Crossref journal-article
Wiley
European Journal of Biochemistry (311)
Abstract

12‐(9‐Anthroyl)stearic acid can be incorporated into mitochondrial membranes. The fluorescence properties of the membrane‐bound probe are different from those of the free molecule. The intensity of emission and fluorescence life‐time of the probe is enhanced when, in the presence of substrate, the electron‐transport chain is reduced. This change in intensity has been demonstrated to be a result of collisional quenching by oxidised ubiquinone in the oxidised membrane but not when the respiratory chain is in the reduced state. In pulsing anaerobic mitochondria with oxygen the rate of the fluorescence change is found to be slower than the rate of ubiquinone oxidation, suggesting that the probe detects a structural transition in the mitochondrial inner membrane. This transition results in a constraint on ubiquinone motion in the reduced system. Model experiments, using lipid dispersions, have been carried out to test some of the interpretations.

Bibliography

CHANCE, B., ERECINSKA, M., & RADDA, G. K. (1975). 12‐(9‐Anthroyl)stearic Acid, a Fluorescent Probe for the Ubiquinone Region of the Mitochondrial Membrane. European Journal of Biochemistry, 54(2), 521–529. Portico.

Authors 3
  1. Britton CHANCE (first)
  2. Maria ERECINSKA (additional)
  3. George K. RADDA (additional)
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Dates
Type When
Created 20 years, 5 months ago (March 3, 2005, 11 a.m.)
Deposited 1 year, 9 months ago (Nov. 23, 2023, 6:21 a.m.)
Indexed 1 year, 9 months ago (Nov. 23, 2023, 12:41 p.m.)
Issued 50 years, 2 months ago (June 1, 1975)
Published 50 years, 2 months ago (June 1, 1975)
Published Online 17 years, 2 months ago (June 28, 2008)
Published Print 50 years, 2 months ago (June 1, 1975)
Funders 0

None

@article{CHANCE_1975, title={12‐(9‐Anthroyl)stearic Acid, a Fluorescent Probe for the Ubiquinone Region of the Mitochondrial Membrane}, volume={54}, ISSN={1432-1033}, url={http://dx.doi.org/10.1111/j.1432-1033.1975.tb04165.x}, DOI={10.1111/j.1432-1033.1975.tb04165.x}, number={2}, journal={European Journal of Biochemistry}, publisher={Wiley}, author={CHANCE, Britton and ERECINSKA, Maria and RADDA, George K.}, year={1975}, month=jun, pages={521–529} }