Results 41 to 50 of about 641,669 (159)

The Photoreaction of the Proton-Pumping Rhodopsin 1 From the Maize Pathogenic Basidiomycete Ustilago maydis

open access: yesFrontiers in Molecular Biosciences, 2022
Microbial rhodopsins have recently been discovered in pathogenic fungi and have been postulated to be involved in signaling during the course of an infection.
Mariafrancesca La Greca   +7 more
doaj   +1 more source

Chimeric Microbial Rhodopsins Containing the Third Cytoplasmic Loop of Bovine Rhodopsin [PDF]

open access: yesBiophysical Journal, 2011
G-protein-coupled receptors transmit stimuli (light, taste, hormone, neurotransmitter, etc.) to the intracellular signaling systems, and rhodopsin (Rh) is the most-studied G-protein-coupled receptor. Rh possesses an 11-cis retinal as the chromophore, and 11-cis to all-trans photoisomerization leads to the protein structural changes in the cytoplasmic ...
Nakatsuma, Aya   +7 more
openaire   +2 more sources

Solid-state NMR for the characterization of retinal chromophore and Schiff base in TAT rhodopsin embedded in membranes under weakly acidic conditions

open access: yesBiophysics and Physicobiology, 2023
TAT rhodopsin extracted from the marine bacterium SAR11 HIMB114 has a characteristic Thr-Ala-Thr motif and contains both protonated and deprotonated states of Schiff base at physiological pH conditions due to the low pKa.
Sui Arikawa   +6 more
doaj   +1 more source

Microbial Rhodopsins: Diversity, Mechanisms, and Optogenetic Applications [PDF]

open access: yesAnnual Review of Biochemistry, 2017
Microbial rhodopsins are a family of photoactive retinylidene proteins widespread throughout the microbial world. They are notable for their diversity of function, using variations of a shared seven-transmembrane helix design and similar photochemical reactions to carry out distinctly different light-driven energy and sensory transduction processes ...
Elena G, Govorunova   +3 more
openaire   +2 more sources

Carotenoid binding in Gloeobacteria Rhodopsin provides insights into divergent evolution of xanthorhodopsin types

open access: yes, 2022
The position of carotenoid in xanthorhodopsin has been elucidated. However, a challenging expression of this opsin and a complex biosynthesis carotenoid in the laboratory hold back the insightful study of this rhodopsin.
CHUON KIMLENG (12247895)   +1 more
core   +1 more source

Mechanism of voltage-sensitive fluorescence in a microbial rhodopsin [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
Microbial rhodopsins were recently introduced as genetically encoded fluorescent indicators of membrane voltage. An understanding of the mechanism underlying this function would aid in the design of improved voltage indicators. We asked, what states can the protein adopt, and which states are fluorescent?
Dougal, Maclaurin   +3 more
openaire   +2 more sources

Functional analysis of A 5' untranslated variant in rhodopsin : implications for the retinitis pigmentosa phenotype [PDF]

open access: yes, 2011
Retinitis Pigmentosa (RP) is a group of heterogeneous retinal degenerative diseases that predominantly affect rod photoreceptor cells. Symptoms include night blindness and gradual peripheral vision loss, which progresses to a complete loss of vision ...
Akinyi, Maureen Veronica
core   +1 more source

The Unlimited Potential of Microbial Rhodopsins as Optical Tools [PDF]

open access: yesBiochemistry, 2019
Microbial rhodopsins, a photoactive membrane protein family, serve as fundamental tools for optogenetics, an innovative technology for controlling biological activities with light. Microbial rhodopsins are widely distributed in nature and have a wide variety of biological functions.
Keiichi Kojima   +2 more
openaire   +3 more sources

Structure of a retinal chromophore of dark-adapted middle rhodopsin as studied by solid-state nuclear magnetic resonance spectroscopy

open access: yesBiophysics and Physicobiology, 2021
Middle rhodopsin (MR) found from the archaeon Haloquadratum walsbyi is evolutionarily located between two different types of rhodopsins, bacteriorhodopsin (BR) and sensory rhodopsin II (SRII). Some isomers of the chromophore retinal and the photochemical
Izuru Kawamura   +8 more
doaj   +1 more source

Ion Channel Properties of a Cation Channelrhodopsin, Gt_CCR4

open access: yesApplied Sciences, 2019
We previously reported a cation channelrhodopsin, Gt_CCR4, which is one of the 44 types of microbial rhodopsins from a cryptophyte flagellate, Guillardia theta.
Shunta Shigemura   +3 more
doaj   +1 more source

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