Energy transfer in the purple membrane of Halobacterium halobium
نویسندگان
چکیده
منابع مشابه
Doubly forbidden second-harmonic generation from isotropic suspensions: Studies on the purple membrane of Halobacterium halobium.
In this paper we report results on second-harmonic generation ~SHG! from aqueous suspensions of the purple membrane of Halobacterium halobium. A detailed theory describing this SHG signal is supported by results for the angular distribution of the harmonic emission and validated by experimental measurements with circularly polarized pump radiation—a condition that normally precludes SHG. Hence ...
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The direction of orientation of the protein bacteriorhodopsin within the purple membrane of Halobacterium halobium has been determined by selected-area electron diffraction of membranes preferentially oriented by adsorption to polylysine. Purple membrane is known to adsorb preferentially to polylysine by its cytoplasmic surface at neutral pH and by its extracellular surface at low pH. To mainta...
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INTRODUCTION .............................................................. 682 PURPLE MEMBRANE ....................................................... 683 BACTEBRIORHODOPSIN: A LIGHT-DRIVEN PUMP FOR PROTONS ..... ..... 686 SECONDARY GRADIENTS: TRANSMEMBRANE MOVEMENTS OF Na+, K', AND Cl................................................................... 689 AMINO ACID TRANSPORT ............... ....
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Halobacterium halobium exhibits an extraordinary degree of spontaneous variability. Mutants which are defective in the formation of gas vacuoles (vac) arise at a frequency of 10(-2). Other easily detectable phenotypes, like the synthesis of bacterioruberin (Rub) or the synthesis of retinal (Ret) and bacterio-opsin (Ops), the two components which form the purple membrane (Pum) of H. halobium, ar...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1978
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(78)85470-8