Results 61 to 70 of about 6,619 (214)

A two-step method for identifying photopigment opsin and rhodopsin gene sequences underlying human color vision phenotypes. [PDF]

open access: yes, 2020
PurposeTo present a detailed, reliable long range-PCR and sequencing (LR-PCR-Seq) procedure to identify human opsin gene sequences for variations in the long wavelength-sensitive (OPN1LW), medium wavelength-sensitive (OPN1MW), short wavelength-sensitive (
Atilano, Shari R   +3 more
core   +1 more source

Ciliary photoreceptors in the cerebral eyes of a protostome larva [PDF]

open access: yes, 2011
BACKGROUND: Eyes in bilaterian metazoans have been described as being composed of either ciliary or rhabdomeric photoreceptors. Phylogenetic distribution, as well as distinct morphologies and characteristic deployment of different photopigments (ciliary
Yale J Passamaneck   +4 more
core   +3 more sources

The deduced amino-acid sequence of opsin from rabbit rod photoreceptors

open access: yesGene, 1995
The amino acid (aa) sequence of rabbit opsin from rod photoreceptor cells was determined by direct aa sequencing and conceptual translation from the cDNA. The cDNA (1198 bp) containing the complete coding region encodes a 348-aa opsin protein. Of the 16 rod cell opsins that are known, rabbit opsin is most similar to human opsin (96.3% identity at the ...
Departments of Ophthalmology, University of Florida, Gainesville, FL 32610-0284, USA ( host institution )   +5 more
openaire   +3 more sources

Human blue cone opsin regeneration involves secondary retinal binding with analog specificity [PDF]

open access: yes, 2018
Human color vision is mediated by the red, green, and blue cone visual pigments. Cone opsins are G-protein-coupled receptors consisting of an opsin apoprotein covalently linked to the 11-cis-retinal chromophore.
Cordomi, Arnau   +6 more
core   +2 more sources

Loss-of-function of the ciliopathy protein Cc2d2a disorganizes the vesicle fusion machinery at the periciliary membrane and indirectly affects Rab8-trafficking in zebrafish photoreceptors [PDF]

open access: yes, 2017
Ciliopathies are human disorders caused by dysfunction of primary cilia, ubiquitous organelles involved in transduction of environmental signals such as light sensation in photoreceptors.
Bachmann-Gagescu, Ruxandra   +7 more
core   +1 more source

Visual predation during springtime foraging of the North Atlantic right whale (Eubalaena glacialis) [PDF]

open access: yes, 2017
Author Posting. © The Author(s), 2017. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution.
Baumgartner, Mark F.   +4 more
core   +1 more source

A second type of rod opsin cDNA from the common carp (Cyprinus carpio) [PDF]

open access: yesBiochimica et Biophysica Acta (BBA) - Gene Structure and Expression, 1997
A second type of rhodopsin cDNA from carp (cRh-II) shared 97.2% polynucleotide identity with the previously reported cRh-I. The deduced amino acid sequences of cRh-I and cRh-II exhibited 98.6% identity. The key difference between these two types of cRh is that valine at position 169 of cRh-I was replaced by glutamic acid in cRh-II.
J, Lim, J L, Chang, H J, Tsai
openaire   +2 more sources

Phylogenetic analysis and ontogenetic changes in the cone opsins of the western mosquitofish (Gambusia affinis).

open access: yesPLoS ONE, 2020
To convert external light into internal neural signal, vertebrates rely on a special group of proteins, the visual opsins. Four of the five types of visual opsins-short-wavelength sensitive 1 (Sws1), short-wavelength sensitive 2 (Sws2), medium-wavelength
Chia-Hao Chang   +3 more
doaj   +1 more source

EVOLUTION OF THE CIRCADIAN CLOCK IN EXTREME ENVIRONMENT: LESSONS FROM CAVEFISH. [PDF]

open access: yes, 2010
Evolution has been strongly influenced by the daily cycles of temperature and light imposed by the rotation of the Earth. Fascinating demonstrations of this are seen in extreme environments such as caves where some animals have remained completely ...
Cavallari, Nicola
core  

Zebrafish differentially process colour across visual space to match natural scenes [PDF]

open access: yes, 2018
Animal eyes have evolved to process behaviourally important visual information, but how retinas deal with statistical asymmetries in visual space remains poorly understood.
Baden, Thomas   +6 more
core   +1 more source

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