Selectivity of a bromoacridine-containing fluorophore for triplex DNA

Sanjeev Sharma, William Fraser*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Fluorophore 1,8-naphthilamide was linked to 2-bromoacridine through an ethylenediamine spacer using a succinct synthetic route to give a bromoacridine-linked bifunctional fluorophore conjugate for the detection of triplex DNA. Acridine is well known to intercalate into duplex DNA whereas introduction of a bulky bromine atom at position C2 redirects specificity for triplex over duplex DNA. In this work, photoelectron transfer assay was used to demonstrate that the synthesised 2-bromoacridine-linked fluorophore conjugate had good selectivity for the representative triplex DNA target sequence d(T*A.T)20 compared with double-stranded d(T.A)20, single-stranded dT20 or d(G/A)19 DNA sequences.
Original languageEnglish
Pages (from-to)1013-1016
Number of pages4
JournalMonatshefte für Chemier
Issue number8
Early online date7 Aug 2021
Publication statusPublished - Aug 2021

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  • Bisensors
  • Fluorescence spectroscopy
  • Heterocycles
  • Nucleic acids


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