Results 21 to 30 of about 1,936 (237)

Optogenetics: Molecular and Optical Tools for Controlling Life with Light [PDF]

open access: yes, 2013
Optogenetic tools are genetically-encoded reagents that, when targeted to specific brain cells, enable their activity to be controlled by light. These tools are having broad impact on science, and may serve clinical roles as well.
Aravanis   +31 more
core   +1 more source

A roadmap to integrate astrocytes into Systems Neuroscience. [PDF]

open access: yes, 2020
Systems neuroscience is still mainly a neuronal field, despite the plethora of evidence supporting the fact that astrocytes modulate local neural circuits, networks, and complex behaviors. In this article, we sought to identify which types of studies are
De Pittà, Maurizio   +7 more
core   +2 more sources

Stabilized Ion Selectivity Corrects Activation Drift in Kalium Channelrhodopsins. [PDF]

open access: yesAdv Sci (Weinh)
As newly emerged optogenetic tools, potassium channelrhodopsins (KCRs) can drift from inhibition to activation during illumination as K⁺ selectivity declines. It is shown that both the absolute K⁺/Na⁺ permeability ratio and its stability over time govern this drift, identify KCR1‐C29D as a reliably inhibitory variant, and outline design principles for ...
Duan X   +14 more
europepmc   +2 more sources

Carbon fixation and rhodopsin systems in microbial mats from hypersaline lakes Brava and Tebenquiche, Salar de Atacama, Chile [PDF]

open access: yes, 2021
In this work, molecular diversity of two hypersaline microbial mats was compared by Whole Genome Shotgun (WGS) sequencing of environmental DNA from the mats.
Contreras, Emanuel   +4 more
core   +1 more source

Comparison of prokaryotic community structure from Mediterranean and Atlantic saltern concentrator ponds by a metagenomic approach

open access: yesFrontiers in Microbiology, 2014
We analyzed the prokaryotic community structure of a saltern pond with 21 % total salts located in Isla Cristina, Huelva, Southwest Spain, close to the Atlantic ocean coast.
Ana Beatriz eFernández   +6 more
doaj   +1 more source

The primary structure of a halorhodopsin from Natronobacterium pharaonis. Structural, functional and evolutionary implications for bacterial rhodopsins and halorhodopsins.

open access: yesJournal of Biological Chemistry, 1990
We cloned and sequenced the gene coding for the polypeptide of a halorhodopsin in Natronobacterium pharaonis (named here pharaonis halorhodopsin). Peptide sequencing of cyanogen bromide fragments, and immunoreactions of the protein and synthetic peptides
J. Lanyi   +4 more
semanticscholar   +1 more source

Tools, methods, and applications for optophysiology in neuroscience

open access: yesFrontiers in Molecular Neuroscience, 2013
The advent of optogenetics and genetically-encoded photosensors has provided neuroscience researchers with a wealth of new tools and methods for examining and manipulating neuronal function in vivo.
Niklas eSmedemark-Margulies   +1 more
doaj   +1 more source

Embryonic Cell Grafts in a Culture Model of Spinal Cord Lesion: Neuronal Relay Formation is Essential for Functional Regeneration

open access: yesFrontiers in Cellular Neuroscience, 2016
Presently there exists no cure for spinal cord injury. However, transplantation of embryonic tissue into spinal cord lesions resulted in axon outgrowth across the lesion site and some functional recovery, fostering hope for future stem cell therapies ...
Anne Tscherter   +3 more
doaj   +1 more source

Therapeutic Strategies for Neuropathic Pain: Potential Application of Pharmacosynthetics and Optogenetics

open access: yesMediators of Inflammation, 2016
Chronic pain originating from neuronal damage remains an incurable symptom debilitating patients. Proposed molecular modalities in neuropathic pain include ion channel expressions, immune reactions, and inflammatory substrate diffusions.
Gum Hwa Lee, Sang Seong Kim
doaj   +1 more source

Iso-halorhodopsin: a stable, 9-cis retinal containing photoproduct of halorhodopsin

open access: yesBiophysical Journal, 1987
Dark-adapted halorhodopsin is a mixture of 13-cis and all-trans retinal chromophoric species. It is known that illumination with blue light increases the all-trans content, and this is reversed partially by brief red illumination. We now find that extended red-light illumination produces a third spectroscopic form.
Zimányi, L., Lanyi, J.K.
openaire   +2 more sources

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