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• W1996007908 endingPage "3620" @default.
• W1996007908 startingPage "3611" @default.
• W1996007908 abstract "Oligonucleotide conjugates bearing two pyrene residues attached to 5′-phosphate through a phosphoramide bond were synthesised. Fluorescence spectra of the conjugates show a peak typical of monomer emission (λmax 382 nm) and a broad emission peak with λmax 476 nm, which indicates the excimer formation between the two pyrene residues. Conjugation of these two pyrene residues to the 5′‐phosphate of oligonucleotides does not affect the stabilities of heteroduplexes formed by conjugates with the corresponding linear strands. A monomer fluorescence of the conjugates is considerably affected by the heteroduplex formation allowing the conjugates to be used as fluorescent hybridisation probes. The 5′-bis-pyrenylated oligonucleotides have been successfully used for investigation of affinity and kinetics of antisense oligonucleotides binding to the multidrug resistance gene 1 (PGY1/MDR1) mRNA. The changes of excimer fluorescence of the conjugates occurring during hybridisation depended on the structure of the binding sites: hybridisation to heavily structured parts of RNA resulted in quenching of the excimer fluorescence, while binding to RNA regions with a loose secondary structure was accompanied by an enhancement of the excimer fluorescence. Potentially, these conjugates may be considered as fluorescent probes for RNA structure investigation." @default.
• W1996007908 created "2016-06-24" @default.
• W1996007908 creator A5000791014 @default.
• W1996007908 date "2001-09-01" @default.
• W1996007908 modified "2023-09-30" @default.
• W1996007908 title "5'-bis-pyrenylated oligonucleotides displaying excimer fluorescence provide sensitive probes of RNA sequence and structure" @default.
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• W1996007908 doi "https://doi.org/10.1093/nar/29.17.3611" @default.
• W1996007908 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/55892" @default.
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• W1996007908 hasPublicationYear "2001" @default.
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