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. 2016 Jun 6;7:11810. doi: 10.1038/ncomms11810

Figure 5. Localized overstretching occurs in torsionally constrained DNA between T2 and T3.

Figure 5

(a) Average FD curve of torsionally constrained DNA in 200 mM MgCl2+50 mM NaCl (black) along with the corresponding second derivative profile (orange). The distance (Δd) between the relative DNA extension at Lc and that at T3 is highlighted. (b) Plot showing how the distance Δd varies as a function of both NaCl (grey) and MgCl2 (purple) concentration. Errors are s.e.m.