Results 51 to 60 of about 15,771 (212)

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

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

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

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

Opsins for vision restoration

open access: yesBiochemical and Biophysical Research Communications, 2020
Optogenetics is a biological technique that combines the advantageous spatial-temporal resolution of optics and genetic cell targeting to control cellular activity with unprecedented precision. It has found vast applications both in neurosciences and therapy, particularly in view of its application to restore vision in blind patients.
Simon, Cardillia-Joe   +4 more
openaire   +3 more sources

A Go-type opsin mediates the shadow reflex in the annelid Platynereis dumerilii

open access: yesBMC Biology, 2018
Background The presence of photoreceptive molecules outside the eye is widespread among animals, yet their functions in the periphery are less well understood.
Thomas Ayers   +4 more
doaj   +1 more source

Optogenetic Gene Therapy for the Degenerate Retina: Recent Advances

open access: yesFrontiers in Neuroscience, 2020
The degeneration of light-detecting rod and cone photoreceptors in the human retina leads to severe visual impairment and ultimately legal blindness in millions of people worldwide.
Michelle E. McClements   +5 more
doaj   +1 more source

Nematostella vectensis exemplifies the exceptional expansion and diversity of opsins in the eyeless Hexacorallia

open access: yesEvoDevo, 2023
Background Opsins are the primary proteins responsible for light detection in animals. Cnidarians (jellyfish, sea anemones, corals) have diverse visual systems that have evolved in parallel with bilaterians (squid, flies, fish) for hundreds of millions ...
Kyle J. McCulloch   +5 more
doaj   +1 more source

Spectral tuning mediated by helix III in butterfly long wavelength-sensitive visual opsins revealed by heterologous action spectroscopy

open access: yesZoological Letters, 2019
Absorption spectra of opsin-based pigments are tuned from the UV to the red regions by interactions of the chromophore with surrounding amino acid residues. Both vertebrates and invertebrates possess long-wavelength-sensitive (LWS) opsins, which underlie
Tomoka Saito   +5 more
doaj   +1 more source

Activation of Transducin by Bistable Pigment Parapinopsin in the Pineal Organ of Lower Vertebrates. [PDF]

open access: yesPLoS ONE, 2015
Pineal organs of lower vertebrates contain several kinds of photosensitive molecules, opsins that are suggested to be involved in different light-regulated physiological functions. We previously reported that parapinopsin is an ultraviolet (UV)-sensitive
Emi Kawano-Yamashita   +5 more
doaj   +1 more source

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