Results 11 to 20 of about 6,500 (214)

Vision using multiple distinct rod opsins in deep-sea fishes. [PDF]

Science, 2019
AbstractVertebrate vision is accomplished through a set of light-sensitive photopigments, which are located in the photoreceptors of the retina and consist of a visual opsin protein bound to a chromophore. In dim-light, vertebrates generally rely upon a single rod opsin (RH1) for obtaining visual information.
Musilova Z, Cortesi F, Matschiner M, Davies WIL, Patel JS, Stieb SM, de Busserolles F, Malmstrøm M, Tørresen OK, Brown CJ, Mountford JK, Hanel R, Stenkamp DL, Jakobsen KS, Carleton KL, Jentoft S, Marshall J, Salzburger W.   +17 more
europepmc   +9 more sources

Rod monochromacy and the coevolution of cetacean retinal opsins. [PDF]

PLoS Genetics, 2013
Cetaceans have a long history of commitment to a fully aquatic lifestyle that extends back to the Eocene. Extant species have evolved a spectacular array of adaptations in conjunction with their deployment into a diverse array of aquatic habitats ...
Robert W Meredith, John Gatesy, Christopher A Emerling, Vincent M York, Mark S Springer   +4 more
doaj   +4 more sources

A novel rod‐like opsin isolated from the extra‐retinal photoreceptors of teleost fish

FEBS Letters, 2000
We have isolated a novel opsin from the pineal complex of Atlantic salmon (Salmo salar) and from the brain of the puffer fish (Fugu rubripes). These extra‐retinal opsins share approximately 74% identity at the nucleotide and amino acid level with rod‐opsins from the retina of these species.
Philp, A, Bellingham, J, Garcia-Fernandez, J, Foster, R.   +3 more
openaire   +5 more sources

Opsins as main regulators of skin biology

Journal of Photochemistry and Photobiology, 2023
Opsins are light-sensitive proteins that are found across the animal kingdom. In mammals, opsins are classically associated with image-forming processes, a function exerted by cone and rod opsins.
Ana Maria de Lauro Castrucci, Maurício S. Baptista, Leonardo Vinicius Monteiro de Assis   +2 more
doaj   +1 more source

From Embryo to Adult Life: Differential Expression of Visual Opsins in the Flatfish Solea senegalensis Under Different Light Spectra and Photoperiods

Frontiers in Marine Science, 2022
Visual photoreceptors in fish are usually adjusted to the light environment to ensure the highest efficiency and best adaptation. In the Senegalese sole, metamorphosis determines migration from pelagic to benthic habitats, with marked differences in both
Sara Frau, José A. Paullada-Salmerón, José A. Paullada-Salmerón, José A. Paullada-Salmerón, Isabella Paradiso, Mairi E. Cowan, Mairi E. Cowan, Águeda J. Martín-Robles, Águeda J. Martín-Robles, Águeda J. Martín-Robles, José A. Muñoz-Cueto, José A. Muñoz-Cueto, José A. Muñoz-Cueto   +12 more
doaj   +1 more source

Identification of additional outer segment targeting signals in zebrafish rod opsin [PDF]

Journal of Cell Science, 2021
ABSTRACT In vertebrate photoreceptors, opsins are highly concentrated in a morphologically distinct ciliary compartment known as the outer segment (OS). Opsin is synthesized in the cell body and transported to the OS at a remarkable rate of 100 to 1000 molecules per second.
Xiaoming Fang, Andrew A. Peden, Fredericus J. M. van Eeden, Jarema J. Malicki   +3 more
openaire   +2 more sources

Palmitoylation stabilizes unliganded rod opsin [PDF]

Proceedings of the National Academy of Sciences, 2010
S-palmitoylation is a conserved feature in many G protein–coupled receptors (GPCRs) involved in a broad array of signaling processes. The prototypical GPCR, rhodopsin, is S-palmitoylated on two adjacent C-terminal Cys residues at its cytoplasmic surface.
Akiko, Maeda, Kiichiro, Okano, Paul S-H, Park, Janis, Lem, Rosalie K, Crouch, Tadao, Maeda, Krzysztof, Palczewski   +6 more
openaire   +2 more sources

Spectral tuning and deactivation kinetics of marine mammal melanopsins

PLoS ONE, 2021
In mammals, the photopigment melanopsin (Opn4) is found in a subset of retinal ganglion cells that serve light detection for circadian photoentrainment and pupil constriction (i.e., mydriasis).
Jeffry I. Fasick, Haya Algrain, Courtland Samuels, Padmanabhan Mahadevan, Lorian E. Schweikert, Zaid J. Naffaa, Phyllis R. Robinson   +6 more
doaj   +3 more sources

TMT-Opsins differentially modulate medaka brain function in a context-dependent manner.

PLoS Biology, 2021
Vertebrate behavior is strongly influenced by light. Light receptors, encoded by functional opsin proteins, are present inside the vertebrate brain and peripheral tissues.
Bruno M Fontinha, Theresa Zekoll, Mariam Al-Rawi, Miguel Gallach, Florian Reithofer, Alison J Barker, Maximilian Hofbauer, Ruth M Fischer, Arndt von Haeseler, Herwig Baier, Kristin Tessmar-Raible   +10 more
doaj   +1 more source

Molecular evidence that only two opsin subfamilies, the blue light- (SWS2) and green light-sensitive (RH2), drive color vision in Atlantic cod (Gadus morhua). [PDF]

PLoS ONE, 2014
Teleosts show a great variety in visual opsin complement, due to both gene duplication and gene loss. The repertoire ranges from one subfamily of visual opsins (scotopic vision) including rod opsin only retinas seen in many deep-sea species to multiple ...
Ragnhild Valen, Rolf Brudvik Edvardsen, Anne Mette Søviknes, Øyvind Drivenes, Jon Vidar Helvik   +4 more
doaj   +1 more source