Results 31 to 40 of about 15,921 (237)

Taxonomic distribution of opsin families inferred from UniProt Reference Proteomes and a suite of opsin-specific hidden Markov models

open access: yesFrontiers in Ecology and Evolution, 2023
IntroductionOpsins are a large and sequence-diverse family of light-responsive G-protein coupled receptors involved in vision, circadian rhythm, and other processes.
Neil D. Clarke, John S. Taylor
doaj   +1 more source

Opsin expression predicts male nuptial color in threespine stickleback. [PDF]

open access: yes, 2018
Theoretical models of sexual selection suggest that male courtship signals can evolve through the build-up of genetic correlations between the male signal and female preference.
Bolnick, Daniel I   +3 more
core   +2 more sources

Opsins: Evolution in Waiting [PDF]

open access: yesCurrent Biology, 2005
Complete vertebrate genome sequencing has revealed a remarkable stability and uniformity in the protein-coding gene set, which at first glance might suggest that gene duplication events are relatively rare. This may be a red herring, or at least a red cichlid, as the Lake Malawi cichlid fishes show rapid and extensive duplication and diversification of
Trezise, A. E. O., Collin, S. P.
openaire   +3 more sources

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

Rpgrip1 is required for rod outer segment development and ciliary protein trafficking in zebrafish [PDF]

open access: yes, 2017
The authors would like to thank the Royal Society of London, the National Eye Research Centre, the Visual Research Trust, Fight for Sight, the W.H. Ross Foundation, the Rosetrees Trust, and the Glasgow Children’s Hospital Charity for supporting this work.
A Eblimit   +54 more
core   +4 more sources

S-opsin knockout mice with the endogenous M-opsin gene replaced by an L-opsin variant [PDF]

open access: yesVisual Neuroscience, 2013
AbstractSpecific variants of human long-wavelength (L) and middle-wavelength (M) cone opsin genes have recently been associated with a variety of vision disorders caused by cone malfunction, including red-green color vision deficiency, blue cone monochromacy, myopia, and cone dystrophy. Strikingly, unlike disease-causing mutations in rhodopsin, most of
Scott H, Greenwald   +4 more
openaire   +2 more sources

Opsin Is a Phospholipid Flippase [PDF]

open access: yesCurrent Biology, 2011
Polar lipids must flip-flop rapidly across biological membranes to sustain cellular life [1, 2], but flipping is energetically costly [3] and its intrinsic rate is low. To overcome this problem, cells have membrane proteins that function as lipid transporters (flippases) to accelerate flipping to a physiologically relevant rate.
Sakmar, TP   +9 more
openaire   +4 more sources

A low-cost hyperspectral scanner for natural imaging and the study of animal colour vision above and under water [PDF]

open access: yes, 2019
Hyperspectral imaging is a widely used technology for industrial and scientific purposes, but the high cost and large size of commercial setups have made them impractical for most basic research.
Baden, T, Nevala, N E
core   +1 more source

Ciliary Transport of Opsin [PDF]

open access: yes, 2009
As part of the renewal of photoreceptor outer segment disk membranes, membrane proteins are transported along the region of the cilium, connecting the inner and outer segments. Genetics studies have indicated the role of motor proteins in this transport.
Deepti, Trivedi, David S, Williams
openaire   +2 more sources

Palmitylation of cone opsins

open access: yesVision Research, 2006
Palmitylation is a widespread modification in G-protein-coupled receptors and often a dynamic process. In rhodopsins, palmitylation is static on C322/C323. Red/green (M/LWS) cone opsins have no cysteines at corresponding positions and no palmitylation.
Ablonczy, Zsolt   +3 more
openaire   +2 more sources

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