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. 2019 Nov 14;47(22):11921–11930. doi: 10.1093/nar/gkz1008

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© The Author(s) 2019. Published by Oxford University Press on behalf of Nucleic Acids Research.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — Terminal i-motif. (A) Side view of three C-C⁺ base pairs capped by an A10–A10 base pair. The C9–C9⁺ base pair (cyan/black) is intercalated between the dimeric (green/magenta) C1–C1⁺ and C2–C2⁺ base pairs. (B) Top view of the A10–A10 base pair stacking above the C1–C1⁺ base pair. Hydrogen bonds are indicated by gray dashes.