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Conformational analysis of double-helical polynucleotides

✍ Scribed by V. E. Khutorsky; V. I. Poltev

Book ID
104579577
Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
280 KB
Volume
16
Category
Article
ISSN
0020-7608

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✦ Synopsis

Abstract

The intramolecular interaction energy of the regular double‐helical polynucleotide as a function of variables that determine the mutual position of base pairs and sugar pucker was calculated using atom–atom potentials. The calculations showed the existence of two valley‐like regions with minimal values on the energetic surface. One of them corresponds to the A family of nucleic acids, the other to the B family. The points that correspond to the models constructed by means of x‐ray data are placed in a conformational space near the lines that describe the position of the bottom of the valleys.

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