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. 2003 Jul 11;100(15):8654–8659. doi: 10.1073/pnas.1133178100

Fig. 5.

Fig. 5.

Comparison of crossing segment juxtaposition angles in supercoiled, braided, and catenated DNA. (A) We define the angle of juxtaposed crossing segments (θ) for braids in Fig. 1C and analogously for supercoiled and catenated DNA. The angular distribution between juxtaposed segments of DNA in simulated 3.5-kb (+) supercoiled (σ =+0.05, green circles) and (–) supercoiled (σ = –0.05, red circles) DNA under no force is plotted along with the angular distribution between juxtaposed segments of DNA in simulated left-handed (σbr = –0.05, green triangles) and right-handed (σbr = +0.05, red triangles) braids of 3.5-kb nicked DNAs held under 1 pN of tension. For comparison, the distribution of crossing angles between randomly juxtaposed segments is shown (dashed black line). The vertical solid black line is at θ = 57°. (B) The angular distribution between juxtaposed segments of DNA in simulated DNA catenanes with σcat = 0.045 (red squares), 0.036 (red triangles), 0.024 (red circles), and 0.012 (green circles). The distribution of crossing angles between randomly juxtaposed segments is shown (dashed black line). The vertical solid black line corresponds to θ = 57°.