Results 11 to 20 of about 14,467 (226)
Phototransduction Motifs and Variations [PDF]
Cell, 2009 Seeing begins in the photoreceptors, where light is absorbed and signaled to the nervous system. Throughout the animal kingdom, photoreceptors are diverse in design and purpose. Nonetheless, phototransduction-the mechanism by which absorbed photons are converted into an electrical response-is highly conserved and based almost exclusively on a single ...
Yau, King-Wai, Hardie, Roger C.
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Phototransduction in Drosophila [PDF]
Current Opinion in Neurobiology, 2015 Phototransduction in Drosophila's microvillar photoreceptors is mediated by phospholipase C (PLC) resulting in activation of two distinct Ca(2+)-permeable channels, TRP and TRPL. Here we review recent evidence on the unresolved mechanism of their activation, including the hypothesis that the channels are mechanically activated by physical effects of ...
Hardie, R.C., Juusola, M.
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Loss of gq/11 genes does not abolish melanopsin phototransduction.
PLoS ONE, 2014 In mammals, a subset of retinal ganglion cells (RGCs) expresses the photopigment melanopsin, which renders them intrinsically photosensitive (ipRGCs). These ipRGCs mediate various non-image-forming visual functions such as circadian photoentrainment and ...
Kylie S Chew +4 more
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InsectsOpsin plays a regulatory role in phototaxis of Diaphorina citri, functioning as the initial station in the phototransduction cascade. Our study aimed to explore the D. citri phototransduction pathway to identify elicitors that may enhance D.
Shao-Ping Chen +4 more
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RGS9, a GTPase Accelerator for Phototransduction [PDF]
Neuron, 1998 The rod outer segment phototransduction GAP (GTPase-accelerating protein) has been identified as RGS9, a member of the RGS family of G alpha GAPs. RGS9 mRNA expression is specific for photoreceptor cells, and RGS9 protein colocalizes with other phototransduction components to photoreceptor outer segment membranes. The RGS domain of RGS9 accelerates GTP
He, Wei +2 more
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Evolution of Phototransduction Genes in Lepidoptera [PDF]
Genome Biology and Evolution, 2019 Abstract Vision is underpinned by phototransduction, a signaling cascade that converts light energy into an electrical signal. Among insects, phototransduction is best understood in Drosophila melanogaster. Comparison of D. melanogaster against three insect species found several phototransduction gene gains and losses, however ...
Macias-Muñoz, Aide +2 more
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A quantitative account of mammalian rod phototransduction with PDE6 dimeric activation: responses to bright flashes [PDF]
Open Biology, 2020 We develop an improved quantitative model of mammalian rod phototransduction, and we apply it to the prediction of responses to bright flashes of light.
Trevor D. Lamb, Timothy W. Kraft
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Robust visual cortex evoked potentials (VEP) in Gnat1 and Gnat2 knockout mice
Frontiers in Cellular Neuroscience, 2022 Intrinsically photosensitive retinal ganglion cells (ipRGCs) express the photopigment melanopsin, imparting to themselves the ability to respond to light in the absence of input from rod or cone photoreceptors.
Michael D. Flood +6 more
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Phototransduction in Drosophila [PDF]
Science China Life Sciences, 2012 The Drosophila visual transduction is the fastest known G protein-coupled signaling cascade and has been served as a model for understanding the molecular mechanisms of other G protein-coupled signaling cascades. Numbers of components in visual transduction machinery have been identified. Based on the functional characterization of these genes, a model
Tian, Yao +3 more
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Extravisual opsins in the blind shrimp Creaseria morleyi: presence and expression
Nauplius, 2023 The presence of a long-wavelength sensitive (LWS) opsin gene was demonstrated in the stygobitic crustacean Creaseria morleyi (Creaser, 1936) by PCR readings from genomic DNA.
José R. Pérez-Calderón +5 more
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