A1 Refereed original research article in a scientific journal
Covalently Mercurated Molecular Beacon for Discriminating the Canonical Nucleobases
Authors: Aro-Heinilä Asmo, Lönnberg Tuomas, Virta Pasi
Publisher: WILEY-V C H VERLAG GMBH
Publication year: 2021
Journal: ChemBioChem
Journal name in source: CHEMBIOCHEM
Journal acronym: CHEMBIOCHEM
Volume: 22
Issue: 2
First page : 354
Last page: 358
Number of pages: 6
ISSN: 1439-4227
eISSN: 1439-7633
DOI: https://doi.org/10.1002/cbic.202000575
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/50712742
Abstract
A highly nucleobase-discriminating metalated nucleoside analogue, 3-fluoro-2-mercuri-6-methylaniline, was incorporated into an oligonucleotide molecular beacon. Fluorescence emission spectra were measured after the addition of four different complementary strands, in which the nucleobase opposite the metalated analogue varies. The fluorescence results showed a clear binding selectivity at room temperature, in the order G>T>C>A. The selectivity is based on the different affinities between the metalated nucleoside analogue and the canonical nucleobases. The synthesized probe is capable of robust discrimination between the two purine as well as the two pyrimidine bases by fluorescence at room temperature, and more sophisticated temperature analysis allows clear separation of every canonical nucleobase. The probe would, hence, be a suitable method for the detection of single nucleotide polymorphisms.
A highly nucleobase-discriminating metalated nucleoside analogue, 3-fluoro-2-mercuri-6-methylaniline, was incorporated into an oligonucleotide molecular beacon. Fluorescence emission spectra were measured after the addition of four different complementary strands, in which the nucleobase opposite the metalated analogue varies. The fluorescence results showed a clear binding selectivity at room temperature, in the order G>T>C>A. The selectivity is based on the different affinities between the metalated nucleoside analogue and the canonical nucleobases. The synthesized probe is capable of robust discrimination between the two purine as well as the two pyrimidine bases by fluorescence at room temperature, and more sophisticated temperature analysis allows clear separation of every canonical nucleobase. The probe would, hence, be a suitable method for the detection of single nucleotide polymorphisms.
Downloadable publication This is an electronic reprint of the original article. |  |
UTU Research Portal