Ligation, inhibition, and activation of cytochrome c oxidase by fatty acids.


Free fatty acids bind to beef heart cytochrome c oxidase and induce spectral shifts similar to those obtained with high spin ligands. Oleic (18:1(n-9)) and linoleic (18:2(n-6)) acids induce substantial blue shifts of the Soret peak of oxidized enzyme. Small saturated fatty acids (< 15 carbon atoms) shift the Soret peak to the red, and longer chain acids… (More)


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