Applications of the twist difference to DNA structural analysis.

  title={Applications of the twist difference to DNA structural analysis.},
  author={James Garrett White and William R. Bauer},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={85 3},
The twist is a fundamental geometric property of nucleic acids. Calculation of the twist in the most general case requires detailed specification of the three-dimensional path of each strand, but many important cases may be analyzed by considering only the twist difference. If C1, C2, and C3 are three distinct space curves, the twist difference about C1 is defined as Tw(C3, C1) - Tw(C2, C1). We show here that this difference measures the rotation of the correspondence surface joining C1 to C2… CONTINUE READING

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