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The reaction of sulfite radical anion with nucleic acid components.
Free Radic. Res. 2, 285-288 (1987)
The sulfite radical anion (SO3 -) is the first intermediate in the autoxidation of sulfite to sulfate. Using competition kinetics, its reactivities with the nucleic acid bases and the corresponding nucleosides were investigated. The second order rate constants were found to be rather low, k < 1 × 106dm3mol-1s-1 at pH 7. As a competitor, the carotenoid crocin was used, which was found to be bleached very efficiently by SO3 - (k = 1.0 × 109dm3mol-1S-1).
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Competition Studies ; Crocin ; Nucleic Acid Bases ; Nucleosides ; Pulse Radiolysis ; Rate Constants ; Sulfite Radical
ISSN (print) / ISBN
1071-5762
e-ISSN
1029-2470
Journal
Free Radical Research
Quellenangaben
Volume: 2,
Issue: 4-6,
Pages: 285-288
Publisher
Taylor & Francis
Reviewing status
Peer reviewed
Institute(s)
Institute of Radiation Biology (ISB)