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Interactions of the dimethyldiazaperopyrenium dication with nucleic acids. 1. Binding to nucleic acid components and to single-stranded polynucleotides and photocleavage of single-stranded oligonucleotides. 1989

A Slama-Schwok, and J Jazwinski, and A Béré, and T Montenay-Garestier, and M Rougée, and C Hélène, and J M Lehn
Chimie des Interactions Moléculaires, Collège de France, Paris.

The binding of dimethyldiazaperopyrenium dication (1) with nucleosides, nucleotides, and single-stranded polynucleotides has been studied by photophysical methods. It has been shown that 1 may be a potential selective fluorescent probe for A- and/or T-rich polynucleotides. 1 efficiently cleaves oligonucleotides at guanine sites, under illumination with visible light, and therefore may be used as a sequence-specific artificial photonuclease.

UI MeSH Term Description Entries
D009696 Nucleic Acids High molecular weight polymers containing a mixture of purine and pyrimidine nucleotides chained together by ribose or deoxyribose linkages. Nucleic Acid,Acid, Nucleic,Acids, Nucleic
D010777 Photochemistry A branch of physical chemistry which studies chemical reactions, isomerization and physical behavior that may occur under the influence of visible and/or ultraviolet light. Photochemistries
D011119 Polynucleotides BIOPOLYMERS composed of NUCLEOTIDES covalently bonded in a chain. The most common examples are DNA and RNA chains. Polynucleotide
D011806 Quinolinium Compounds Compounds, Quinolinium
D005456 Fluorescent Dyes Chemicals that emit light after excitation by light. The wave length of the emitted light is usually longer than that of the incident light. Fluorochromes are substances that cause fluorescence in other substances, i.e., dyes used to mark or label other compounds with fluorescent tags. Flourescent Agent,Fluorescent Dye,Fluorescent Probe,Fluorescent Probes,Fluorochrome,Fluorochromes,Fluorogenic Substrates,Fluorescence Agents,Fluorescent Agents,Fluorogenic Substrate,Agents, Fluorescence,Agents, Fluorescent,Dyes, Fluorescent,Probes, Fluorescent,Substrates, Fluorogenic
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D001665 Binding Sites The parts of a macromolecule that directly participate in its specific combination with another molecule. Combining Site,Binding Site,Combining Sites,Site, Binding,Site, Combining,Sites, Binding,Sites, Combining
D013053 Spectrophotometry The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.

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