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The mechanism of cytochrome c reduction by alkyl radicals. Evidence for multiple reaction pathways.
Free Radic. Res. 6, 251-256 (1989)
The reactions of the hydroxyalkyl radicals CH2OH and (CH3), COH with oxidized cytochrome c are far more complex than previously reported. Analysis of the pulse-radiolytic data by kinetic modelling revealed that only about 40% of the alkyl radicals reduce the ferric iron chromophore. Altogether. four different reactions have to be considered for the disappearance of the alkyl radicals. only two of which affect the metal site. The data show that these radicals. similar to the much more reactive hydrated electrons and hydrogen atoms. are capable to react with biological macromolecules in diverse ways.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Hydroxyalkyl Radicals ; Isopropanol ; Kinetic Modelling ; Methanol ; Pulse Radiolysis ; Rate Constants
ISSN (print) / ISBN
1071-5762
e-ISSN
1029-2470
Zeitschrift
Free Radical Research
Quellenangaben
Band: 6,
Heft: 4,
Seiten: 251-256
Verlag
Taylor & Francis
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Radiation Biology (ISB)