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. Author manuscript; available in PMC: 2017 Sep 8.
Published in final edited form as: J Mol Biol. 2016 Jun 15;428(14):2847–2859. doi: 10.1016/j.jmb.2016.06.002

Fig. 1.

Fig. 1

Structure of the BWYV pseudoknot. (a) Sketch of the crystal structure [32] color-coded according to secondary structures. The black arrows indicate positions at which the external mechanical force is applied. (b) Schematic representation of the secondary structure. Unlike the typical H-type pseudoknot, the two helix stems (S1 and S2) are not coaxially stacked in the BWYV pseudoknot [25]. Tertiary interactions are indicated by red dashed lines.