Abstract
AbstractComplete scanning of correct double‐helical DNA structures was performed in the space of torsion angles using rapid analytical procedures for generation of regular double helices with Watson‐Crick base pairs. Potential energy of structures was calculated by pair‐wise potential functions and used as necessary condition to single out physically meaningful forms. We found 12 discrete potential wells containing these physically meaningful forms, with only one well containing all classical forms (A, B, etc.). On the basis of the new structures listed, alternative models for DNA and DNA‐like polymers and appropriate conformations for fluctuations leading to DNA bending and kink formation are suggested.
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