Indophenol Dyes as Catalysts and Uncouplers of Photophosphorylation
نویسندگان
چکیده
منابع مشابه
Effect of Inhibitors and Uncouplers on the Separate Light and Dark Reactions in Photophosphorylation.
The existenice of a nonphosphorylated. highenergy intermediate was observed in bacterial oxidative phosphorylation, and its formation was shown to be coupled to the transport of electrons (14, 15). In chloroplasts, however, such intermediates were only postulated in the past, on the basis of analogy with the system of oxidative phosphorylation. Recenitly, 2 independent groups observed such inte...
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Photophosphorylation by the chloroplast is postulated to require electron flow through the electron transport chain between the weak reductant of Light Reaction II and the oxidant of Light Reaction I (terminology according to Duysens, Amesz, and Kamp (1)). This investigation was initiated to find reagents that could react chemically as electron donors with components of the electron transport c...
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The oxidizing ability of organic dyes is enhanced significantly by photoexcitation. Radical cations of weak electron donors can be produced by electron transfer from the donors to the excited states of organic dyes. The radical cations thus produced undergo bond formation reactions with various nucleophiles. For example, the direct oxygenation of benzene to phenol was made possible under visibl...
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Uncouplers of oxidative phosphorylation in mitochondria inhibit the coupling between the electron transport and phosphorylation reactions and thus inhibit ATP synthesis without affecting the respiratory chain and ATP synthase (H(+)-ATPase). Miscellaneous compounds are known to be uncouplers, but weakly acidic uncouplers are representative because they show very potent activities. The most poten...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1963
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)68011-7