 position (B). The primers were either extendable and have a 3'-OH group or are terminated by a 2', 3'-dideoxynucleotide (dd). The structures of dTTP and dFTP are illustrated (A).