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  • Title: On the site of function of the Rieske iron-sulfur center in the chloroplast electron transport chain.
    Author: Malkin R, Posner HB.
    Journal: Biochim Biophys Acta; 1978 Mar 13; 501(3):552-4. PubMed ID: 204346.
    Abstract:
    A photosynthetic mutant (strain 1073) of Lemna perpusilla was previously shown to have a block in the electron transport chain between plastoquinone and cytochrome f ((1976) Plant Physiol. 57, 577--579). Electron paramagnetic resonance analysis of chloroplasts from this mutant indicates that the g = 1.89 signal of a reduced iron-sulfur center (the 'Rieske' iron-sulfur center) is absent. The absence of this signal indicates the Rieske center is either absent from or defective in the mutant, and this result is consistent with this iron-sulfur center functioning between plastoquinone and cytochrome f in the electron transport chain of chloroplasts.
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