Duality of maximal-torsion and close-packing in double helices

TL;DR

This paper explores a transition in double helices between maximal torsion and optimal packing, discussing implications for DNA denaturation and renaturation.

Contribution

It introduces the concept of a transition between maximal torsion and close-packing in double helices, highlighting a duality relevant to biological processes.

Findings

Identifies a transition point between different helical configurations.

Proposes a duality between maximal torsion and close-packing.

Discusses potential implications for DNA behavior.

Abstract

It is suggested that there is an interesting transition in double helices. The transition is between a helix, which has maximal torsion for the constituting helical strands, and a double helix which is nearly optimally packed illustrated by corresponding dual points on the rope curve. The possible physical relevance for denaturation and renaturation of DNA is discussed.