Photosynthetic diode: electron transport rectification by wetting the quinone cofactor
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چکیده
منابع مشابه
Photosynthetic diode: electron transport rectification by wetting the quinone cofactor.
We report 11 μs of molecular dynamics simulations of the electron-transfer reaction between primary and secondary quinone cofactors in the bacterial reaction center. The main question addressed here is the mechanistic reason for unidirectional electron transfer between chemically identical cofactors. We find that electron is trapped at the secondary quinone by wetting of the protein pocket foll...
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Quinone, Photosynthetic Electron Transport, Inhibitor UHDBT (5-«-undecyl-6-hydroxy-4,7-dioxobenzothiazole) is an efficient inhibitor of photosyn thetic electron transport in chloroplasts from spinach (pl50-value = 7.61) and the green alga Chlamydomonas reinhardii. At low concentrations of UHDBT its site of inhibition is located at the reducing side of plastoquinone, identical to that of 3-(3,4...
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Various monoand diazaphenanthrenes were prepared and assayed for their activity as inhibi tors of photosynthetic electron flow in isolated chloroplasts in order to get more insight into the mechanism of action of the well known inhibitor o-phenanthroline = 1,10-diazaphenanthrene. The results show that 1-, 4and 5-azaphenanthrene are only slightly less active than 1,10-diazaphenanthrene. In the ...
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Electrochemical characterization of topa quinone (6-hydroxydopa quinone), the organic cofactor of copper-containing amine oxidases, has been performed with the aid of spectroscopy and ab initio energy minimization technique. Topa quinone exhibits a totally reversible cyclic voltammogram at a mercury electrode, which is ascribed to a two-step one-electron conversion between topa quinone and topa...
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ژورنال
عنوان ژورنال: Physical Chemistry Chemical Physics
سال: 2015
ISSN: 1463-9076,1463-9084
DOI: 10.1039/c5cp03397g