Results 21 to 30 of about 18,496 (258)

Unconventional Roles of Opsins [PDF]

open access: yesAnnual Review of Cell and Developmental Biology, 2017
Rhodopsin is the classical light sensor. Although rhodopsin has long been known to be important for image formation in the eye, the requirements for opsins in non–image formation and in extraocular light sensation were revealed much later. Most recent is the demonstration that an opsin in the fruit fly, Drosophila melanogaster, is expressed in ...
Leung, Nicole Y, Montell, Craig
openaire   +5 more sources

The two-photon reversible reaction of the bistable jumping spider rhodopsin-1 [PDF]

open access: yes, 2019
Bistable opsins are photopigments expressed in both invertebrates and vertebrates. These light-sensitive G-protein-coupled receptors undergo a reversible reaction upon illumination.
Deupi, Xavier   +7 more
core   +1 more source

Tools for Controlling Activity of Neural Circuits Can Boost Gastrointestinal Research [PDF]

open access: yes, 2016
We thank Prof U. G. Knaus and T. C. Collin for critical reading of the manuscript. GA is supported by the European Crohn's and Colitis Organization (ECCO) (J/15/2) and by the National Childrens' Research Centre (K/12/1). GD is supported by the University
Aviello, Gabriella, D'Agostino, Giuseppe
core   +8 more sources

Enhancer/promoter activities of the long/middle wavelength-sensitive opsins of vertebrates mediated by thyroid hormone receptor β2 and COUP-TFII. [PDF]

open access: yesPLoS ONE, 2013
Cone photopigments (opsins) are crucial elements of, and the first detection module in, color vision. Individual opsins have different wavelength sensitivity patterns, and the temporal and spatial expression patterns of opsins are unique and stringently ...
Toshiro Iwagawa   +4 more
doaj   +1 more source

Ultrafast Transient Absorption Spectra and Kinetics of Rod and Cone Visual Pigments

open access: yesMolecules, 2023
Rods and cones are the photoreceptor cells containing the visual pigment proteins that initiate visual phototransduction following the absorption of a photon.
Arjun Krishnamoorthi   +3 more
doaj   +1 more source

Evolutionary ecology of opsin gene sequence, expression and repertoire. [PDF]

open access: yes, 2017
Linking molecular evolution to biological function is a long-standing challenge in evolutionary biology. Some of the best examples of this involve opsins, the genes that encode the molecular basis of light reception.
Owens, Gregory L, Rennison, Diana J
core   +1 more source

Functional characterization of four opsins and two G alpha subtypes co-expressed in the molluscan rhabdomeric photoreceptor

open access: yesBMC Biology, 2023
Background Rhabdomeric photoreceptors of eyes in the terrestrial slug Limax are the typical invertebrate-type but unique in that three visual opsins (Gq-coupled rhodopsin, xenopsin, Opn5A) and one retinochrome, all belonging to different groups, are co ...
Ryota Matsuo   +7 more
doaj   +1 more source

Loss of Melanopsin (OPN4) Leads to a Faster Cell Cycle Progression and Growth in Murine Melanocytes

open access: yesCurrent Issues in Molecular Biology, 2021
Skin melanocytes harbor a complex photosensitive system comprised of opsins, which were shown, in recent years, to display light- and thermo-independent functions.
Leonardo Vinícius Monteiro de Assis   +5 more
doaj   +1 more source

Effect of Altered Retinal Cones/Opsins on Refractive Development under Monochromatic Lights in Guinea Pigs

open access: yesJournal of Ophthalmology, 2018
Purpose. To analyze the changes of refraction and metabolism of the retinal cones under monochromatic lights in guinea pigs. Methods. Sixty guinea pigs were randomly divided into a short-wavelength light (SL) group, a middle-wavelength light (ML) group ...
Leilei Zou   +6 more
doaj   +1 more source

Diversity of Active States in TMT Opsins. [PDF]

open access: yesPLoS ONE, 2015
Opn3/TMT opsins belong to one of the opsin groups with vertebrate visual and non-visual opsins, and are widely distributed in eyes, brains and other internal organs in various vertebrates and invertebrates.
Kazumi Sakai   +3 more
doaj   +1 more source

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