The superoxide anion as electron donor to the mitochondrial electron transport chain

Ninnemann, H.; Strasser, Reto; Butler, Warren L.

doi:10.1111/j.1751-1097.1977.tb07446.x

Scientific article

English

The superoxide anion as electron donor to the mitochondrial electron transport chain

ContributorsNinnemann, H.; Strasser, Reto; Butler, Warren L.

Published inPhotochemistry and photobiology, vol. 26, no. 1, p. 41-47

Publication date1977-07

Abstract

In isolated respiratory multienzyme complexes of beef heart mitochondria the b-type cytochromes can be photoreduced in presence of flavin via the superoxide anion. O^-₂ does not reduce cytochrome c₁. In an anaerobic system, FMNH₂ formed by irradiation with blue light in presence of EDTA reduces cytochromes b and c₁ The possible implication of O^-₂ in the electron transfer from flavin/flavoprotein to cytochrome b in blue light-controlled biological processes is discussed.

Keywords

Animals
Cattle
Electron Transport / radiation effects
Heart / radiation effects
In Vitro Techniques
Light
Mitochondria, Muscle / metabolism
Mitochondria, Muscle / radiation effects
Myocardium / ultrastructure
Oxygen
Superoxides

Affiliation Not a UNIGE publication

Citation (ISO format)

NINNEMANN, H., STRASSER, Reto, BUTLER, Warren L. The superoxide anion as electron donor to the mitochondrial electron transport chain. In: Photochemistry and photobiology, 1977, vol. 26, n° 1, p. 41–47. doi: 10.1111/j.1751-1097.1977.tb07446.x

Article (Published version)

Identifiers

PID : unige:178121
DOI : 10.1111/j.1751-1097.1977.tb07446.x
PMID : 197553

ISSN of the journal0031-8655

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The superoxide anion as electron donor to the mitochondrial electron transport chain

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