2023
Interfacial behaviour of oligodeoxynucleotides prone to G-quadruplex formation on negatively charged electrode surface monitored by electrochemical probes
DOBROVODSKÝ, Daniel, Aleš DAŇHEL, Emmanuelle MOTHES-MARTIN, Genevieve PRATVIEL, Daniel RENČIUK et. al.Základní údaje
Originální název
Interfacial behaviour of oligodeoxynucleotides prone to G-quadruplex formation on negatively charged electrode surface monitored by electrochemical probes
Autoři
DOBROVODSKÝ, Daniel (703 Slovensko, domácí), Aleš DAŇHEL (203 Česká republika), Emmanuelle MOTHES-MARTIN (250 Francie), Genevieve PRATVIEL (250 Francie), Daniel RENČIUK (203 Česká republika), Jean-Louis MERGNY (250 Francie) a Miroslav FOJTA (203 Česká republika, garant)
Vydání
Electrochimica Acta, Elsevier, 2023, 0013-4686
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10405 Electrochemistry
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 6.600 v roce 2022
Kód RIV
RIV/00216224:14310/23:00130873
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000923609000001
Klíčová slova anglicky
DNA; Adsorption; G-quadruplex; Porphyrin; Voltammetry
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 21. 6. 2023 14:52, Mgr. Marie Šípková, DiS.
Anotace
V originále
Development of analytical tools enabling discrimination amongst various structures of nucleic acids attracts interest due to diverse biological functions and prospective biotechnological applications of the latter. In this work, two electrochemically active compounds, copper porphyrin complex Cu-TMPy2PP and base-modified deoxyguanosine triphosphate conjugate bearing 3-nitrophenyl moiety (dGNPTP), were used as probes to study electrode potential effects on oligodeoxynucleotides (ODNs) of various sequences and abilities to form secondary structures (including unstructured single strands, duplexes, guanine quadruplexes, i-motifs) at the surface of hanging mercury drop electrode (HMDE). Our experiments revealed formation of less dense adsorbed layers by G-rich ODNs with the propensity to fold into G-quadruplexes (G4), compared to layers formed by other studied sequences. Strikingly, the G4-forming ODNs were significantly more susceptible to desorption from the HMDE surface during its polarization to highly negative potentials compared to other ODNs. Negative potential-induced desorption of the ODNs from HMDE was further confirmed by gel electrophoresis. Application of the electro-chemical probes offers a useful method for further research of DNA conformations and transitions taking place in solution and at electrically charged surfaces.