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. Author manuscript; available in PMC: 2016 Jun 3.
Published in final edited form as: J Am Chem Soc. 2015 May 18;137(21):6947–6955. doi: 10.1021/jacs.5b03482

Figure 2.

Figure 2

Crystal structure of 16-mer oligonucleotide containing six consecutive Z:P pairs (3/6 ZP) is shown in (A) as a stick rendering with C, green for non-Z:P pairs, yellow for Z, and cyan for P, O in red, nitrogen in blue, phosphorous in orange. (B) The experimental electron density map derived from Br SAD phasing is shown as a blue mesh contoured at 1.5 σ with the final refined structural model as a stick model. The sequence of the oligonucleotide is shown along with numbering scheme employed in the coordinate file.