The quantum efficiency of the bacteriorhodopsin photocycle
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چکیده
منابع مشابه
assessment of the efficiency of s.p.g.c refineries using network dea
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Protein conformational changes in the bacteriorhodopsin photocycle.
We report a comprehensive electron crystallographic analysis of conformational changes in the photocycle of wild-type bacteriorhodopsin and in a variety of mutant proteins with kinetic defects in the photocycle. Specific intermediates that accumulate in the late stages of the photocycle of wild-type bacteriorhodopsin, the single mutants D38R, D96N, D96G, T46V, L93A and F219L, and the triple mut...
متن کاملA correlation between proton pumping and the bacteriorhodopsin photocycle.
In an attempt to establish a relationship between proton pumping and the photocycle intermediates of bacteriorhodopsin, we have studied the effects of pH and temperature on flash-induced proton pumping and the photointermediates O640 and M412. The relative quantum yield of flash-induced proton pumping is both pH and temperature dependent. It is high in the acid pH range and at low temperatures ...
متن کاملEarly picosecond events in the photocycle of bacteriorhodopsin.
The primary processes of the photochemical cycle of light-adapted bacteriorhodopsin (BR) were studied by various experimental techniques with a time resolution of 5 x 10(-13) s. The following results were obtained. (a) After optical excitation the first excited singlet state S(1) of bacteriorhodopsin is observed via its fluorescence and absorption properties. The population of the excited singl...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1977
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(77)85635-x