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Simultaneous Incorporation of Modified dU and dC Derivatives in the Growing DNA Chain Using PEX and PCR

Russian Journal of Bioorganic Chemistry volume 46, pages 856–858 (2020)Cite this article

Abstract

The substrate efficiency of modified derivatives of 2'-deoxyuridine-(mod-dUTP) and 2'-deoxycytidine-5'-triphosphates (mod-dCTP) was studied in the regime of simultaneous incorporation using the primer elongation reaction (PEX) and PCR with complete replacement of natural deoxytimidine (dT) and deoxycytidine (dC). Polymerases with missing 3'–5' exonuclease activity were used: Taq and Vent (exo-), as well as natural and constructed DNA templates. DNA fragments modified simultaneously by two types of nucleotides with similar and different functional groups were obtained. Research is important for obtaining aptamers with extended properties.

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Funding

The study was supported by Russian Foundation for Basic Research (project no. 19-04-01217).

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Authors and Affiliations

  1. Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991, Moscow, Russia

    A. V. Chudinov, V. E. Shershov, A. S. Pavlov, O. S. Volkova, V. E. Kuznetsova, A. S. Zasedatelev & S. A. Lapa

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  1. A. V. Chudinov
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  2. V. E. Shershov
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  3. A. S. Pavlov
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  4. O. S. Volkova
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  5. V. E. Kuznetsova
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  6. A. S. Zasedatelev
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  7. S. A. Lapa
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Corresponding author

Correspondence to S. A. Lapa.

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This article does not contain any research involving humans and animals as research objects.

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The authors declare no conflict of interest.

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Abbreviations: mod-dUTP, modified 2'-deoxyuridine-5'-triphosphate; mod-d CTP, modified 2'-deoxycytidine-5'-triphosphate.

Corresponding author: phone: +7 (495) 135-98-00; fax: +7 (495) 135-14-05; e-mail: lapa@biochip.ru.

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Chudinov, A.V., Shershov, V.E., Pavlov, A.S. et al. Simultaneous Incorporation of Modified dU and dC Derivatives in the Growing DNA Chain Using PEX and PCR. Russ J Bioorg Chem 46, 856–858 (2020). https://doi.org/10.1134/S1068162020050064

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  • DOI: https://doi.org/10.1134/S1068162020050064

Keywords:

  • modified nucleotides
  • modified DNA
  • primer extension reaction
  • PCR
  • aptamers