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A Short, rigid linker between pyrene and guanidiniocarbonyl-pyrrole induced new set of spectroscopic responses to ds-DNA secondary structure (CROSBI ID 213180)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Radić Stojković, Marijana ; Piotrowski, Patryciusz ; Schmuck, Carsten ; Piantanida, Ivo A Short, rigid linker between pyrene and guanidiniocarbonyl-pyrrole induced new set of spectroscopic responses to ds-DNA secondary structure // Organic & biomolecular chemistry, 13 (2015), 1629-1633. doi: 10.1039/c4ob02169j

Podaci o odgovornosti

Radić Stojković, Marijana ; Piotrowski, Patryciusz ; Schmuck, Carsten ; Piantanida, Ivo

engleski

A Short, rigid linker between pyrene and guanidiniocarbonyl-pyrrole induced new set of spectroscopic responses to ds-DNA secondary structure

A novel pyrene-guanidiniocarbonyl-pyrrole dye, characterised by a short, rigid linker between the two chromophores, interacts strongly with ds-DNA but only negligibly with ds-RNA. At neutral conditions the dye shows strong selectivity toward AT-DNA (in respect to GC-DNA). Binding is accompanied by a specific ICD band at 350 nm and fluorescence quenching for all DNA/RNA studied. At pH 5 the affinity of the dye is reversed, now favouring GC-DNA over AT-DNA. A strong emission increase for AT-DNA is observed but quenching for GC-DNA.

guanidiniocarbonyl-pyrrole; pyrene; DNA/RNA binding; fluorescence; CD

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Podaci o izdanju

13

2015.

1629-1633

objavljeno

1477-0520

10.1039/c4ob02169j

Povezanost rada

Kemija

Poveznice
Indeksiranost