Document Detail


Reduction of cytochrome c by hydrogen peroxide and its inhibition by superoxide dismutase.
MedLine Citation:
PMID:  6299288     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Ferricytochrome c is slowly converted by hydrogen peroxide to an equilibrium mixture of ferricytochrome c and ferrocytochrome c, and in the process, the hydrogen peroxide is decomposed. The reductant appears to be superoxide anion, produced from the reaction of hydrogen peroxide with oxygen. Because the reduction of ferricytochrome c by hydrogen peroxide is inhibited by superoxide dismutase, we propose that the enzyme acts by converting superoxide anion to a dimerized product that is less active as a reductant.
Authors:
C Bernofsky; S Y Wanda
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Biochemical and biophysical research communications     Volume:  111     ISSN:  0006-291X     ISO Abbreviation:  Biochem. Biophys. Res. Commun.     Publication Date:  1983 Feb 
Date Detail:
Created Date:  1983-04-15     Completed Date:  1983-04-15     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0372516     Medline TA:  Biochem Biophys Res Commun     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  231-8     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Chemical Phenomena
Chemistry
Cytochrome c Group / metabolism*
Hydrogen Peroxide / metabolism*
Oxidation-Reduction
Superoxide Dismutase / metabolism*
Grant Support
ID/Acronym/Agency:
HL-24192/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
0/Cytochrome c Group; 7722-84-1/Hydrogen Peroxide; EC 1.15.1.1/Superoxide Dismutase

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