Primary photochemical reaction of rhodopsin.
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چکیده
منابع مشابه
Crystallographic analysis of the primary photochemical reaction of squid rhodopsin.
Visual signal transduction is initiated by the photoisomerization of 11-cis retinal upon rhodopsin ligation. Unlike vertebrate rhodopsin, which interacts with Gt-type G-protein to stimulate the cyclic GMP signaling pathway, invertebrate rhodopsin interacts with Gq-type G-protein to stimulate a signaling pathway that is based on inositol 1,4,5-triphosphate. Since the inositol 1,4,5-triphosphate ...
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It was recently found that NOP-1, a membrane protein of Neurospora crassa, shows homology to haloarchaeal rhodopsins and binds retinal after heterologous expression in Pichia pastoris. We report on spectroscopic properties of the Neurospora rhodopsin (NR). The photocycle was studied with flash photolysis and time-resolved Fourier-transform infrared spectroscopy in the pH range 5-8. Proton relea...
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II. Structure and function of rhodopsin and bacteriorhodopsin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294 A. Organization of the proteins in the membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 B. The photobleaching sequence of rhodopsin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297 C. The photocycle of bact...
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Photochemical hole burning has been observed at 1.5 K in bacteriorhodopsin (bR) and bovine rhodopsin at wavelengths spanning their lowest energy electronic absorption bands. Hole widths were -2500 cm-' full width at half-maximum (fwhm) in bacteriorhodopsin and -2400 cm-' fwhm in rhodopsin. The positions of the hole minima were insensitive to bum wavelength, indicating that minimal site selectio...
متن کاملPhotochemical characterization of a novel fungal rhodopsin from Phaeosphaeria nodorum.
Eukaryotic microbial rhodopsins are widespread bacteriorhodopsin-like proteins found in many lower eukaryotic groups including fungi. Many fungi contain multiple rhodopsins, some significantly diverged from the original bacteriorhodopsin template. Although few fungal rhodopsins have been studied biophysically, both fast-cycling light-driven proton pumps and slow-cycling photosensors have been f...
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ژورنال
عنوان ژورنال: Seibutsu Butsuri
سال: 1985
ISSN: 0582-4052,1347-4219
DOI: 10.2142/biophys.25.64