Biophysical and RNA Interference Inhibitory Properties of Oligonucleotides Carrying Tetrathiafulvalene Groups at Terminal Positions

Autor: Sónia Pérez-Rentero, Alvaro Somoza, Santiago Grijalvo, Jiří Janoušek, Martin Bělohradský, Irena G. Stará, Ivo Starý, Ramon Eritja
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Journal of Chemistry, Vol 2013 (2013)
Druh dokumentu: article
ISSN: 2090-9063
2090-9071
DOI: 10.1155/2013/650610
Popis: Oligonucleotide conjugates carrying a single functionalized tetrathiafulvalene (TTF) unit linked through a threoninol molecule to the 3′ or 5′ ends were synthesized together with their complementary oligonucleotides carrying a TTF, pyrene, or pentafluorophenyl group. TTF-oligonucleotide conjugates formed duplexes with higher thermal stability than the corresponding unmodified oligonucleotides and pyrene- and pentafluorophenyl-modified oligonucleotides. TTF-modified oligonucleotides are able to bind to citrate-stabilized gold nanoparticles (AuNPs) and produce stable gold AuNPs functionalized with oligonucleotides. Finally, TTF-oligoribonucleotides have been synthesized to produce siRNA duplexes carrying TTF units. The presence of the TTF molecule is compatible with the RNA interference mechanism for gene inhibition.
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