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. Author manuscript; available in PMC: 2014 Apr 16.
Published in final edited form as: J Am Chem Soc. 2011 Nov 18;133(49):19878–19888. doi: 10.1021/ja207907d

Figure 1.

Figure 1

(A) Parental unnatural base pairs; (B) linker modified analogs; and (C) α-phosphorothioate variant of d5SICSTP. Sugar and phosphate backbone are omitted for clarity in (A) and (B).