Electroanalysis of unnatural base pair content in plasmid DNA generated in a semi-synthetic organism

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Publikace nespadá pod Ústav výpočetní techniky, ale pod Středoevropský technologický institut. Oficiální stránka publikace je na webu muni.cz.
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ŠPAČEK Jan FOJTA Miroslav

Rok publikování 2020
Druh Článek v odborném periodiku
Časopis / Zdroj Electrochimica Acta
Fakulta / Pracoviště MU

Středoevropský technologický institut

Citace
www https://www.sciencedirect.com/science/article/pii/S0013468620316911?via%3Dihub
Doi http://dx.doi.org/10.1016/j.electacta.2020.137298
Klíčová slova Electrochemistry; Semi-synthetic organism; Unnatural base pair; Catalytic hydrogen evolution; Mercury electrode
Popis While standard Watson-Crick base pairing normally involves hydrogen bonds that join size complemen-tary nitrogenous heterocycles, certain unnatural base pairs (UBP) can support replication, transcription, and translation, including these in semi-synthetic organisms (SSO), using size complementarity alone. In this paper we show that the UBPs can be analyzed electrochemically as components of riboor 2'-deoxyribonucleosides, corresponding (2'-deoxy)triphosphates, as well as incorporated into DNA. Here, performance of the electrochemical methods profits from the ability of the unnatural bases 5SICS and TPT3 adsorbed at the surface of a mercury electrode to catalyze hydrogen evolution in acidic media. This allows semi-quantitative detection of single UBP within plasmid DNA generated in a SSO. This electrochemical approach provides new way for direct, fast, and low cost UBP analysis and can supplement or replace currently used methods of UBP detection. (C) 2020 Elsevier Ltd. All rights reserved.
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