Modulation of the midpoint potential of the [2Fe-2S] Rieske iron sulfur center by Qo occupants in the bc1 complex.

Following addition of myxothiazol to antimycin-treated chromatophores from Rhodobacter sphaeroides poised at an ambient redox potential (E(h)) of approximately 300 mV, the amplitude of the flash-induced cytochrome c(1) oxidation in the ms range increased, indicating a decrease in the availability of electrons from the immediate donor to c(1), the Rieske… CONTINUE READING