J 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.