Results 21 to 30 of about 40,625 (235)
Retinal cone photoreceptors of the deer mouse Peromyscus maniculatus : development, topography, opsin expression and spectral tuning [PDF]
, 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 +2 more sources
Bat eyes have ultraviolet-sensitive cone photoreceptors. [PDF]
PLoS ONE, 2009 Mammalian retinae have rod photoreceptors for night vision and cone photoreceptors for daylight and colour vision. For colour discrimination, most mammals possess two cone populations with two visual pigments (opsins) that have absorption maxima at short
Brigitte Müller +5 more
doaj +1 more source
Blue light regenerates functional visual pigments in mammals through a retinyl-phospholipid intermediate. [PDF]
, 2017 The light absorbing chromophore in opsin visual pigments is the protonated Schiff base of 11-cis-retinaldehyde (11cRAL). Absorption of a photon isomerizes 11cRAL to all-trans-retinaldehyde (atRAL), briefly activating the pigment before it dissociates ...
Fain, Gordon L +6 more
core +1 more source
BMC Ecology and Evolution, 2022 Background Visual opsins are expressed in the compound eyes and ocelli of insects and enable light detection. Three distinct phylogenetic groups of visual opsins are found in insects, named long (LW), short (SW) and ultraviolet (UV) wavelength sensitive ...
Quentin Guignard +2 more
doaj +1 more source
Frontiers in Zoology, 2007 Background Recent genome sequence analysis in the red flour beetle Tribolium castaneum indicated that this highly crepuscular animal encodes only two single opsin paralogs: a UV-opsin and a long wavelength (LW)-opsin; however, these animals do not encode
Cook Tiffany A +5 more
doaj +1 more source
Mechanisms of Opsin Activation [PDF]
Journal of Biological Chemistry, 1996 Rhodopsin is constrained in an inactive conformation by interactions with 11-cis-retinal including formation of a protonated Schiff base with Lys296. Upon photoisomerization, major structural rearrangements that involve protonation of the active site Glu113 and cytoplasmic acidic residues, including Glu134, lead to the formation of the active form of ...
J, Buczyłko +3 more
openaire +2 more sources
Early stages of retinal development depend on Sec13 function [PDF]
, 2013 Summary ER-to-Golgi transport of proteins destined for the extracellular space or intracellular compartments depends on the COPII vesicle coat and is constitutive in all translationally active cells.
Cavodeassi, Florencia +3 more
core +3 more sources
A low-cost hyperspectral scanner for natural imaging and the study of animal colour vision above and under water [PDF]
, 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
Opsin expression predicts male nuptial color in threespine stickleback. [PDF]
, 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
PLoS ONE, 2019 Vision is very important to fish as it is required for foraging food, fighting competitors, fleeing from predators, and finding potential mates. Vertebrates express opsin genes in photoreceptor cells to receive visual signals, and the variety of light ...
Chia-Hao Chang, Hong Young Yan
doaj +1 more source