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- W2441844435 abstract "A sensitized photomodification of several single-stranded target DNAs by binary systems of oligonucleotide conjugates complementary to the adjacent regions of DNA was performed. One of the conjugates contained a sensitizer (pyrene, anthracene, or 1,2-benzanthracene), and another conjugate contained a photoreagent 4-azidotetrafluorobenzalhydrazone. The sensitized photomodification is initiated by irradiation at 365-580 nm due to effective energy transfer from the excited sensitizer to the photoreagent in a complementary complex of the binary system with the target DNA where the sensitizer and photoreagent are brought sterically together. Conditions for the quantitative photomodification of a single-stranded DNA by the binary system of oligonucleotide conjugates were found. The maximum degree of photomodification depends on the number of guanosine residues in the (pG)n sequence of the target DNA at the modification site: at n = 1 the yield of covalent adducts was 62-68%, at n = 2, 75-82%, and at n = 4, 98-99%." @default.
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- W2441844435 date "1999-02-01" @default.
- W2441844435 modified "2023-10-18" @default.
- W2441844435 title "[Sensitized photomodification of DNA with binary systems of oligonucleotide conjugates. V. Effect of the structure of the target DNA. Quantitative photomodification]." @default.
- W2441844435 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/10495903" @default.
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