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Cytochrome C is a Hydrogen Peroxide Scavenger in Mitochondria

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The ability of succinate-cytochrome c reductase (SCR) reduced cytochrome c to scavenge H2O2 was investigated. H2O2, whether added or produced by SCR, was efficiently removed when cytochrome c was reduced by SCR. On the other hand, ferrocytochrome c underwent re-oxidization when H2O2 was added. Thus, these results indicate that cytochrome c reduced by succinate-cytochrome c reductase has the ability to regulate H2O2 in mitochondria.

Keywords: cytochrome; hydrogen peroxide; mitochondria; succinate-cytochrome c reductase

Document Type: Review Article


Publication date: June 1, 2003

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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.

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