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. 2012 Jul 5;7(7):e39907. doi: 10.1371/journal.pone.0039907

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Chiu, Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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A: Large kissing hairpin from RNA sequence PDB_00029 similar to the kissing hairpin backbone. (Stem color, blue: major stem; red: minor stem) B: G-ribo ring (magenta) is crossed with kissing stem (green) through the lone pair and the double pair in CRW_00525 (subclass 3D).