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. Author manuscript; available in PMC: 2020 Jan 10.
Published in final edited form as: J Phys Chem B. 2018 Dec 31;123(1):21–28. doi: 10.1021/acs.jpcb.8b07501

Figure 2.

Figure 2.

Distortions to the helical geometry of the + strand. We assume that the DNA remains straight after the binding of proteins. Therefore, the axis e3 remains undisturbed. The radius of the helix a changes to a + r, the phase angle ω x changes to ω x + β, and the length of the infinitesimal element dx, shown in black, changes to (1 + ξ) dx.