Results 91 to 100 of about 40,625 (235)
MoleculesRhodopsin, a G-protein-coupled receptor (GPCR) comprising the protein opsin covalently linked to the chromophore 11-cis retinal, is pivotal in visual phototransduction.
Miriana Di Stefano +7 more
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Color vision: Opsins and options [PDF]
Proceedings of the National Academy of Sciences, 1999 A recent estimate suggests that we can potentially distinguish 2.3 million colors (1), and yet we achieve this by comparing the rates at which photons are absorbed in just three classes of retinal photopigment (Fig. 1 Lower). The photopigments consist of 11-cis-retinal bound to different “opsins,” which are members of the large family of G-protein ...
openaire +2 more sources
Evolution of cichlid vision via
BMC Evolutionary Biology, 2012 Background Phenotypic evolution may occur through mutations that affect either the structure or expression of protein-coding genes. Although the evolution of color vision has historically been attributed to structural mutations within the opsin genes ...
O’Quin Kelly E +7 more
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Fruit scent and observer colour vision shape food-selection strategies in wild capuchin monkeys [PDF]
, 2019 The senses play critical roles in helping animals evaluate foods, including fruits that can change both in colour and scent during ripening to attract frugivores.
Endo, Mizuki +9 more
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EVOLUTION OF THE CIRCADIAN CLOCK IN EXTREME ENVIRONMENT: LESSONS FROM CAVEFISH. [PDF]
, 2010 Evolution has been strongly influenced by the daily cycles of temperature and light imposed by the rotation of the Earth. Fascinating demonstrations of this are seen in extreme environments such as caves where some animals have remained completely ...
Cavallari, Nicola
core
Vision Research, 2011 Mouse cone photoreceptors, like those of most mammals including humans, express cone opsins derived from two ancient families: S-opsin (gene Opn1sw) and M-opsin (gene Opn1mw). Most C57Bl/6 mouse cones co-express both opsins, but in dorso-ventral counter-gradients, with M-opsin dominant in the dorsal retina and S-opsin in the ventral retina, and S-opsin
Daniele, Lauren L. +5 more
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Multiple ancestral and a plethora of recent gene duplications during the evolution of the green sensitive opsin genes ( RH2 ) in teleost fishes [PDF]
, 2021 Zuzana Musilová, Fabio Cortesi
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Role of guanylyl cyclase modulation in mouse cone phototransduction [PDF]
, 2011 A negative phototransduction feedback in rods and cones is critical for the timely termination of their light responses and for extending their function to a wide range of light intensities. The calcium feedback mechanisms that modulate phototransduction
Chen, Jeannie +2 more
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Engineering of an artificial light-modulated potassium channel.
PLoS ONE, 2012 Ion Channel-Coupled Receptors (ICCRs) are artificial receptor-channel fusion proteins designed to couple ligand binding to channel gating. We previously validated the ICCR concept with various G protein-coupled receptors (GPCRs) fused with the inward ...
Lydia N Caro +4 more
doaj +1 more source