Results 21 to 30 of about 26,493 (243)
Opsin Is a Phospholipid Flippase [PDF]
Current 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
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Opsin vs opsin: New materials for biotechnological applications [PDF]
Journal of Applied Physics, 2014 The need of new diagnostic methods satisfying, as an early detection, a low invasive procedure and a cost-efficient value, is orienting the technological research toward the use of bio-integrated devices, in particular, bio-sensors. The set of know-why necessary to achieve this goal is wide, from biochemistry to electronics and is summarized in an ...
ALFINITO, ELEONORA, REGGIANI, Lino
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Evolution and expression plasticity of opsin genes in a fig pollinator, Ceratosolen solmsi. [PDF]
PLoS ONE, 2013 Figs and fig pollinators have co-evolved species-specific systems of mutualism. So far, it was unknown how visual opsin genes of pollinators have evolved in the light conditions inside their host figs.
Bo Wang +5 more
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Unconventional Roles of Opsins [PDF]
Annual Review of Cell and Developmental Biology, 2017 Rhodopsin is the classical light sensor. Although rhodopsin has long been known to be important for image formation in the eye, the requirements for opsins in non–image formation and in extraocular light sensation were revealed much later. Most recent is the demonstration that an opsin in the fruit fly, Drosophila melanogaster, is expressed in ...
Leung, Nicole Y, Montell, Craig
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Single opsin driven white noise ERGs in mice
Frontiers in Neuroscience, 2023 PurposeElectroretinograms elicited by photopigment isolating white noise stimuli (wnERGs) in mice were measured. The dependency of rod- and cone-opsin-driven wnERGs on mean luminance was studied.MethodsTemporal white noise stimuli (containing all ...
Nina Stallwitz +4 more
doaj +1 more source
An EvoDevo Study of Salmonid Visual Opsin Dynamics and Photopigment Spectral Sensitivity
Frontiers in Neuroanatomy, 2022 Salmonids are ideal models as many species follow a distinct developmental program from demersal eggs and a large yolk sac to hatching at an advanced developmental stage. Further, these economically important teleosts inhabit both marine- and freshwaters
Mariann Eilertsen +12 more
doaj +1 more source
Genome Biol EvolAbstract In this study, we explored the diversity and evolution of opsins using meta-omic data from the Tara Oceans and Tara Polar Circle expeditions, one of the largest marine datasets available. By using sequence similarity methods and phylogenetic analyses, we identified opsins across the different metazoan groups.
De Vivo G +3 more
europepmc +4 more sources
Evolution of opsins and phototransduction [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2009 Opsins are the universal photoreceptor molecules of all visual systems in the animal kingdom. They can change their conformation from a resting state to a signalling state upon light absorption, which activates the G protein, thereby resulting in a signalling cascade that produces physiological responses.
Yoshinori, Shichida, Take, Matsuyama
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Modeling binary and graded cone cell fate patterning in the mouse retina.
PLoS Computational Biology, 2020 Nervous systems are incredibly diverse, with myriad neuronal subtypes defined by gene expression. How binary and graded fate characteristics are patterned across tissues is poorly understood.
Kiara C Eldred +3 more
doaj +1 more source
The expression of three opsin genes from the compound eye of Helicoverpa armigera (Lepidoptera: Noctuidae) is regulated by a circadian clock, light conditions and nutritional status. [PDF]
PLoS ONE, 2014 Visual genes may become inactive in species that inhabit poor light environments, and the function and regulation of opsin components in nocturnal moths are interesting topics.
Shuo Yan +6 more
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