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. 1984 Feb 10;12(3):1581–1592. doi: 10.1093/nar/12.3.1581

Identification of oligonucleotide fragments produced in a strand scission reaction of the d(C-G-C-G-C-G) duplex by bleomycin.

S Uesugi, T Shida, M Ikehara, Y Kobayashi, Y Kyogoku
PMCID: PMC318600  PMID: 6199743

Abstract

To elucidate the mechanism of DNA strand scission by bleomycin, a d(C-G-C-G-C-G) duplex was treated with the bleomycin-iron ion complex in the presence of H2O2 and degradation products (1, 2, cytosine and deoxyguanosine 5'-phosphate) were identified. 1 and 2 contain a carboxymethyl group attached to the 3'-terminal phosphoryl group of d(C-Gp) and d(C-G-C-Gp), respectively. These compounds were identified by UV, 1H and 31P NMR spectroscopy and paper electrophoresis. 1 was synthesized from the protected dinucleotide and glycolic acid and the proton NMR spectrum was identical to that of 1 obtained as a degradation product. Thus the oligonucleotide fragments produced by the action of bleomycin on DNA were directly identified and cleavage of the C3'-C4' bond of the sugar residues was proved.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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