Bend-Induced Twist Waves and the Structure of Nucleosomal DNA.

@article{Skoruppa2018BendInducedTW,
  title={Bend-Induced Twist Waves and the Structure of Nucleosomal DNA.},
  author={Enrico Skoruppa and Stefanos K. Nomidis and John F. Marko and Enrico Carlon},
  journal={Physical review letters},
  year={2018},
  volume={121 8},
  pages={
          088101
        }
}
Recent work indicates that twist-bend coupling plays an important role in DNA micromechanics. Here we investigate its effect on bent DNA. We provide an analytical solution of the minimum-energy shape of circular DNA, showing that twist-bend coupling induces sinusoidal twist waves. This solution is in excellent agreement with both coarse-grained simulations of minicircles and nucleosomal DNA data, which is bent and wrapped around histone proteins in a superhelical conformation. Our analysis… 

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