Results 1 to 10 of about 15,921 (237)

The Gluopsins: Opsins without the Retinal Binding Lysine

open access: yesCells, 2022
Opsins allow us to see. They are G-protein-coupled receptors and bind as ligand retinal, which is bound covalently to a lysine in the seventh transmembrane domain. This makes opsins light-sensitive.
Martin Gühmann   +2 more
doaj   +1 more source

The evolution of opsin genes in five species of mirid bugs: duplication of long-wavelength opsins and loss of blue-sensitive opsins

open access: yesBMC Ecology and Evolution, 2021
Background Color vision and phototactic behavior based on opsins are important for the fitness of insects because of their roles in foraging and mate choice.
Pengjun Xu   +5 more
doaj   +1 more source

Opsins as main regulators of skin biology

open access: yesJournal 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   +2 more
doaj   +1 more source

A Large and Phylogenetically Diverse Class of Type 1 Opsins Lacking a Canonical Retinal Binding Site. [PDF]

open access: yesPLoS ONE, 2016
Opsins are photosensitive proteins catalyzing light-dependent processes across the tree of life. For both microbial (type 1) and metazoan (type 2) opsins, photosensing depends upon covalent interaction between a retinal chromophore and a conserved lysine
Erin A Becker   +8 more
doaj   +1 more source

Genetic Constructs for the Control of Astrocytes’ Activity

open access: yesCells, 2021
In the current review, we aim to discuss the principles and the perspectives of using the genetic constructs based on AAV vectors to regulate astrocytes’ activity.
Anastasia A. Borodinova   +4 more
doaj   +1 more source

The First Opsins Prediction in Achatina fulica Genome

open access: yesBiology and Life Sciences Forum, 2022
The variety of spectral properties of visual pigments is provided mainly by the amino acid sequences of their protein component, the so-called visual opsins.
Irina N. Dominova   +2 more
doaj   +1 more source

From the Sea for the Sight: Marine Derived Products for Human Vision

open access: yesFrontiers in Aging Neuroscience, 2022
Visual impairment, at different degrees, produce a reduction of patient wellness which negatively impact in many aspects of working and social activities. Eye diseases can have common cellular damages or dysfunctions (e.g., inflammation, oxidative stress,
Simona Brillante   +3 more
doaj   +1 more source

Creation of photocyclic vertebrate rhodopsin by single amino acid substitution

open access: yeseLife, 2022
Opsins are universal photoreceptive proteins in animals and can be classified into three types based on their photoreaction properties. Upon light irradiation, vertebrate rhodopsin forms a metastable active state, which cannot revert back to the original
Kazumi Sakai   +3 more
doaj   +1 more source

Retinal cone photoreceptors of the deer mouse Peromyscus maniculatus : development, topography, opsin expression and spectral tuning [PDF]

open access: yes, 2013
A quantitative analysis of photoreceptor properties was performed in the retina of the nocturnal deer mouse, Peromyscus maniculatus, using pigmented (wildtype) and albino animals.
Arbogast, Patrick   +2 more
core   +6 more sources

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

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