Results 1 to 10 of about 38,225 (233)

Opsin vs opsin: new materials for biotechnological applications [PDF]

open access: yesJournal 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.
Alfinito, E., Reggiani, L.
core   +2 more sources

Stimulation-Guided AAV Delivery and Longitudinal Assessment of Optogenetic Expression in Rat Motor Nerves [PDF]

open access: yesBio-Protocol
Optogenetic stimulation of peripheral motor nerves is a promising technique for modulating neural activity via illumination of light-sensitive ion channels known as opsins. Stimulating muscle activity through this method offers many advantages, such as a
Emma Moravec, Jordan Williams
doaj   +2 more sources

An Ocean of Opsins. [PDF]

open access: yesGenome Biol Evol
Abstract 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   +2 more sources

Opsin evolution in the Ambulacraria [PDF]

open access: yesMarine Genomics, 2015
Opsins - G-protein coupled receptors involved in photoreception - have been extensively studied in the animal kingdom. The present work provides new insights into opsin-based photoreception and photoreceptor cell evolution with a first analysis of opsin ...
A. Valero-Gracia   +52 more
core   +5 more sources

Broad-Band Activatable White-Opsin.

open access: yesPLoS ONE, 2015
Currently, the use of optogenetic sensitization of retinal cells combined with activation/inhibition has the potential to be an alternative to retinal implants that would require electrodes inside every single neuron for high visual resolution.
Subrata Batabyal   +4 more
doaj   +5 more sources

Rethinking Opsins [PDF]

open access: yesMolecular Biology and Evolution, 2022
Abstract Opsins, the protein moieties of animal visual photo-pigments, have emerged as moonlighting proteins with diverse, light-dependent and -independent physiological functions. This raises the need to revise some basic assumptions concerning opsin expression, structure, classification, and evolution.
Roberto Feuda   +2 more
openaire   +3 more sources

Gene expression patterns of novel visual and non-visual opsin families in immature and mature Japanese eel males [PDF]

open access: yesPeerJ, 2020
This study was carried out to identify and estimate physiological function of a new type of opsin subfamily present in the retina and whole brain tissues of Japanese eel using RNA–Seq transcriptome method.
Jun-Hwan Byun   +9 more
doaj   +2 more sources

Parallel Losses of Blue Opsin Correlate with Compensatory Neofunctionalization of UV-Opsin Gene Duplicates in Aphids and Planthoppers

open access: yesInsects, 2023
Expanding on previous efforts to survey the visual opsin repertoires of the Hemiptera, this study confirms that homologs of the UV- and LW-opsin subfamilies are conserved in all Hemiptera, while the B-opsin subfamily is missing from the Heteroptera and ...
Markus Friedrich
doaj   +1 more source

Opsins and melanopsins [PDF]

open access: yesCurrent Biology, 2002
What are opsins? Opsins are generally considered members of the superfamily of G-protein coupled receptors. But not all opsins activate a G-protein. Their distinguishing features are a 7 transmembrane α-helical structure, and an ability to bind a vitamin A chromophore, retinaldehyde, using a lysine in the 7th α-helix.
Foster, Russell, Bellingham, James
openaire   +3 more sources

Evolution and expression plasticity of opsin genes in a fig pollinator, Ceratosolen solmsi. [PDF]

open access: yesPLoS 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
doaj   +1 more source

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