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. 2021 Aug 6;8:718587. doi: 10.3389/fmolb.2021.718587

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Copyright © 2021 Xie, Karki, Chen, Liu and Li.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Electrostatic potential on surfaces of DNA and UDG. (A) DNA structure orange base at location B5 flips out to the pocket due to UDG mechanism. (B) The electrostatic potential on the surface of DNA. (C) UDG enzyme structure (pocket side) and the residues of the binding pocket are colored in pink. (D) The electrostatic potential on the surface of UDG front side and the black square is the pocket area. (E) UDG enzyme structure (non-pocket side) and the residues of the binding pocket are colored in pink. (F) The electrostatic potential on the surface of UDG non-pocket side. In figures BDF, the negatively and positively charged areas are colored in red and blue, respectively.