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. Author manuscript; available in PMC: 2012 Jun 14.
Published in final edited form as: Biochemistry. 2011 May 17;50(23):5154–5162. doi: 10.1021/bi200147a

Figure 4.

Figure 4

(A) The representative force curves for rupture events with different rupture lengths obtained for pH 5. All force curves were obtained at the same ALR regime (~34 nN/s) and correspond to rupture forces ~120 pN. (B–E) Histograms of the contour length distributions measured at pH 5 (B), 2.7 (C), 3.7 (D), and 7(E). Each histogram is approximated with four Gaussian curves with centers located around 33 nm (L0), 38 nm (L1), 45 nm (L2), and 53 nm (L3), respectively. The data were collected for the pulling rate range between 0.1 nN/s and 10 nN/s