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. 2000 Apr 11;97(8):3971–3976. doi: 10.1073/pnas.97.8.3971

Figure 2.

Figure 2

The Holliday junction structure of d(CCGGTACCGG). (A) Four strands of the sequence assemble into the stacked-X conformation of a four-way junction. The strands are numbered 1 to 10 from the 5′ to the 3′ termini. (B) View along the Holliday junction. Two duplexes, formed by stacking arms D-A over A-B and C-D over B-C, are related by a right-handed twist of 41.4°. (C) Stereoview down the 2-fold axis of the junction. The B and D strands pass from one set of stacked duplexes to the neighboring duplexes.