An Electrochemical Study of DNA and RNA Short Fragments by Elimination Voltammetry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F10%3A00051671" target="_blank" >RIV/00216224:14310/10:00051671 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

An Electrochemical Study of DNA and RNA Short Fragments by Elimination Voltammetry

Popis výsledku v původním jazyce

Short oligonucleotides play an important role in many biological processes including triplet repeat expansion associated with neurodegenerative diseases (fragile X syndrome, Huntington?s disease, Friedreich?s ataxia or myoclonic epilepsy) [1]. One of themost stable DNA fragments, which forms hairpin, is heptamer d(GCGAAGC) [2]. In our electrochemical study we analyzed not only this hairpin but also DNA and RNA fragments containing self-complementary nucleobases (GC) forming the stem. Both DNA and RNA analogues adsorbed on mercury electrodes provided voltammetric reduction signals of adenine and cytosine (A and C) and oxidation signals of guanine (G). We found significant differences between DNA and RNA fragments depending on their length, sequence, and pH (Fig. 1). For the resolution of A and C reduction signals and evaluation of the nature of anodic processes of the G signal in both DNA and RNA fragments, elimination voltammetry with linear scan (EVLS) was utilized [3,4].

Název v anglickém jazyce

An Electrochemical Study of DNA and RNA Short Fragments by Elimination Voltammetry

Popis výsledku anglicky

Short oligonucleotides play an important role in many biological processes including triplet repeat expansion associated with neurodegenerative diseases (fragile X syndrome, Huntington?s disease, Friedreich?s ataxia or myoclonic epilepsy) [1]. One of themost stable DNA fragments, which forms hairpin, is heptamer d(GCGAAGC) [2]. In our electrochemical study we analyzed not only this hairpin but also DNA and RNA fragments containing self-complementary nucleobases (GC) forming the stem. Both DNA and RNA analogues adsorbed on mercury electrodes provided voltammetric reduction signals of adenine and cytosine (A and C) and oxidation signals of guanine (G). We found significant differences between DNA and RNA fragments depending on their length, sequence, and pH (Fig. 1). For the resolution of A and C reduction signals and evaluation of the nature of anodic processes of the G signal in both DNA and RNA fragments, elimination voltammetry with linear scan (EVLS) was utilized [3,4].

Druh

O - Ostatní výsledky

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/LC06035" target="_blank" >LC06035: Centrum biofyzikální chemie, bioelektrochemie a bioanalýzy. Nové nástroje pro genomiku, proteomiku a biomedicínu.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů