Effective Atomic Charges of Canonical 2'-Deoxyribonucleotides and Their Conformational Dependences

Authors

  • T.Yu. Nikolaienko Taras Shevchenko National University of Kyiv, Faculty of Physics
  • L.A. Bulavin Taras Shevchenko National University of Kyiv, Faculty of Physics
  • D.M. Hovorun Taras Shevchenko National University of Kyiv, Faculty of Physics

DOI:

https://doi.org/10.15407/ujpe57.10.1024

Keywords:

-

Abstract

Effective charges for the atoms of canonical 2'-deoxyribonucleotides (the molecules of 5'-deoxycytidylic, 5'-thymidylic, 5'-deoxyadenylic, and 5'-deoxyguanylic acids) averaged over all of their possible conformers and the corresponding root-mean-square deviations have been obtained. It is shown that the charge deviations for carbon atoms can exceed the average values of the charge itself. A capability of reproducing the conformer dipole moments with the use of averaged charges has been analyzed. It is found that the neglect of the dependence of effective atomic charges on the molecule conformation may result in errors for the dipole moment magnitude exceeding 100%. The results obtained can be used for the improvement of electrostatic components in the existing force fields.

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Published

2021-12-05

How to Cite

Nikolaienko Т., Bulavin Л., & Hovorun Д. (2021). Effective Atomic Charges of Canonical 2’-Deoxyribonucleotides and Their Conformational Dependences. Ukrainian Journal of Physics, 57(10), 1024. https://doi.org/10.15407/ujpe57.10.1024

Issue

Section

Soft matter

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