Photoinduced electron transfer detection method for identifying UGT1A1*28 microsatellites.
Journal
PloS one
ISSN: 1932-6203
Titre abrégé: PLoS One
Pays: United States
ID NLM: 101285081
Informations de publication
Date de publication:
2023
2023
Historique:
received:
30
05
2023
accepted:
19
07
2023
medline:
7
8
2023
pubmed:
3
8
2023
entrez:
3
8
2023
Statut:
epublish
Résumé
During development of a novel detection method for the UDP-glucuronosyl transferase 1A1 (UGT1A1)*28, the fluorescence intensity of a dye conjugated to cytosine (C) at the end of a DNA strand decreased upon hybridization with guanine (G). This phenomenon is referred to as photoinduced electron transfer (PeT). Using this phenomenon, we devised a method for the naked-eye detection of UGT1A1*28 (thymine-adenine (TA)-repeat polymorphism). Fluorescently labeled single-stranded DNA (ssDNA) oligonucleotides (probes) were designed and hybridized with complementary strand DNAs (target DNAs). Base pair formation at the blunt end between fluorescently labeled C (probe side) and G (target side), induced dramatic fluorescence quenching. Additionally, when the labeled-CG pair formed near the TA-repeat sequence, different TA-repeat numbers were discriminated. However, obtaining enough target DNA for this probe by typical polymerase chain reaction (PCR) was difficult. To enable the practical use of the probe, producing sufficient target DNA remains problematic.
Identifiants
pubmed: 37535593
doi: 10.1371/journal.pone.0289506
pii: PONE-D-23-16592
pmc: PMC10399816
doi:
Substances chimiques
DNA
9007-49-2
DNA, Complementary
0
DNA, Single-Stranded
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e0289506Informations de copyright
Copyright: © 2023 Tsuchida et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Déclaration de conflit d'intérêts
The authors have declared that no competing interest exist.
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